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RE: [PLUG] [mtu discovery] Apache server not serving...
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I did another test that I wasn't expecting to work, but it did.
I did a ping from my FC3 server to our RH7.2 server, and i was able
to see both sides of the ICMP packet, so the firewall is allowing ICMP
packets through (at least ping).
ICMP's appears to make it through the firewall.
I will try to create a "safe" tcpdump from both sides that I
can post that might help figure this out.
George
> -----Original Message-----
> From: plug-bounces@lists.phillylinux.org
> [mailto:plug-bounces@lists.phillylinux.org]On Behalf Of George Gallen
> Sent: Friday, May 12, 2006 1:57 PM
> To: Philadelphia Linux User's Group Discussion List
> Subject: RE: [PLUG] [mtu discovery] Apache server not serving...
>
> In the mean time, I set "/proc/sys/net/ipv4/ip_no_pmtu_disc" to 1
> to disable the feature, I did this on both the client machine (FC3)
> and our server machine (RH7.2).
>
> Packets go from Server ->corpfirewall->Internet->Comcast->Client
>
> Both sides have the mtu set for 1500, should this not be all
> to disable
> this feature? so it shouldn't matter what the firewall does?
>
> I'm still having hanging issues. Oh well.
>
> George
>
> >
> > After doing a little reading: http://www.ietf.org/rfc/rfc2923.txt
> > Yes, this does sound like the MTU problem. I tried changing the MTU
> > to 1000, but it still hangs.
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