On Tue, Jan 20, 2009 at 02:25:33PM -0800, duxbuz wrote:
> Thanks for reply. Both of you.
> 
> I pinged from client to router, on both routers interfaces 172.16.0.254 and
> 192.168.0.254.
> 
> # tcpdump -n -e -ttt -i pflog0
> tcpdump: listening on pflog0, link-type PFLOG
> Jan 20 23:10:58.644031 rule 0/(match) pass in on rl0: 192.168.0.10 >
> 192.168.0.254: icmp: echo request (DF)
> Jan 20 23:11:06.977914 rule 0/(match) pass in on rl0: 192.168.0.10 >
> 172.16.0.254: icmp: echo request (DF)
> Jan 20 23:11:20.879285 rule 0/(match) pass in on em0: 172.16.0.6.1948 >
> 212.58.250.36.443: udp 16
> Jan 20 23:11:20.879301 rule 1/(match) pass out on em0: 172.16.0.6.1948 >
> 212.58.250.36.443: udp 16
> 
> Going back to what Martin said, I can ping to either  client, on either
> subnet, from router. I can even ping through router from 172 subnet to 192
> subnet, just not the other way. And it doesn't look like there are any rules
> in the Iptables ruleset.

It smells of routing.  Check the tables on each client and see if
they're going through a different gateway than you expect.

-- 
Jason Dixon
DixonGroup Consulting
http://www.dixongroup.net/

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