PBR problem

Answered Question
Nov 25th, 2008
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Good evening everybody . I have some strange problem with PBR setup on 3825 .


Here is the part of the config :



interface GigabitEthernet0/0.X

encapsulation dot1Q X

ip address x.x.x.x

ip flow ingress

ip flow egress

ip nat inside

ip virtual-reassembly

zone-member security DMZ

ip policy route-map fbsd

!



route-map fbsd deny 5

match ip address fbsd_exc

!

route-map fbsd permit 10

match ip address fbsd1

set ip next-hop 1.1.1.2

!

route-map fbsd permit 20

match ip address fbsd2

set ip next-hop 1.1.1.3

!


And everything works fine , but after router restart i have to manually ping every next-hop from the router to make PBR work . Is there something ive missed ? Thanks in advance , Dmitriy.

Correct Answer by Giuseppe Larosa about 8 years 8 months ago

Hello Dmitriy,


>> after router restart i have to manually ping every next-hop from the router to make PBR work


After reload the ARP cache of your router is empty and the router doesn't know the MAC address of the next-hops.

You could:

use BFD to create a communication with the next-hops (preferred)


or hardcode the MAC address


Hope to help

Giuseppe


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Correct Answer
Giuseppe Larosa Tue, 11/25/2008 - 07:27
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Hello Dmitriy,


>> after router restart i have to manually ping every next-hop from the router to make PBR work


After reload the ARP cache of your router is empty and the router doesn't know the MAC address of the next-hops.

You could:

use BFD to create a communication with the next-hops (preferred)


or hardcode the MAC address


Hope to help

Giuseppe


mtebaccount Tue, 11/25/2008 - 08:03
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Hello, Giuseppe.


Actually i can see my next-hop mac adresses in arp table after reload , so i guess there is something else .


EDIT:

Actually my mistake , this really was the arp problem . Thanks for help.



Thanks in advance. Dmitriy.

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