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17
Replies

VLAN DHCP, some not working

m.yildiz
Level 1
Level 1

Dear Community,

 

i have the following issues,

C800 series router, 6 vlans, 4 vlans work perfectly, giving out dhcp leases, internet and so on.

But Vlan 50 and 60 no giving out dhcp adresses.

 

see attached show running-config

ena
C897#show running-config
Building configuration...

Current configuration : 4235 bytes
!
version 15.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname C897
!
boot-start-marker
boot system flash bootflash:c800-universalk9-mz.SPA.159-3.M2.bin
boot-end-marker
!
!
enable secret 5 $1$69R8$ppwDJj5IMK0ewSH.kHIPT.
!
no aaa new-model
!
!
!
ip dhcp excluded-address 192.168.10.1 192.168.10.99
ip dhcp excluded-address 10.10.10.1 10.10.10.99
ip dhcp excluded-address 20.20.20.1 20.20.20.99
ip dhcp excluded-address 30.30.30.1 30.30.30.99
ip dhcp excluded-address 40.40.40.1 40.40.40.99
ip dhcp excluded-address 50.50.50.1 50.50.50.99
ip dhcp excluded-address 60.60.60.1 60.60.60.99
!
ip dhcp pool vlan1
network 192.168.10.0 255.255.255.0
default-router 192.168.1.1
dns-server 192.168.1.1
lease 0 1
!
ip dhcp pool vlan10
network 10.10.10.0 255.255.255.0
default-router 10.10.10.1
dns-server 192.168.1.1
lease 0 1
!
ip dhcp pool vlan20
network 20.20.20.0 255.255.255.0
default-router 20.20.20.1
dns-server 192.168.1.1
lease 0 1
!
ip dhcp pool vlan30
network 30.30.30.0 255.255.255.0
default-router 20.20.20.1
dns-server 192.168.1.1
lease 0 1
!
ip dhcp pool vlan40
network 40.0.0.0 255.0.0.0
default-router 40.40.40.1
dns-server 192.168.1.1
lease 0 1
!
ip dhcp pool vlan50
network 50.50.50.0 255.255.255.0
default-router 50.50.50.1
dns-server 192.168.1.1
lease 0 1
!
ip dhcp pool vlan60
network 60.60.60.0 255.255.255.0
default-router 60.60.60.1
dns-server 192.168.1.1
lease 0 1
!
!
!
ip cef
no ipv6 cef
multilink bundle-name authenticated


cts logging verbose
license udi pid C897VA-K9 sn FCZ2012902F
!
username Cisco privilege 15 secret 5 $1$0cBV$U.RL9goycpWEAtCRR5O8c.
!
!
controller VDSL 0
!

!
interface ATM0
no ip address
shutdown
no atm ilmi-keepalive
!
interface BRI0
no ip address
encapsulation hdlc
shutdown
isdn termination multidrop
!
interface Ethernet0
no ip address
shutdown
!
interface GigabitEthernet0
switchport mode trunk
no ip address
!
interface GigabitEthernet1
switchport mode trunk
no ip address
!
interface GigabitEthernet2
switchport mode trunk
no ip address
!
interface GigabitEthernet3
switchport mode trunk
no ip address
!
interface GigabitEthernet4
switchport mode trunk
no ip address
!
interface GigabitEthernet5
switchport mode trunk
no ip address
!
interface GigabitEthernet6
switchport mode trunk
no ip address
!
interface GigabitEthernet7
switchport mode trunk
no ip address
!
interface GigabitEthernet8
ip address dhcp
ip nat outside
ip virtual-reassembly in
duplex auto
speed auto
!
interface Vlan1
ip address 192.168.10.1 255.255.255.0
ip nat inside
ip virtual-reassembly in
!
interface Vlan10
ip address 10.10.10.1 255.255.255.0
ip nat inside
ip virtual-reassembly in
!
interface Vlan20
ip address 20.20.20.1 255.255.255.0
ip nat inside
ip virtual-reassembly in
!
interface Vlan30
ip address 30.30.30.1 255.255.255.0
ip nat inside
ip virtual-reassembly in
!
interface Vlan40
ip address 40.40.40.1 255.0.0.0
ip nat inside
ip virtual-reassembly in
!
interface Vlan50
ip address 50.50.50.1 255.255.255.0
ip nat inside
ip virtual-reassembly in
!
interface Vlan60
ip address 60.60.60.1 255.255.255.0
ip nat inside
ip virtual-reassembly in
!
ip forward-protocol nd
ip http server
ip http authentication local
no ip http secure-server
!
!
ip nat inside source list 100 interface GigabitEthernet8 overload
!
!
access-list 100 permit ip 192.168.10.0 0.0.0.255 any
access-list 100 permit ip 10.10.10.0 0.0.0.255 any
access-list 100 permit ip 20.20.20.0 0.0.0.255 any
access-list 100 permit ip 30.30.30.0 0.0.0.255 any
access-list 100 permit ip 40.0.0.0 0.255.255.255 any
access-list 100 permit ip 50.50.50.0 0.0.0.255 any
access-list 100 permit ip 60.60.60.0 0.0.0.255 any
!
control-plane
!
!
mgcp behavior rsip-range tgcp-only
mgcp behavior comedia-role none
mgcp behavior comedia-check-media-src disable
mgcp behavior comedia-sdp-force disable
!
mgcp profile default
!
!
vstack
!
line con 0
no modem enable
line aux 0
line vty 0 4
login local
transport input telnet
line vty 5 15
login local
transport input telnet
!
scheduler allocate 20000 1000
!
!
!
end

Can anyone help me figure out the issue?

thanks for help

 

2 Accepted Solutions

Accepted Solutions

Hello
Sounds like you had ghost configuration applied, Clearing it down totally was a drastic, Probably a reload would have sufficed or just removing any static reservations and clearing the dhcp binding, And the reason why I requested you to clear any static dhcp reservation and binding D/B is the logging you posted showed “DHCPD: Found previous server binding”
Lastly as for the  static default route this is necessary for your egress traffic so not for your rtr to incur any unwarranted recursive lookups or arp broadcasts.


Please rate and mark as an accepted solution if you have found any of the information provided useful.
This then could assist others on these forums to find a valuable answer and broadens the community’s global network.

Kind Regards
Paul

View solution in original post

m.yildiz
Level 1
Level 1

Hello,

 

Now working for past 24h without any issues.

vlan 30, i corrected dns server too, it was working anyway.

thanks for all the support.

stay safe!

thanks again

View solution in original post

17 Replies 17

johnlloyd_13
Level 9
Level 9

hi,

are the L2 switch access port configured with the correct VLAN 50 or 60?

are the PC set to obtain DHCP IP?

can you run the debug ip dhcp server events on the 897 router?

Hi,

 

I connected a wifi acces point, with different ssid and tags.

Ssid vlan 10 and so on.

all working except vlan 50 and 60.

even i connect directly to c897, same issue.

2-3 hours, i will post the debug dhcp ip.

Thanks foe help

here the logging

 

Nov 18 11:46:40.355: DHCPD: Sending notification of DISCOVER:
Nov 18 11:46:40.355: DHCPD: htype 1 chaddr 6a09.a33f.e156
Nov 18 11:46:40.355: DHCPD: remote id 020a00001e1e1e010701001e
Nov 18 11:46:40.355: DHCPD: circuit id 00000000
Nov 18 11:46:40.355: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:46:40.355: DHCPD: htype 1 chaddr 6a09.a33f.e156
Nov 18 11:46:40.355: DHCPD: remote id 020a00001e1e1e010701001e
Nov 18 11:46:40.355: DHCPD: circuit id 00000000
Nov 18 11:46:40.355: DHCPD: Found previous server binding
C897#
Nov 18 11:46:49.391: DHCPD: Sending notification of DISCOVER:
Nov 18 11:46:49.391: DHCPD: htype 1 chaddr 6a09.a33f.e156
Nov 18 11:46:49.391: DHCPD: remote id 020a00001e1e1e010701001e
Nov 18 11:46:49.391: DHCPD: circuit id 00000000
Nov 18 11:46:49.391: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:46:49.391: DHCPD: htype 1 chaddr 6a09.a33f.e156
Nov 18 11:46:49.391: DHCPD: remote id 020a00001e1e1e010701001e
Nov 18 11:46:49.391: DHCPD: circuit id 00000000
Nov 18 11:46:49.391: DHCPD: Found previous server binding
Nov 18 11:46:50.567: DHCPD: Sending notification of DISCOVER:
Nov 18 11:46:50.567: DHCPD: htype 1 chaddr 6a09.a33f.e156
Nov 18 11:46:50.567: DHCPD: remote id 020a00001e1e1e010701001e
Nov 18 11:46:50.567: DHCPD: circuit id 00000000
Nov 18 11:46:50.567: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:46:50.567: DHCPD: htype 1 chaddr 6a09.a33f.e156
Nov 18 11:46:50.567: DHCPD: remote id 020a00001e1e1e010701001e
Nov 18 11:46:50.567: DHCPD: circuit id 00000000
Nov 18 11:46:50.567: DHCPD: Found previous server binding
Nov 18 11:46:51.739: DHCPD: Sending notification of DISCOVER:
Nov 18 11:46:51.739: DHCPD: htype 1 chaddr 6a09.a33f.e156
Nov 18 11:46:51.739: DHCPD: remote id 020a00001e1e1e010701001e
Nov 18 11:46:51.739: DHCPD: circuit id 00000000
Nov 18 11:46:51.739: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:46:51.739: DHCPD: htype 1 chaddr 6a09.a33f.e156
Nov 18 11:46:51.739: DHCPD: remote id 020a00001e1e1e010701001e
Nov 18 11:46:51.739: DHCPD: circuit id 00000000
Nov 18 11:46:51.739: DHCPD: Found previous server binding
Nov 18 11:46:52.883: DHCPD: Sending notification of DISCOVER:
Nov 18 11:46:52.883: DHCPD: htype 1 chaddr 6a09.a33f.e156
Nov 18 11:46:52.883: DHCPD: remote id 020a00001e1e1e010701001e
Nov 18 11:46:52.883: DHCPD: circuit id 00000000
Nov 18 11:46:52.883: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:46:52.883: DHCPD: htype 1 chaddr 6a09.a33f.e156
Nov 18 11:46:52.883: DHCPD: remote id 020a00001e1e1e010701001e
Nov 18 11:46:52.883: DHCPD: circuit id 00000000
Nov 18 11:46:52.887: DHCPD: Found previous server binding
Nov 18 11:46:54.579: DHCPD: Sending notification of DISCOVER:
Nov 18 11:46:54.579: DHCPD: htype 1 chaddr fe0e.27a1.9f83
Nov 18 11:46:54.579: DHCPD: remote id 020a00001414140107010014
Nov 18 11:46:54.579: DHCPD: circuit id 00000000
Nov 18 11:46:54.579: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:46:54.579: DHCPD: htype 1 chaddr fe0e.27a1.9f83
Nov 18 11:46:54.579: DHCPD: remote id 020a00001414140107010014
Nov 18 11:46:54.579: DHCPD: circuit id 00000000
Nov 18 11:46:54.579: DHCPD: Allocated binding EFD33FC
Nov 18 11:46:54.579: DHCPD: Adding binding to radix tree (20.20.20.101)
Nov 18 11:46:54.579: DHCPD: Adding binding to hash tree
Nov 18 11:46:54.579: DHCPD: assigned IP address 20.20.20.101 to client 01fe.0e27.a19f.83.
Nov 18 11:46:56.579: DHCPD: Sending notification of DISCOVER:
Nov 18 11:46:56.579: DHCPD: htype 1 chaddr fe0e.27a1.9f83
Nov 18 11:46:56.579: DHCPD: remote id 020a00001414140107010014
Nov 18 11:46:56.579: DHCPD: circuit id 00000000
Nov 18 11:46:56.579: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:46:56.579: DHCPD: htype 1 chaddr fe0e.27a1.9f83
Nov 18 11:46:56.579: DHCPD: remote id 020a00001414140107010014
Nov 18 11:46:56.579: DHCPD: circuit id 00000000
Nov 18 11:46:57.051: DHCPD: Sending notification of DISCOVER:
Nov 18 11:46:57.051: DHCPD: htype 1 chaddr fe0e.27a1.9f83
Nov 18 11:46:57.051: DHCPD: remote id 020a00001414140107010014
Nov 18 11:46:57.051: DHCPD: circuit id 00000000
Nov 18 11:46:57.051: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:46:57.051: DHCPD: htype 1 chaddr fe0e.27a1.9f83
Nov 18 11:46:57.051: DHCPD: remote id 020a00001414140107010014
Nov 18 11:46:57.051: DHCPD: circuit id 00000000
Nov 18 11:46:57.051: DHCPD: Found previous server binding
Nov 18 11:47:08.415: DHCPD: Sending notification of DISCOVER:
Nov 18 11:47:08.415: DHCPD: htype 1 chaddr e23c.340d.36a7
Nov 18 11:47:08.415: DHCPD: remote id 020a00003c3c3c010701003c
Nov 18 11:47:08.415: DHCPD: circuit id 00000000
Nov 18 11:47:08.415: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:47:08.415: DHCPD: htype 1 chaddr e23c.340d.36a7
Nov 18 11:47:08.415: DHCPD: remote id 020a00003c3c3c010701003c
Nov 18 11:47:08.415: DHCPD: circuit id 00000000
Nov 18 11:47:08.415: DHCPD: Found previous server binding
Nov 18 11:47:09.427: DHCPD: Sending notification of ASSIGNMENT:
Nov 18 11:47:09.427: DHCPD: address 60.60.60.101 mask 255.255.255.0
Nov 18 11:47:09.427: DHCPD: htype 1 chaddr e23c.340d.36a7
Nov 18 11:47:09.427: DHCPD: lease time remaining (secs) = 3600
Nov 18 11:47:32.332: DHCPD: Sending notification of DISCOVER:
Nov 18 11:47:32.332: DHCPD: htype 1 chaddr 0ec1.6740.4f9a
Nov 18 11:47:32.332: DHCPD: remote id 020a0000c0a80a0107010001
Nov 18 11:47:32.332: DHCPD: circuit id 00000000
Nov 18 11:47:32.332: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:47:32.332: DHCPD: htype 1 chaddr 0ec1.6740.4f9a
Nov 18 11:47:32.332: DHCPD: remote id 020a0000c0a80a0107010001
Nov 18 11:47:32.332: DHCPD: circuit id 00000000
Nov 18 11:47:32.332: DHCPD: Allocated binding 10997568
Nov 18 11:47:32.332: DHCPD: Adding binding to radix tree (192.168.10.104)
Nov 18 11:47:32.332: DHCPD: Adding binding to hash tree
Nov 18 11:47:32.332: DHCPD: assigned IP address 192.168.10.104 to client 010e.c167.404f.9a.
Nov 18 11:47:33.560: DHCPD: Sending notification of DISCOVER:
Nov 18 11:47:33.560: DHCPD: htype 1 chaddr 0ec1.6740.4f9a
Nov 18 11:47:33.560: DHCPD: remote id 020a0000c0a80a0107010001
Nov 18 11:47:33.560: DHCPD: circuit id 00000000
Nov 18 11:47:33.560: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:47:33.560: DHCPD: htype 1 chaddr 0ec1.6740.4f9a
Nov 18 11:47:33.560: DHCPD: remote id 020a0000c0a80a0107010001
Nov 18 11:47:33.560: DHCPD: circuit id 00000000
Nov 18 11:47:33.560: DHCPD: Found previous server binding
Nov 18 11:47:34.332: DHCPD: Sending notification of DISCOVER:
Nov 18 11:47:34.332: DHCPD: htype 1 chaddr 0ec1.6740.4f9a
Nov 18 11:47:34.332: DHCPD: remote id 020a0000c0a80a0107010001
Nov 18 11:47:34.332: DHCPD: circuit id 00000000
Nov 18 11:47:34.332: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:47:34.332: DHCPD: htype 1 chaddr 0ec1.6740.4f9a
Nov 18 11:47:34.332: DHCPD: remote id 020a0000c0a80a0107010001
Nov 18 11:47:34.332: DHCPD: circuit id 00000000
Nov 18 11:47:43.100: DHCPD: Sending notification of DISCOVER:
Nov 18 11:47:43.100: DHCPD: htype 1 chaddr 0ec1.6740.4f9a
Nov 18 11:47:43.100: DHCPD: remote id 020a0000c0a80a0107010001
Nov 18 11:47:43.100: DHCPD: circuit id 00000000
Nov 18 11:47:43.100: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:47:43.100: DHCPD: htype 1 chaddr 0ec1.6740.4f9a
Nov 18 11:47:43.100: DHCPD: remote id 020a0000c0a80a0107010001
Nov 18 11:47:43.100: DHCPD: circuit id 00000000
Nov 18 11:47:43.100: DHCPD: Found previous server binding
Nov 18 11:47:44.332: DHCPD: Sending notification of DISCOVER:
Nov 18 11:47:44.332: DHCPD: htype 1 chaddr 0ec1.6740.4f9a
Nov 18 11:47:44.332: DHCPD: remote id 020a0000c0a80a0107010001
Nov 18 11:47:44.332: DHCPD: circuit id 00000000
Nov 18 11:47:44.332: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:47:44.332: DHCPD: htype 1 chaddr 0ec1.6740.4f9a
Nov 18 11:47:44.332: DHCPD: remote id 020a0000c0a80a0107010001
Nov 18 11:47:44.332: DHCPD: circuit id 00000000
Nov 18 11:47:44.332: DHCPD: Found previous server binding
Nov 18 11:47:45.580: DHCPD: Sending notification of DISCOVER:
Nov 18 11:47:45.580: DHCPD: htype 1 chaddr 0ec1.6740.4f9a
Nov 18 11:47:45.580: DHCPD: remote id 020a0000c0a80a0107010001
Nov 18 11:47:45.580: DHCPD: circuit id 00000000
Nov 18 11:47:45.580: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:47:45.580: DHCPD: htype 1 chaddr 0ec1.6740.4f9a
Nov 18 11:47:45.580: DHCPD: remote id 020a0000c0a80a0107010001
Nov 18 11:47:45.580: DHCPD: circuit id 00000000
Nov 18 11:47:45.580: DHCPD: Found previous server binding
Nov 18 11:47:51.936: DHCPD: Sending notification of DISCOVER:
Nov 18 11:47:51.936: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:47:51.936: DHCPD: remote id 020a00002828280107010028
Nov 18 11:47:51.936: DHCPD: circuit id 00000000
Nov 18 11:47:51.936: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:47:51.936: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:47:51.936: DHCPD: remote id 020a00002828280107010028
Nov 18 11:47:51.936: DHCPD: circuit id 00000000
Nov 18 11:47:51.936: DHCPD: Allocated binding 287D428
Nov 18 11:47:51.936: DHCPD: Adding binding to radix tree (40.0.0.2)
Nov 18 11:47:51.936: DHCPD: Adding binding to hash tree
Nov 18 11:47:51.936: DHCPD: assigned IP address 40.0.0.2 to client 0190.8c43.f3e1.f8.
Nov 18 11:47:53.040: DHCPD: Sending notification of DISCOVER:
Nov 18 11:47:53.040: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:47:53.040: DHCPD: remote id 020a00002828280107010028
Nov 18 11:47:53.040: DHCPD: circuit id 00000000
Nov 18 11:47:53.040: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:47:53.040: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:47:53.040: DHCPD: remote id 020a00002828280107010028
Nov 18 11:47:53.040: DHCPD: circuit id 00000000
Nov 18 11:47:53.040: DHCPD: Found previous server binding
Nov 18 11:47:53.936: DHCPD: Sending notification of DISCOVER:
Nov 18 11:47:53.936: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:47:53.936: DHCPD: remote id 020a00002828280107010028
Nov 18 11:47:53.936: DHCPD: circuit id 00000000
Nov 18 11:47:53.936: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:47:53.936: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:47:53.936: DHCPD: remote id 020a00002828280107010028
Nov 18 11:47:53.936: DHCPD: circuit id 00000000
Nov 18 11:47:54.120: DHCPD: Sending notification of DISCOVER:
Nov 18 11:47:54.120: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:47:54.120: DHCPD: remote id 020a00002828280107010028
Nov 18 11:47:54.120: DHCPD: circuit id 00000000
Nov 18 11:47:54.120: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:47:54.120: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:47:54.120: DHCPD: remote id 020a00002828280107010028
Nov 18 11:47:54.120: DHCPD: circuit id 00000000
Nov 18 11:47:54.120: DHCPD: Found previous server binding
Nov 18 11:47:55.136: DHCPD: Sending notification of DISCOVER:
Nov 18 11:47:55.136: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:47:55.136: DHCPD: remote id 020a00002828280107010028
Nov 18 11:47:55.136: DHCPD: circuit id 00000000
Nov 18 11:47:55.136: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:47:55.136: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:47:55.136: DHCPD: remote id 020a00002828280107010028
Nov 18 11:47:55.136: DHCPD: circuit id 00000000
Nov 18 11:47:55.136: DHCPD: Found previous server binding
Nov 18 11:47:56.148: DHCPD: Sending notification of DISCOVER:
Nov 18 11:47:56.148: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:47:56.148: DHCPD: remote id 020a00002828280107010028
Nov 18 11:47:56.148: DHCPD: circuit id 00000000
Nov 18 11:47:56.148: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:47:56.148: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:47:56.148: DHCPD: remote id 020a00002828280107010028
Nov 18 11:47:56.148: DHCPD: circuit id 00000000
Nov 18 11:47:56.148: DHCPD: Found previous server binding
Nov 18 11:47:57.340: DHCPD: Sending notification of DISCOVER:
Nov 18 11:47:57.340: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:47:57.340: DHCPD: remote id 020a00002828280107010028
Nov 18 11:47:57.340: DHCPD: circuit id 00000000
Nov 18 11:47:57.340: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:47:57.340: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:47:57.340: DHCPD: remote id 020a00002828280107010028
Nov 18 11:47:57.340: DHCPD: circuit id 00000000
Nov 18 11:47:57.340: DHCPD: Found previous server binding
Nov 18 11:47:58.472: DHCPD: Sending notification of DISCOVER:
Nov 18 11:47:58.472: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:47:58.472: DHCPD: remote id 020a00002828280107010028
Nov 18 11:47:58.472: DHCPD: circuit id 00000000
Nov 18 11:47:58.472: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:47:58.472: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:47:58.472: DHCPD: remote id 020a00002828280107010028
Nov 18 11:47:58.472: DHCPD: circuit id 00000000
Nov 18 11:47:58.472: DHCPD: Found previous server binding
Nov 18 11:47:59.640: DHCPD: Sending notification of DISCOVER:
Nov 18 11:47:59.640: DHCPD: htype 1 chaddr e23c.340d.36a7
Nov 18 11:47:59.640: DHCPD: remote id 020a00003c3c3c010701003c
Nov 18 11:47:59.640: DHCPD: circuit id 00000000
Nov 18 11:47:59.640: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:47:59.640: DHCPD: htype 1 chaddr e23c.340d.36a7
Nov 18 11:47:59.640: DHCPD: remote id 020a00003c3c3c010701003c
Nov 18 11:47:59.640: DHCPD: circuit id 00000000
Nov 18 11:47:59.640: DHCPD: Found previous server binding
Nov 18 11:48:00.664: DHCPD: Sending notification of ASSIGNMENT:
Nov 18 11:48:00.664: DHCPD: address 60.60.60.101 mask 255.255.255.0
Nov 18 11:48:00.664: DHCPD: htype 1 chaddr e23c.340d.36a7
Nov 18 11:48:00.664: DHCPD: lease time remaining (secs) = 3600
Nov 18 11:48:10.360: DHCPD: Sending notification of DISCOVER:
Nov 18 11:48:10.360: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:48:10.360: DHCPD: remote id 020a00002828280107010028
Nov 18 11:48:10.360: DHCPD: circuit id 00000000
Nov 18 11:48:10.360: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:48:10.360: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:48:10.360: DHCPD: remote id 020a00002828280107010028
Nov 18 11:48:10.360: DHCPD: circuit id 00000000
Nov 18 11:48:10.360: DHCPD: Found previous server binding
Nov 18 11:48:16.576: DHCPD: Sending notification of DISCOVER:
Nov 18 11:48:16.576: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:48:16.576: DHCPD: remote id 020a00002828280107010028
Nov 18 11:48:16.576: DHCPD: circuit id 00000000
Nov 18 11:48:16.576: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:48:16.576: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:48:16.576: DHCPD: remote id 020a00002828280107010028
Nov 18 11:48:16.576: DHCPD: circuit id 00000000
Nov 18 11:48:16.576: DHCPD: Found previous server binding
Nov 18 11:48:17.604: DHCPD: Sending notification of DISCOVER:
Nov 18 11:48:17.604: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:48:17.604: DHCPD: remote id 020a00002828280107010028
Nov 18 11:48:17.604: DHCPD: circuit id 00000000
Nov 18 11:48:17.604: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:48:17.604: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:48:17.604: DHCPD: remote id 020a00002828280107010028
Nov 18 11:48:17.604: DHCPD: circuit id 00000000
Nov 18 11:48:17.604: DHCPD: Found previous server binding
Nov 18 11:48:18.368: DHCPD: checking for expired leases.
Nov 18 11:48:23.424: DHCPD: Sending notification of DISCOVER:
Nov 18 11:48:23.424: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:23.424: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:23.424: DHCPD: circuit id 00000000
Nov 18 11:48:23.424: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:48:23.424: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:23.424: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:23.424: DHCPD: circuit id 00000000
Nov 18 11:48:23.424: DHCPD: Found previous server binding
Nov 18 11:48:25.612: DHCPD: Sending notification of DISCOVER:
Nov 18 11:48:25.612: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:48:25.612: DHCPD: remote id 020a00002828280107010028
Nov 18 11:48:25.612: DHCPD: circuit id 00000000
Nov 18 11:48:25.612: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:48:25.612: DHCPD: htype 1 chaddr 908c.43f3.e1f8
Nov 18 11:48:25.612: DHCPD: remote id 020a00002828280107010028
Nov 18 11:48:25.612: DHCPD: circuit id 00000000
Nov 18 11:48:25.612: DHCPD: Found previous server binding
Nov 18 11:48:27.064: DHCPD: Sending notification of DISCOVER:
Nov 18 11:48:27.064: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:27.064: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:27.064: DHCPD: circuit id 00000000
Nov 18 11:48:27.064: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:48:27.064: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:27.064: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:27.064: DHCPD: circuit id 00000000
Nov 18 11:48:27.064: DHCPD: Found previous server binding
Nov 18 11:48:28.136: DHCPD: Sending notification of DISCOVER:
Nov 18 11:48:28.136: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:28.136: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:28.136: DHCPD: circuit id 00000000
Nov 18 11:48:28.136: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:48:28.136: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:28.136: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:28.136: DHCPD: circuit id 00000000
Nov 18 11:48:28.136: DHCPD: Found previous server binding
Nov 18 11:48:29.184: DHCPD: Sending notification of DISCOVER:
Nov 18 11:48:29.184: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:29.184: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:29.184: DHCPD: circuit id 00000000
Nov 18 11:48:29.184: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:48:29.184: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:29.184: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:29.184: DHCPD: circuit id 00000000
Nov 18 11:48:29.184: DHCPD: Found previous server binding
Nov 18 11:48:30.209: DHCPD: Sending notification of DISCOVER:
Nov 18 11:48:30.209: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:30.209: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:30.209: DHCPD: circuit id 00000000
Nov 18 11:48:30.209: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:48:30.209: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:30.209: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:30.209: DHCPD: circuit id 00000000
Nov 18 11:48:30.209: DHCPD: Found previous server binding
Nov 18 11:48:31.177: DHCPD: Sending notification of DISCOVER:
Nov 18 11:48:31.177: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:31.177: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:31.177: DHCPD: circuit id 00000000
Nov 18 11:48:31.177: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:48:31.177: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:31.177: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:31.177: DHCPD: circuit id 00000000
Nov 18 11:48:31.177: DHCPD: Found previous server binding
Nov 18 11:48:32.189: DHCPD: Sending notification of DISCOVER:
Nov 18 11:48:32.189: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:32.189: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:32.189: DHCPD: circuit id 00000000
Nov 18 11:48:32.189: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:48:32.189: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:32.189: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:32.189: DHCPD: circuit id 00000000
Nov 18 11:48:32.189: DHCPD: Found previous server binding
Nov 18 11:48:33.257: DHCPD: Sending notification of DISCOVER:
Nov 18 11:48:33.257: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:33.257: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:33.257: DHCPD: circuit id 00000000
Nov 18 11:48:33.257: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:48:33.257: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:33.257: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:33.257: DHCPD: circuit id 00000000
Nov 18 11:48:33.257: DHCPD: Found previous server binding
Nov 18 11:48:34.329: DHCPD: Sending notification of DISCOVER:
Nov 18 11:48:34.329: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:34.329: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:34.329: DHCPD: circuit id 00000000
Nov 18 11:48:34.329: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:48:34.329: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:34.329: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:34.329: DHCPD: circuit id 00000000
Nov 18 11:48:34.329: DHCPD: Found previous server binding
Nov 18 11:48:35.437: DHCPD: Sending notification of DISCOVER:
Nov 18 11:48:35.437: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:35.437: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:35.437: DHCPD: circuit id 00000000
Nov 18 11:48:35.437: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:48:35.437: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:35.437: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:35.437: DHCPD: circuit id 00000000
Nov 18 11:48:35.437: DHCPD: Found previous server binding
Nov 18 11:48:36.577: DHCPD: Sending notification of DISCOVER:
Nov 18 11:48:36.577: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:36.577: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:36.577: DHCPD: circuit id 00000000
Nov 18 11:48:36.577: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:48:36.577: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:36.577: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:36.577: DHCPD: circuit id 00000000
Nov 18 11:48:36.577: DHCPD: Found previous server binding
Nov 18 11:48:37.561: DHCPD: Sending notification of DISCOVER:
Nov 18 11:48:37.561: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:37.561: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:37.561: DHCPD: circuit id 00000000
Nov 18 11:48:37.561: DHCPD: Seeing if there is an internally specified pool class:
Nov 18 11:48:37.561: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:37.561: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:37.561: DHCPD: circuit id 00000000
Nov 18 11:48:37.561: DHCPD: Found previous server binding
Nov 18 11:48:39.649: DHCPD: Sending notification of DISCOVER:
Nov 18 11:48:39.649: DHCPD: htype 1 chaddr 8a0b.bfe7.6423
Nov 18 11:48:39.649: DHCPD: remote id 020a00000a0a0a010701000a
Nov 18 11:48:39.649: DHCPD: circ

 

 

i really do not understand it,

somehow once a while work, after i canot connect to other vlans,

getting crazy slowly sure.

Hello,

 

I assume the Vlans (50 and 60) exist in the Vlan database ? I would just delete them and add them again:

 

800(config)#no vlan 50

800(config)#no vlan 60

800(config)#exit

800#conf t

800(config)#vlan 50

800(config)#vlan 60

800(config)#exit

 

 

Hi sir,

 

same same sir.

what is next step i can do?

clear config

and make new config?

could you please check my 1 posting?

is it correct?

thanks for help

Hello,

 

try to stop and start the dhcp service:

 

800#conf t

800(config)#no service dhcp

800(config)#exit

800#wr

800#reload

 

800#conf t

800(config)#service dhcp

800(config)#exit

800#wr

800#reload

 

Hello

Remove any static dhcp reservation, Clear the dhcp server bindings and specify a default route then test again

clear ip dhcp binding *
ip route 0.0.0.0 0.0.0.0 gig0/8 dhcp


Please rate and mark as an accepted solution if you have found any of the information provided useful.
This then could assist others on these forums to find a valuable answer and broadens the community’s global network.

Kind Regards
Paul

Hi Paul

 

i did erase nvram:

configured new

and added the ip route you told me,

now sees working and pretty fast dhcp

thank so much

Hello,

 

so basically you erased the entire configuration and started from scratch ? Good to know that it works now.

Hello

Thanks for the feedback glad it helped....


Please rate and mark as an accepted solution if you have found any of the information provided useful.
This then could assist others on these forums to find a valuable answer and broadens the community’s global network.

Kind Regards
Paul

Yes sir,

but i dont know if the ip route needs or not.

but i added it.

now no issues so far, lets try few days.

thanks

Hello
Sounds like you had ghost configuration applied, Clearing it down totally was a drastic, Probably a reload would have sufficed or just removing any static reservations and clearing the dhcp binding, And the reason why I requested you to clear any static dhcp reservation and binding D/B is the logging you posted showed “DHCPD: Found previous server binding”
Lastly as for the  static default route this is necessary for your egress traffic so not for your rtr to incur any unwarranted recursive lookups or arp broadcasts.


Please rate and mark as an accepted solution if you have found any of the information provided useful.
This then could assist others on these forums to find a valuable answer and broadens the community’s global network.

Kind Regards
Paul

Hi Paul,

 

i did that before

clear ip dhcp / static bindings

reboot many times.

issue was same.

i think erase nvram was the best solution.

i have a similar router with same config, (C891), i will check it after and keep you updated.

give me 1-2 day time.

thanks

The static default route does not have anything to do with DHCP. But the original config that was posted did not have any default route and without a default route you would not have any access to outside.

 

I will point out one issue about DHCP in the original config

ip dhcp pool vlan30
network 30.30.30.0 255.255.255.0
default-router 20.20.20.1

The default router should be an IP address in the subnet of the pool. So it should have specified 30.30.30.1.

HTH

Rick
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