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pf rule on carp interface?
- To: misc_(_at_)_openbsd_(_dot_)_org
- Subject: pf rule on carp interface?
- From: Diana Eichert <deichert_(_at_)_wrench_(_dot_)_com>
- Date: Thu, 17 Jun 2004 10:37:48 -0600 (MDT)
I've setup CARP on 2 systems for failover RADIUS servers. I wanted to
filter on the carp0 interface to allow RADIUS and ICMP packets destined
for the carp0 address.
However this rule
pass in on carp0 inet proto icmp from any to carp0
fails to allow ICMP packets through when pinging the carp0 IP address
Running tcpdump I see the ping coming in on the fxp0 interface. I hadn't
allowed ICMP to the fxp0 address. When I enabled this rule
pass in on fxp0 inet proto icmp from any to carp0
ICMP packets started passing through.
So my questions is, can't you filter on a carp interface only? Or do I
have to filter on the underlying physical interface?
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