Reflexive ACL on 3750 switch

From: Rik Guyler (rik@guyler.net)
Date: Thu Nov 02 2006 - 20:00:21 ART


I'm configuring a reflexive ACL on a 3750 and I'm having some problems
getting all traffic to be recognized by the reflection. The reflexive ACL
is applied inbound on a pair of internal L3 interfaces and the evaluate ACL
is applied inbound on an external L3 port-channel interface. I get some
hits in the reflexive ACL that gets created automatically but it won't
create entries for every session. If I apply both ACLs on the same
interface (the external port-channel interface) but in different directions
as the configuration guides specify, I don't get any matches.

I'm thinking this might be a bug but I've also considered the possibility
that the problem is trying to do this on a port-channel interface. Anybody
have any experience with this?

Here's the config:

interface Port-channel1
 description outside network
 no switchport
 ip address 10.150.252.2 255.255.255.252
 ip access-group inbound in

interface GigabitEthernet1/0/25
 description inside network
 no switchport
 ip address 10.150.252.6 255.255.255.252
 ip summary-address eigrp 1 10.150.0.0 255.255.0.0 5
 ip access-group outbound in
!
interface GigabitEthernet1/0/26
 description inside network
 no switchport
 ip address 10.150.252.10 255.255.255.252
 ip summary-address eigrp 1 10.150.0.0 255.255.0.0 5
 ip access-group outbound in
!
interface GigabitEthernet1/0/27
 description outside network
 no switchport
 no ip address
 channel-group 1 mode desirable
!
interface GigabitEthernet1/0/28
 description outside network
 no switchport
 no ip address
 channel-group 1 mode desirable

ip access-list extended inbound
 permit ospf any any
 permit icmp any any
 evaluate tcptraffic

ip access-list extended outbound
 permit tcp any any reflect tcptraffic

Thanks!

Rik



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