03-18-2016 03:17 PM - edited 03-08-2019 05:02 AM
I have one I think should be really simple but I can fix it to save my life....
Running a little Cisco 1811 router.
Int fa0 = Outside interface to Cable Modem
Int vlan1921 = SVI for the local LAN
Everything works swimmingly on vlan 1921. No issue communicating between device or to the internet.
If I create a loopback or another SVI interface I can ping the 1921 SVI Router IP, but I cannot ping any devices behind the SVI...
If I try to ping the router ip of another SVI or loopback from a device on the 1921 vlan it times out.
Thoughts?
Show output and running configuration below...
03-18-2016 03:58 PM
R1811#show 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
+ - replicated route, % - next hop override
Gateway of last resort is 73.220.84.1 to network 0.0.0.0
S* 0.0.0.0/0 [254/0] via 73.220.84.1
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 10.10.10.0/24 is directly connected, Loopback10
L 10.10.10.10/32 is directly connected, Loopback10
69.0.0.0/32 is subnetted, 1 subnets
S 69.252.97.6 [254/0] via 73.220.84.1, FastEthernet0
73.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 73.220.84.0/23 is directly connected, FastEthernet0
L 73.220.84.54/32 is directly connected, FastEthernet0
172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks
S 172.16.5.0/24 is directly connected, Vlan114
C 172.16.254.0/24 is directly connected, Vlan114
L 172.16.254.1/32 is directly connected, Vlan114
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, Vlan1921
L 192.168.1.1/32 is directly connected, Vlan1921
R1811#ping 192.168.1.253 source
R1811#ping 192.168.1.253 source vlan 114
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.253, timeout is 2 seconds:
Packet sent with a source address of 172.16.254.1
.....
Success rate is 0 percent (0/5)
R1811#show vlan-s
R1811#show vlan-switch brief
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa7
114 Management active Fa4
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
1921 192.168.1.x/24 active Fa2, Fa3, Fa5, Fa6, Fa8
R1811#show ip int brief
Interface IP-Address OK? Method Status Protocol
Async1 unassigned YES unset down down
FastEthernet0 73.220.84.54 YES DHCP up up
FastEthernet1 unassigned YES NVRAM administratively down down
FastEthernet2 unassigned YES unset up down
FastEthernet3 unassigned YES unset up up
FastEthernet4 unassigned YES unset up up
FastEthernet5 unassigned YES unset up down
FastEthernet6 unassigned YES unset up down
FastEthernet7 unassigned YES unset up down
FastEthernet8 unassigned YES unset up up
FastEthernet9 unassigned YES unset up down
Loopback10 10.10.10.10 YES NVRAM up up
NVI0 10.10.10.10 YES unset up up
Vlan1 unassigned YES unset up down
Vlan114 172.16.254.1 YES NVRAM up up
Vlan1921 192.168.1.1 YES NVRAM up up
R1811#
R1811#show run
Building configuration...
Current configuration : 4839 bytes
!
! Last configuration change at 14:23:01 Pacific Fri Mar 18 2016 by will
! NVRAM config last updated at 22:21:10 Pacific Thu Mar 17 2016 by will
! NVRAM config last updated at 22:21:10 Pacific Thu Mar 17 2016 by will
version 15.1
service timestamps debug datetime msec
service timestamps log datetime localtime
service password-encryption
service sequence-numbers
!
hostname R1811
!
boot-start-marker
boot system flash:c181x-adventerprisek9-mz.151-4.M8.bin
boot-end-marker
!
!
logging buffered 4096 informational
enable secret 5 $xxx
!
no aaa new-model
!
clock timezone Pacific -8 0
crypto pki token default removal timeout 0
!
!
dot11 syslog
ip source-route
!
!
no ip dhcp use vrf connected
!
ip dhcp pool 192.168.1.x/24
network 192.168.1.0 255.255.255.0
default-router 192.168.1.1
dns-server 8.8.8.8
!
!
!
ip cef
ip domain name hartigan.com
ip ips config location flash:ips retries 1
ip ips name iosips
!
ip ips signature-category
category all
retired true
category ios_ips advanced
retired false
enabled true
category ios_ips basic
retired true
enabled false
!
ip inspect max-incomplete low 60
ip inspect max-incomplete high 100
ip inspect name Firewall tcp router-traffic
ip inspect name Firewall udp router-traffic
ip inspect name Firewall icmp router-traffic
ip inspect name Firewall tftp
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
license udi pid CISCO1811/K9 sn FTX1118Z0YQ
archive
log config
hidekeys
vtp mode transparent
username will privilege 15 password 7 xxx
!
crypto key pubkey-chain rsa
named-key realm-cisco.pub signature
address 64.99.80.30
key-string
30820122 300D0609 2A864886 F70D0101 01050003 82010F00 3082010A 02820101
00C19E93 A8AF124A D6CC7A24 5097A975 206BE3A2 06FBA13F 6F12CB5B 4E441F16
17E630D5 C02AC252 912BE27F 37FDD9C8 11FC7AF7 DCDD81D9 43CDABC3 6007D128
B199ABCB D34ED0F9 085FADC1 359C189E F30AF10A C0EFB624 7E0764BF 3E53053E
5B2146A9 D7A5EDE3 0298AF03 DED7A5B8 9479039D 20F30663 9AC64B93 C0112A35
FE3F0C87 89BCB7BB 994AE74C FA9E481D F65875D6 85EAF974 6D9CC8E3 F0B08B85
50437722 FFBE85B9 5E4189FF CC189CB9 69C46F9C A84DFBA5 7A0AF99E AD768C36
006CF498 079F88F8 A3B3FB1F 9FB7B3CB 5539E1D1 9693CCBB 551F78D2 892356AE
2F56D826 8918EF3C 80CA4F4D 87BFCA3B BFF668E9 689782A5 CF31CB6E B4B094D3
F3020301 0001
quit
!
!
vlan 114
name Management
!
vlan 1921
name 192.168.1.x/24
!
!
!
!
!
!
!
!
interface Loopback10
ip address 10.10.10.10 255.255.255.0
!
interface FastEthernet0
ip address dhcp
ip access-group Firewall-Remark in
ip nat outside
ip ips iosips in
ip inspect Firewall out
ip virtual-reassembly in max-reassemblies 64
load-interval 30
duplex auto
speed auto
!
interface FastEthernet1
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet2
switchport access vlan 1921
no ip address
spanning-tree portfast
!
interface FastEthernet3
switchport access vlan 1921
no ip address
spanning-tree portfast
!
interface FastEthernet4
switchport access vlan 114
no ip address
!
interface FastEthernet5
switchport access vlan 1921
no ip address
spanning-tree portfast
!
interface FastEthernet6
switchport access vlan 1921
no ip address
spanning-tree portfast
!
interface FastEthernet7
switchport mode trunk
no ip address
!
interface FastEthernet8
switchport access vlan 1921
no ip address
spanning-tree portfast
!
interface FastEthernet9
switchport access vlan 10
no ip address
spanning-tree portfast
!
interface Vlan1
no ip address
!
interface Vlan114
ip address 172.16.254.1 255.255.255.0
ip nat inside
ip virtual-reassembly in
!
interface Vlan1921
ip address 192.168.1.1 255.255.255.0
ip nat inside
ip virtual-reassembly in
!
interface Async1
no ip address
encapsulation slip
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
ip nat inside source list NAT interface FastEthernet0 overload
!
ip access-list extended Firewall-Remark
permit udp any eq bootps any eq bootpc
permit icmp any any time-exceeded
permit icmp any any unreachable
remark Implicit deny for IP Inspect
deny ip any any log
ip access-list extended NAT
permit ip 192.168.1.0 0.0.0.255 any
permit ip 10.1.10.0 0.0.0.255 any
permit ip host 172.16.1.1 any
permit ip 172.16.254.0 0.0.0.255 any
!
logging host 192.168.1.13 transport tcp port 5544
!
!
!
!
!
!
control-plane
!
!
!
line con 0
logging synchronous
length 30
line 1
modem InOut
stopbits 1
speed 115200
flowcontrol hardware
line aux 0
line vty 0 4
logging synchronous
login local
length 40
transport input ssh
line vty 5 15
logging synchronous
login local
length 40
transport input ssh
!
ntp server 97.107.128.58
end
03-18-2016 04:08 PM
RESOLVED.
In doing ping tests I somehow managed to pick the ONLY two devices in my entire house that are not responding to pings across the SVI's. I have since tested other IP's and can successfully route between SVI's.
Issue to be troubleshooted local to each device that won't respond... Go figure its my FTP/TFTP server I can't reach of all things...
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