Re: Tcpdump filters, problem with UDP and 2.4.x

From: James Stevenson (
Date: Mon Oct 15 2001 - 04:16:13 EST

----- Original Message -----
From: "David Ford" <>
To: <>
Sent: Saturday, October 13, 2001 9:12 PM
Subject: Tcpdump filters, problem with UDP and 2.4.x

> I see a lot of "UDP: bad checksum. ..." between two of my servers. I
> haven't attached a tcpdump output of the packets because a) the packets
> between machine A and B travel through a GRE tunnel and b) does anyone
> have tcpdump filters or know how to finagle tcpdump into dumping the
> embedded packet instead of the GRE header'd packet?

id this for NFS udp traffic ?
if it is then you will see it i have seen this on both 2.2.x and 2.4.x
it only shows up on the nfs server side for me though.

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This archive was generated by hypermail 2b29 : Mon Oct 15 2001 - 21:00:56 EST