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What is processed first DHCP, PBR ?

rouellette
Level 1
Level 1

We have a combination of policy based routing and IP helper (DHCP relay) configured on a router interface. Since client DHCP stations use all 0's broadcast, there is an impact, depending on what order the router processes the mentioned 2 sevices.

#1 If PBR is 1st, then the broadcast if not satisfied by the PBR ACL will eventually hit default routing and get dropped because it never hits the ip helper.

#2 If IP HELPER is processed 1st then broadcasts should work as hoped

Can anybody confirm ?

1 Reply 1

owillins
Level 6
Level 6

Please refer the following link for more information on Policy-based routing.

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fqos_c/fqcprt1/qcfpbr.pdf