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January 30th, 2023 07:00

S4148 OS 10.5 - Cannot pass inter-VLAN routing on instance vrf

I can't get routing to pass through the vrf instance

show ip route vrf Trasporto_Core
S 10.128.0.0/24 via 10.128.254.38 vlan3048 1/0 -11:-13:-1
C 10.128.254.0/24 via 10.128.254.5 vlan3048 0/0 48 weeks 3 days 00:13:17
C 10.212.0.0/29 via 10.212.0.2 vlan3950 0/0 65 weeks 6 days 23:34:31
S 10.240.8.64/26 via 10.212.0.5 vlan3950 1/0 50 weeks 6 days 12:25:20


show running-configuration interface vlan 3950
!
interface vlan3950
description Trasporto_Core.DTC_vs_Core_Network_10.212.0.0/29
no shutdown
ip vrf forwarding Trasporto_Core
ip address 10.212.0.2/29
!
vrrp-group 151
virtual-address 10.212.0.1
advertise-interval centisecs 1000
no preempt

show running-configuration interface vlan 3048
!
interface vlan3048
description Trasporto.Privato_Vs._Apparati.DataCenter
no shutdown
ip vrf forwarding Trasporto_Core
ip address 10.128.254.5/24
!
vrrp-group 140
virtual-address 10.128.254.4
advertise-interval centisecs 1000
no preempt

Traceroute from 10.240.8.64/26 stop on interface vlan3950
Traceroute from 10.128.0.0/24 stop on interface vlan3048

It seems the switch is not passing inter-vlan traffic, but on vlan IP is assigned and interface is in "no shutdown" state


 

Moderator

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9.3K Posts

January 30th, 2023 12:00

Simone Barucco,

 

Just a thought, did you happen to run the redistribute connected command, after connecting? 

 

Moderator

 • 

9.3K Posts

January 30th, 2023 12:00

Simone Barucco,

 

Would you confirm if this is the initial configuration of the switch, as you will likely need to call in for assistance. If not then I would say we definitly need additional information, such as the results of show vrrp as well as the results of show tech-support. You can upload the results on upload. dell. com, then private message me the svc tag used to upload, so I can locate the logs. I can then review them for you to see if I can spot anything.

 

Let me know.

 

Moderator

 • 

4.2K Posts

January 30th, 2023 13:00

Hello Simone Barucco,

 

Can I clarify this is a new configuration since things have change from initial configuration?

 

Could you log the output of this command:

 

console#show tech-support

 

Then upload here, https://upload.dell.com/,  under the service tag of the switch and Private Message Chris and myself  the service tag so that it can be retrieved for review.

 

January 30th, 2023 13:00

The configuration has changed since the initial installation

show vrrp vrf Trasporto_Core brief
Interface Group Priority Prempt State Version Master addr(s) Virtual addr

vlan3048 IPv4 140 100 false master-state 3 10.128.254.5 10.128.254.4

vlan3950 IPv4 151 100 false master-state 3 10.212.0.2 10.212.0.1

January 30th, 2023 13:00

Hi,
in this configuration i am using only static routes

January 31st, 2023 05:00

I actually found that the traffic works in one direction now, whereas before it stopped at the switch.


Traceroute from IP 10.128.0.15 (Windows Machine) to 10.240.8.100
Tracing route to 10.240.8.100 over a maximum of 30 hops
1 <1 ms <1 ms <1 ms 10.128.0.241
2 4 ms 4 ms 4 ms 10.128.254.5 (Dell - vlan 3048)
3 5 ms 5 ms 4 ms 10.212.0.5
4 6 ms 3 ms 3 ms 1.0.236.237
5 3 ms 3 ms 5 ms 10.240.8.100

Trace complete.

Traceroute from IP 10.240.8.100 (Linux Machine) to 10.128.0.15
traceroute to 10.128.0.15 (10.128.0.15), 30 hops max, 60 byte packets
1 10.240.8.65 (10.240.8.65) 0.227 ms 0.216 ms 0.204 ms
2 node-lhu.pool-1-0.dynamic.totinternet.net (1.0.236.210) 16.685 ms 16.708 m s 16.700 ms
3 10.212.0.3 (10.212.0.3) 14.206 ms 14.260 ms 14.063 ms  (Dell - vlan 3950)
4 * * *
5 * * *
6 * * *

Moderator

 • 

9.3K Posts

January 31st, 2023 07:00

Simone,

 

After reviewing the logs I am not seeing anything standing out. What I would suggest, based on your warranty, is to call in to support so they can directly analyze the issue with you. 

 

 

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