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DHCP Pool on VLAN with PC fixed address

victorc7
Level 1
Level 1

‎04-20-2021 04:26 PM

Hello,

 

I am trying to configure on a Catalyst 1000 switch a DHCP Server on network 192.168.1.0/24 with a fixed IP address of 192.168.1.10 for a PC Network with a specific MAC address.

 

Here is the steps I followed :

1) Type commands on Switch

conf t

ip dhcp pool 192.168.1.0
	network 192.168.1.0 255.255.255.0
	default-router 192.168.1.1
	exit

int vlan 1
	ip address pool 192.168.1.0
	exit

ip dhcp pool PC
	host 192.168.1.10
	hardware-address 01xx.xxxx.xxxx.xx
	exit

do sh ip dhcp pool

 

2) Check on Switch

Pool 192.168.1.0 :
 Utilization mark (high/low)    : 100 / 0
 Subnet size (first/next)       : 0 / 0
 Total addresses                : 254
 Leased addresses               : 0
 Excluded addresses             : 1
 Pending event                  : none
 1 subnet is currently in the pool :
 Current index        IP address range                    Leased/Excluded/Total
 192.168.1.1          192.168.1.1      - 192.168.1.254     0     / 1     / 254

Pool PC :
 Utilization mark (high/low)    : 100 / 0
 Subnet size (first/next)       : 0 / 0
 Total addresses                : 1
 Leased addresses               : 1
 Excluded addresses             : 1
 Pending event                  : none
 0 subnet is currently in the pool :
 Current index        IP address range                    Leased/Excluded/Total
 192.168.1.10         192.168.1.10     - 192.168.1.10      1     / 1     / 1

 

3) Type commands on Switch

do clear ip dhcp binding *

 

 

4) Type commands on PC

ipconfig /release && ipconfig /renew

No IP delivered

 

5) Type commands on Switch

do sh interfaces

 

6) Check

Vlan1 is up, line protocol is up
Hardware is EtherSVI, address is XXXX.XXXX.XXXX (bia XXXX.XXXX.XXXX)
Internet address will be autoconfigured from local DHCP pool
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not supported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:22:34, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 packets output, 0 bytes, 0 underruns
0 output errors, 2 interface resets
1704 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
GigabitEthernet1/0/1 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is XXXX.XXXX.XXXX (bia XXXX.XXXX.XXXX)
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is 10/100/1000BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:01:18, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 3000 bits/sec, 3 packets/sec
34620 packets input, 8502653 bytes, 0 no buffer
Received 4427 broadcasts (3590 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 3590 multicast, 0 pause input
0 input packets with dribble condition detected
62613 packets output, 37744232 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out

 

7) Type commands on Switch

int gigabitEthernet 1/0/1
	shutdown
	no shutdown
	exit
	
do sh ip dhcp binding

 

Check

Bindings from all pools not associated with VRF:
IP address      Client-ID/              Lease expiration        Type       State      Interface
                Hardware address/
                User name
192.168.1.10     01xx.xxxx.xxxx.xx       Infinite                Manual     Selecting  Unknown

 

9) Type commands on PC

ipconfig /renew

No IP delivered

 

10) Type commands on Switch

ip dhcp pool 192.168.1.0
	network 192.168.1.0 255.255.255.0
	default-router 192.168.1.1
	address 192.168.1.10 hardware-address 01xx.xxxx.xxxx.xx

% Address 192.168.1.10 is not valid in this pool.

	exit

int vlan 1
	ip address 192.168.1.2 255.255.255.0
	exit

 

11) Type commands on PC

ipconfig /renew

=> Got 192.168.1.3

 

12) Type commands on Switch and Check

(config)#do sh ip dhcp binding

Bindings from all pools not associated with VRF:
IP address      Client-ID/              Lease expiration        Type       State      Interface
                Hardware address/
                User name
192.168.1.1      XXXX.XXXX.XXXX          Apr 22 2021 12:57 AM    Automatic  Active     Vlan1
192.168.1.3      01xx.xxxx.xxxx.xx       Apr 22 2021 12:58 AM    Automatic  Active     Vlan1
192.168.1.10     01xx.xxxx.xxxx.xx       Infinite                Manual     Selecting  Unknown

(config)#do sh ip dhcp pool

Pool 192.168.1.0 :
 Utilization mark (high/low)    : 100 / 0
 Subnet size (first/next)       : 0 / 0
 Total addresses                : 254
 Leased addresses               : 2
 Excluded addresses             : 1
 Pending event                  : none
 1 subnet is currently in the pool :
 Current index        IP address range                    Leased/Excluded/Total
 192.168.1.4          192.168.1.1      - 192.168.1.254     4     / 3     / 254

Pool PC :
 Utilization mark (high/low)    : 100 / 0
 Subnet size (first/next)       : 0 / 0
 Total addresses                : 1
 Leased addresses               : 1
 Excluded addresses             : 1
 Pending event                  : none
 0 subnet is currently in the pool :
 Current index        IP address range                    Leased/Excluded/Total
 192.168.1.10         192.168.1.10     - 192.168.1.10      1     / 1     / 1  

 

So I have an IP address but not using the one that is matching to the correct fixed pool.

Labels:
0 Helpful
31 Replies 31

paul driver
VIP
VIP
In response to victorc7

‎04-21-2021 11:52 PM

Hello

why are you using ip address pool on the switch svi vlan 1 interface?

This needs to be a definitive local ip address not a pool as provided in my previous example.


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

victorc7
Level 1
Level 1
In response to paul driver

‎04-22-2021 04:29 AM

Hello,

Thanks for your help.

I tried :

 

ip address 192.168.0.4 255.255.255.0

=> No DHCP working anymore on PC

 

I tried :

ip address 192.168.1.1 255.255.255.0

=> Error conflict

then I tried :

ip address 192.168.1.2 255.255.255.0

=> No DHCP working for PC also

Also :

ip address dhcp

=> DHCP on PC still not working

So the only option left was to put ip pool 192.168.1.0 in vlan 1.

May I missed something?

0 Helpful

paul driver
VIP
VIP
In response to victorc7

‎04-22-2021 05:52 AM - edited ‎04-22-2021 05:52 AM

Hello

Afer revewing your toplogy,  Even is your clients can receive ip allocation from vlan 1 subnet 192.168.1.0/24, they WONT be able to access the internet UNLESS the ISP rtr is aware of the vlan1subnet and it configured to pefrom Network Translation for it as the cisco switch cannot do NAT

So the questions are:
Does the ISP provide dhcp already for subnet 192.168.0.0
Do you have admin righs to add a NAT statment for this vlan 1 subnet 192.168.1.0/24 on the ISP rtr?

 

 


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
0 Helpful

victorc7
Level 1
Level 1
In response to victorc7

‎04-22-2021 08:30 AM

Yes ISP Router is providing DHCP for 192.168.0.0/24, but because ISP can change so the Router, I want to assign IP by my CISCO Switch.

As I understand, it may be simplier to work with 2 vlans :

- one for ISP port with a fixed IP (or assigned by ISP Router)

- one for other ports with 192.168.1.0/24 network

And do inter-vlan routing group ?

0 Helpful

paul driver
VIP
VIP
In response to victorc7

‎04-23-2021 12:33 AM

Hello

@victorc7 wrote:

Yes ISP Router is providing DHCP for 192.168.0.0/24, but because ISP can change so the Router, I want to assign IP by my CISCO Switch.

As I understand, it may be simplier to work with 2 vlans :

Using two vlans can be achieved however as I have said the switch cannot perform Network Translation so the ISP rtrs NAT would need to be amended and its route table updated (via static route) for the additional vlan on the switch so clients in that vlan to be able to obtain internet connectivity.

Please review attached file:


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
Preview file
2 KB

victorc7
Level 1
Level 1
In response to paul driver

‎04-24-2021 04:27 PM

Thanks for your help.

 

On ISP Router, I have added a route for 192.168.1.0/24 to 192.168.0.4 (IP of G1/0/9 assigned by ISP DHCP, fixed).

For NAT, except if I want to access a Local Server from the Internet, is it really needed?

 

I did the command, so I am able to ping 192.168.0.2 from G1/0/9 Interface but not from VLAN 10 interface, despite proper Route.

Here is the new config :

Current configuration : 6692 bytes
!
! Last configuration change at 01:11:43 UTC Sun Apr 25 2021 by victorc
!
version 15.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname C1000-8P-E-2G-L
!
boot-start-marker
boot-end-marker

no aaa new-model
switch 1 provision c1000-8p-e-2g-l
system mtu routing 1500
ip routing
ip dhcp excluded-address 192.168.1.1 192.168.1.199
!
ip dhcp pool Netgear-WAX214
 host 192.168.1.5 255.255.255.0
 client-identifier 01xx.xxxx.xxxx.xx
 default-router 192.168.1.1 
!
ip dhcp pool PC-RJ45
 host 192.168.1.10 255.255.255.0
 client-identifier 01xx.xxxx.xxxx.xx
 default-router 192.168.1.1 
!
ip dhcp pool PC-Wifi
 host 192.168.1.11 255.255.255.0
 client-identifier 01xx.xxxx.xxxx.xx
 default-router 192.168.1.1 
!
ip dhcp pool 192.168.1.0
 network 192.168.1.0 255.255.255.0
 dns-server 192.168.1.1 
 default-router 192.168.1.1 
 lease 0 8
!
!
ip dhcp snooping vlan 1,1000
ip dhcp snooping
ip domain-name domain.com
ip name-server 8.8.8.8
ip name-server 8.8.4.4
ip igmp snooping vlan 10 last-member-query-count 2
ip igmp snooping vlan 10 last-member-query-interval 1000
ip igmp snooping vlan 1000 last-member-query-count 2
ip igmp snooping vlan 1000 last-member-query-interval 1000
!
!
spanning-tree mode rapid-pvst
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
!
interface GigabitEthernet1/0/1
 description Client ports
 switchport access vlan 10
 switchport mode access
 spanning-tree portfast edge
 spanning-tree bpduguard enable
!
interface GigabitEthernet1/0/2
 description Client ports
 switchport access vlan 10
 switchport mode access
 spanning-tree portfast edge
 spanning-tree bpduguard enable
!
interface GigabitEthernet1/0/3
 description Client ports
 switchport access vlan 10
 switchport mode access
 spanning-tree portfast edge
 spanning-tree bpduguard enable
!
interface GigabitEthernet1/0/4
 description Client ports
 switchport access vlan 10
 switchport mode access
 spanning-tree portfast edge
 spanning-tree bpduguard enable
!
interface GigabitEthernet1/0/5
 description Client ports
 switchport access vlan 10
 switchport mode access
 spanning-tree portfast edge
 spanning-tree bpduguard enable
!
interface GigabitEthernet1/0/6
 description Client ports
 switchport access vlan 10
 switchport mode access
 spanning-tree portfast edge
 spanning-tree bpduguard enable
!
interface GigabitEthernet1/0/7
 description Client ports
 switchport access vlan 10
 switchport mode access
 spanning-tree portfast edge
 spanning-tree bpduguard enable
!
interface GigabitEthernet1/0/8
 description Client ports
 switchport access vlan 10
 switchport mode access
 spanning-tree portfast edge
 spanning-tree bpduguard enable
!
interface GigabitEthernet1/0/9
 description Connection to ISP
 no switchport
 ip address dhcp
!
interface GigabitEthernet1/0/10
 switchport access vlan 1000
 switchport mode access
!
interface Vlan1
 ip address dhcp hostname c1000-8p
 shutdown
!
interface Vlan10
 description Client_vlan
 ip address 192.168.1.1 255.255.255.0
!
ip http server
ip http banner
ip http authentication local
ip http secure-server
ip http session-idle-timeout 300 
ip route 0.0.0.0 0.0.0.0 GigabitEthernet1/0/9 dhcp
!
!
!
!
line con 0
line vty 0 4
 login local
 transport input all
 transport output all
line vty 5 10
 login local
 transport input all
 transport output all
line vty 11 15
 login
 transport input none
!
end

image.png

 

Thanks

 

PS : dns-server seems not to be existing

0 Helpful

paul driver
VIP
VIP
In response to victorc7

‎04-25-2021 01:15 AM - edited ‎04-25-2021 01:15 AM

Hello

 

@victorc7 wrote:

I did the command, so I am able to ping 192.168.0.2 from G1/0/9 Interface but not from VLAN 10 interface,

 

Is vlan 10 interface up?

sh ip int brief

 

 

@victorc7 wrote:

On ISP Router, I have added a route for 192.168.1.0/24 to 192.168.0.4 (IP of G1/0/9 assigned by ISP DHCP, fixed).

For NAT, except if I want to access a Local Server from the Internet, is it really needed?

If you wish to access to a specific server from the internet then you need to create a static nat statement for that on your ISP rtr.

 

 

@victorc7 wrote:

PS : dns-server seems not to be existing

So in your dhcp pool remove the dns-server and apply the import all option

example:
ip dhcp pool 192.168.1.0
no dns-server 192.168.1.1
import all

 


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

victorc7
Level 1
Level 1
In response to paul driver

‎04-25-2021 01:21 AM 

C1000-8P-E-2G-L#sh ip int brief
Interface              IP-Address      OK? Method Status                Protocol
Vlan1                  unassigned      YES NVRAM  administratively down down
Vlan10                 192.168.1.1     YES NVRAM  up                    up
GigabitEthernet1/0/1   unassigned      YES unset  up                    up
GigabitEthernet1/0/2   unassigned      YES unset  up                    up
GigabitEthernet1/0/3   unassigned      YES unset  up                    up
GigabitEthernet1/0/4   unassigned      YES unset  down                  down
GigabitEthernet1/0/5   unassigned      YES unset  down                  down
GigabitEthernet1/0/6   unassigned      YES unset  down                  down
GigabitEthernet1/0/7   unassigned      YES unset  down                  down
GigabitEthernet1/0/8   unassigned      YES unset  down                  down
GigabitEthernet1/0/9   192.168.0.4     YES DHCP   up                    up
GigabitEthernet1/0/10  unassigned      YES unset  down                  down

Here is the ping after removing dns-server :

C1000-8P-E-2G-L#ping ip 192.168.0.2 source gigabitEthernet 1/0/9
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.0.2, timeout is 2 seconds:
Packet sent with a source address of 192.168.0.4
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 2/2/3 ms
C1000-8P-E-2G-L#ping ip 192.168.0.2 source vlan 10
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.0.2, timeout is 2 seconds:
Packet sent with a source address of 192.168.1.1
.....
Success rate is 0 percent (0/5)

paul driver
VIP
VIP
In response to victorc7

‎04-25-2021 01:54 AM - edited ‎04-25-2021 01:54 AM

Hello
FYI -Removing the dns-server from the dhcp scope wont rectify a failing icmp sourced from vlan 10, Can you verify your static route on the ISP rtr for 192.168.1.0/24?


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

victorc7
Level 1
Level 1
In response to paul driver

‎04-25-2021 02:15 AM

Hello,

Sure, here is the config on ISP Router :

image.png

Thanks

0 Helpful

paul driver
VIP
VIP
In response to victorc7

‎04-25-2021 02:34 AM - edited ‎04-25-2021 02:36 AM

Hello
So it does look like the rtr has a route  for  192.168.10/24 towards the switch however icmp is failing

Can you please make the following changes in theory it shouldn't make any difference but i am wondering if the switch for some reason doesn't like having a routed port, Just make sure the switch obtains the same ip address if it doesn't then you would need to update the static route on the ISP


switch

conf t

default interface gig1/0/9
interface gig1/0/9

shut
switchport mode access
spanning-tree portfast edge
no shut

int vlan 1
ip address dhcp
no shut

 

no ip route 0.0.0.0 0.0.0.0 GigabitEthernet1/0/9 dhcp
ip route 0.0.0.0 0.0.0.0 vlan 1 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
0 Helpful

victorc7
Level 1
Level 1
In response to paul driver

‎04-25-2021 03:37 AM

With this new config, Switch is not able to get IP from ISP DHCP.

 

C1000-8P-E-2G-L#sh ip int brief
Interface              IP-Address      OK? Method Status                Protocol
Vlan1                  unassigned      YES DHCP   up                    up
Vlan10                 192.168.1.1     YES NVRAM  up                    up
GigabitEthernet1/0/1   unassigned      YES unset  up                    up
GigabitEthernet1/0/2   unassigned      YES unset  up                    up
GigabitEthernet1/0/3   unassigned      YES unset  up                    up
GigabitEthernet1/0/4   unassigned      YES unset  down                  down
GigabitEthernet1/0/5   unassigned      YES unset  down                  down
GigabitEthernet1/0/6   unassigned      YES unset  down                  down
GigabitEthernet1/0/7   unassigned      YES unset  down                  down
GigabitEthernet1/0/8   unassigned      YES unset  down                  down
GigabitEthernet1/0/9   unassigned      YES unset  up                    up
GigabitEthernet1/0/10  unassigned      YES unset  down                  down
C1000-8P-E-2G-L#sh vl
C1000-8P-E-2G-L#sh vlan

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
1    default                          active    Gi1/0/9
10   Client_vlan                      active    Gi1/0/1, Gi1/0/2, Gi1/0/3
                                                Gi1/0/4, Gi1/0/5, Gi1/0/6
                                                Gi1/0/7, Gi1/0/8
1002 fddi-default                     act/unsup
1003 token-ring-default               act/unsup
1004 fddinet-default                  act/unsup
1005 trnet-default                    act/unsup

VLAN Type  SAID       MTU   Parent RingNo BridgeNo Stp  BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1    enet  100001     1500  -      -      -        -    -        0      0
10   enet  100010     1500  -      -      -        -    -        0      0
1002 fddi  101002     1500  -      -      -        -    -        0      0
1003 tr    101003     1500  -      -      -        -    -        0      0
1004 fdnet 101004     1500  -      -      -        ieee -        0      0
1005 trnet 101005     1500  -      -      -        ibm  -        0      0

Primary Secondary Type              Ports
------- --------- ----------------- ------------------------------------------

C1000-8P-E-2G-L#sh ip rou
C1000-8P-E-2G-L#sh ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
       a - application route
       + - replicated route, % - next hop override, p - overrides from PfR

Gateway of last resort is not set

      192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C        192.168.1.0/24 is directly connected, Vlan10
L        192.168.1.1/32 is directly connected, Vlan10

Here is extract of running config.

interface GigabitEthernet1/0/1
 description Client ports
 switchport access vlan 10
 switchport mode access
 spanning-tree portfast edge
 spanning-tree bpduguard enable
!

interface GigabitEthernet1/0/9
 switchport mode access
 spanning-tree portfast edge
!
interface Vlan1
 ip address dhcp
!
interface Vlan10
 description Client_vlan
 ip address 192.168.1.1 255.255.255.0
!
ip http server
ip http banner
ip http authentication local
ip http secure-server
ip http session-idle-timeout 300
ip route 0.0.0.0 0.0.0.0 Vlan1 dhcp
!
!

PS : I had to save / reload in order to remove old route.
I tried also reload after this new config.

0 Helpful

paul driver
VIP
VIP
In response to victorc7

‎04-25-2021 04:57 AM

Hello

Do you have dhcp snooping enabled, if so make sure the physical port that connects to the rtr is trusted


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

victorc7
Level 1
Level 1
In response to paul driver

‎04-25-2021 05:44 AM 

C1000-8P-E-2G-L(config)#do sh ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
       a - application route
       + - replicated route, % - next hop override, p - overrides from PfR

Gateway of last resort is 192.168.0.2 to network 0.0.0.0

S*    0.0.0.0/0 [0/0] via 192.168.0.2
      192.168.0.0/24 is variably subnetted, 2 subnets, 2 masks
C        192.168.0.0/24 is directly connected, Vlan1
L        192.168.0.4/32 is directly connected, Vlan1
      192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C        192.168.1.0/24 is directly connected, Vlan10
L        192.168.1.1/32 is directly connected, Vlan10
0 Helpful

victorc7
Level 1
Level 1
In response to victorc7

‎04-25-2021 05:40 AM

Hello,

 

Yes it works better to get an IP with G1/0/9 snooping trusted Thanks.

How ever, still not able to communicate :

C1000-8P-E-2G-L(config)#do sh ip int brief
Interface              IP-Address      OK? Method Status                Protocol
Vlan1                  192.168.0.4     YES DHCP   up                    up
Vlan10                 192.168.1.1     YES NVRAM  up                    up
GigabitEthernet1/0/1   unassigned      YES unset  up                    up
GigabitEthernet1/0/2   unassigned      YES unset  up                    up
GigabitEthernet1/0/3   unassigned      YES unset  up                    up
GigabitEthernet1/0/4   unassigned      YES unset  down                  down
GigabitEthernet1/0/5   unassigned      YES unset  down                  down
GigabitEthernet1/0/6   unassigned      YES unset  down                  down
GigabitEthernet1/0/7   unassigned      YES unset  down                  down
GigabitEthernet1/0/8   unassigned      YES unset  down                  down
GigabitEthernet1/0/9   unassigned      YES unset  up                    up
GigabitEthernet1/0/10  unassigned      YES unset  down                  down
C1000-8P-E-2G-L(config)#do ping ip 192.168.0.2 source vlan 1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.0.2, timeout is 2 seconds:
Packet sent with a source address of 192.168.0.4
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 2/2/3 ms
C1000-8P-E-2G-L(config)#do ping ip 192.168.0.2 source vlan 10
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.0.2, timeout is 2 seconds:
Packet sent with a source address of 192.168.1.1
.....
Success rate is 0 percent (0/5)
C1000-8P-E-2G-L(config)#do ping ip 8.8.8.8 source vlan 1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds:
Packet sent with a source address of 192.168.0.4
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 11/11/13 ms
C1000-8P-E-2G-L(config)#do ping ip 8.8.8.8 source vlan 10
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds:
Packet sent with a source address of 192.168.1.1
.....
Success rate is 0 percent (0/5)

Regards

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