Dhcp: Ip length 44 disagrees with bytes received 46.

[Oliver Falk]

Hi lkml!

Maybe it's not good to ask the lkml, but since there are so many experts
here, it makes sense to me.

I have a dhcp-server running with 2.6.10 (had it running with
2.6.{1,2,3,4,5,6,7,8,9} as well) and the dhcpd logs all the time:

<snip>
Dec 26 07:22:11 brain dhcpd: ip length 44 disagrees with bytes received 46.
Dec 26 07:22:11 brain dhcpd: accepting packet with data after udp payload.
Dec 26 07:22:11 brain dhcpd: ip length 44 disagrees with bytes received 46.
Dec 26 07:22:11 brain dhcpd: accepting packet with data after udp payload.
Dec 26 07:22:51 brain dhcpd: ip length 44 disagrees with bytes received 46.
Dec 26 07:22:51 brain dhcpd: accepting packet with data after udp payload.
Dec 26 07:22:51 brain dhcpd: ip length 44 disagrees with bytes received 46.
Dec 26 07:22:51 brain dhcpd: accepting packet with data after udp payload.
Dec 26 07:23:11 brain dhcpd: ip length 44 disagrees with bytes received 46.
Dec 26 07:23:11 brain dhcpd: accepting packet with data after udp payload.
Dec 26 07:23:11 brain dhcpd: ip length 44 disagrees with bytes received 46.
Dec 26 07:23:11 brain dhcpd: accepting packet with data after udp payload.
</snip>

Now my question; Is this normal? Where does it come from? Why does it
happen? For me this seems strange...

FYI. I have the server running with the above mentioned kernel and Fedora
Core Development Tree (dhcpd 3.0.1).

Any help is welcome!

Best regards,
 Oliver

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