[pve-devel] dhcp : lease a mask with 255.255.255.255 is not possible

[Alexandre DERUMIER]

>>I use dhcp with bridge about 10 years now, and never observed any problems? 

I have also see users on proxmox forum having this problem, don't remember exactly but it's related to offloading
(offloading of physical interface or offloading in virtio nic)


also on the wiki
http://pve.proxmox.com/wiki/Win7_Guest_DHCP_not_working_fix

or here

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/610391
http://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1055766.html
----- Mail original ----- 

De: "Dietmar Maurer" <dietmar at proxmox.com> 
À: "Alexandre DERUMIER" <aderumier at odiso.com> 
Cc: "pve.proxmox.com" <pve-devel at pve.proxmox.com> 
Envoyé: Jeudi 29 Août 2013 12:23:12 
Objet: RE: [pve-devel] dhcp : lease a mask with 255.255.255.255 is not possible 

> Note :to get dhcp working with bridge, I need this iptables rules 
> 
> "iptables -A POSTROUTING -t mangle -p udp --dport 68 -j CHECKSUM -- 
> checksum-fill" 
> 
> because of something bad with packets fragmentation.. 

I use dhcp with bridge about 10 years now, and never observed any problems?