Re: dhcpd: bad IP checksums on current

2011-04-09 Thread Mattieu Baptiste
On Sun, Apr 10, 2011 at 3:28 AM, Matthew Dempsky wrote: > There have been some changes to how checksums are handled in the > kernel (in particular with bridges), so I can believe this was > affected. > > Try running "tcpdump -s 65535 -v udp port bootps or udp port bootpc" > on various interfaces o

Re: dhcpd: bad IP checksums on current

2011-04-09 Thread Mattieu Baptiste
On Sun, Apr 10, 2011 at 2:47 AM, Kenneth R Westerback wrote: > On Sat, Apr 09, 2011 at 01:15:42PM +0200, Mattieu Baptiste wrote: >> On Sat, Apr 9, 2011 at 1:07 PM, Mattieu Baptiste wrote: >> > Hi all, >> > >> > I just upgraded my soekris this morning. My clients doesn't receive >> > DHCP response

Re: dhcpd: bad IP checksums on current

2011-04-09 Thread Matthew Dempsky
There have been some changes to how checksums are handled in the kernel (in particular with bridges), so I can believe this was affected. Try running "tcpdump -s 65535 -v udp port bootps or udp port bootpc" on various interfaces on both the server and the clients. It should warn if it sees bad ch

Re: dhcpd: bad IP checksums on current

2011-04-09 Thread Kenneth R Westerback
On Sun, Apr 10, 2011 at 03:26:30AM +0200, Mattieu Baptiste wrote: > On Sun, Apr 10, 2011 at 2:47 AM, Kenneth R Westerback > wrote: > > On Sat, Apr 09, 2011 at 01:15:42PM +0200, Mattieu Baptiste wrote: > >> On Sat, Apr 9, 2011 at 1:07 PM, Mattieu Baptiste > >> wrote: > >> > Hi all, > >> > > >> >

Re: dhcpd: bad IP checksums on current

2011-04-09 Thread Kenneth R Westerback
On Sat, Apr 09, 2011 at 01:15:42PM +0200, Mattieu Baptiste wrote: > On Sat, Apr 9, 2011 at 1:07 PM, Mattieu Baptiste wrote: > > Hi all, > > > > I just upgraded my soekris this morning. My clients doesn't receive > > DHCP responses anymore. When dhcpd receives DHCPREQUEST, I have those > > messages

dhcpd: bad IP checksums on current

2011-04-09 Thread Mattieu Baptiste
Hi all, I just upgraded my soekris this morning. My clients doesn't receive DHCP responses anymore. When dhcpd receives DHCPREQUEST, I have those messages : $ sudo dhcpd -df vether0 5 bad IP checksums seen in 5 packets 5 bad IP checksums seen in 5 packets On this machine, vether0 is in a bridge

Re: dhcpd: bad IP checksums on current

2011-04-09 Thread Mattieu Baptiste
On Sat, Apr 9, 2011 at 1:07 PM, Mattieu Baptiste wrote: > Hi all, > > I just upgraded my soekris this morning. My clients doesn't receive > DHCP responses anymore. When dhcpd receives DHCPREQUEST, I have those > messages : > > $ sudo dhcpd -df vether0 > 5 bad IP checksums seen in 5 packets > 5 bad