Ping and access

Bab L · ‎03-30-2017

Hi.

We have a 4500 switch as a core connected to a number of switches.

When we ping from our system to one of the switches ping doesn't work.

When you ping from the core to the device it works, and then the ping from our system works too for around a minute.

So, pings from a system work only if a ping form the core is initiated.

Any ideas?

Philip D'Ath · ‎03-30-2017

All in one vlan? Multiple vlans? What is acting as the default gateway?

Bab L · ‎03-30-2017

Hi Phillip.

Multpile VLANs and vrfs.

All vrf's can access all other vrfs. They do not have similar IP addresses.

Here is config:

!
!
ip vrf B-VRF
rd 302:1
route-target export 302:1
route-target import 305:1
route-target import 308:1
route-target import 301:1
route-target import 309:1
!
ip vrf E-VRF
rd 307:1
!
ip vrf F-VRF
rd 305:1
route-target export 305:1
route-target import 302:1
route-target import 309:1
!
ip vrf L-VRF
rd 304:1
!
ip vrf MGMT-VRF
rd 301:1
route-target export 301:1
route-target import 302:1
route-target import 308:1
route-target import 309:1
!
ip vrf P-VRF
rd 306:1
!
ip vrf PW-VRF
rd 303:1
!
ip vrf S-VRF
rd 308:1
route-target export 308:1
route-target import 302:1
route-target import 305:1
route-target import 301:1
route-target import 309:1
!
ip vrf TEMP-VRF
rd 309:1
route-target export 309:1
route-target import 305:1
route-target import 308:1
route-target import 301:1
route-target import 302:1

interface Vlan301
description MGMT-VRF
ip vrf forwarding MGMT-VRF
ip address 172.17.1.1 255.255.255.0
!
interface Vlan302
ip vrf forwarding B-VRF
ip address 172.17.2.1 255.255.255.0
!
interface Vlan303
ip vrf forwarding B-VRF
ip address 172.17.3.1 255.255.255.0
!
interface Vlan304
ip vrf forwarding B-VRF
ip address 172.17.4.1 255.255.255.0
!
interface Vlan305
no ip address
!

interface Vlan325
ip vrf forwarding F-VRF
ip address 172.17.25.1 255.255.255.0
!
interface Vlan900
ip vrf forwarding TEMP-VRF
ip address 192.168.100.211 255.255.255.0
!
router bgp 1
bgp log-neighbor-changes
!
address-family ipv4 vrf B-VRF
redistribute connected
redistribute static
exit-address-family
!
address-family ipv4 vrf F-VRF
redistribute connected
redistribute static
exit-address-family
!
address-family ipv4 vrf MGMT-VRF
redistribute connected
redistribute static
exit-address-family
!
address-family ipv4 vrf S-VRF
redistribute connected
redistribute static
exit-address-family
!
address-family ipv4 vrf TEMP-VRF
redistribute connected
redistribute static
exit-address-family

we just need access from B, TEMP, MGMT at the moment.