[PVE-User] kernel not routing bridge connections

Fábio Rabelo fabio at fabiorabelo.wiki.br
Thu Jun 7 20:07:29 CEST 2012

Just a thought :

To get bridges work kernel must accept packages forward, and in Debian
Family you need to edit /etc/sysctrl and uncoment :


To make it work, check it !

Fábio Rabelo

2012/6/7 Guy <guy at britewhite.net>

> Hello... Me again!
> I run my proxmox systems with many VLAN bridged interfaces...eg.
> vmbr10  eth2.4010
> I have lots of these and all works really well..until... I rebooted the
> system and when it came back it was running a newer kernel.
> Linux fevirt 2.6.32-12-pve #1 SMP Tue Mar 20 09:25:26 CET 2012 x86_64
> GNU/Linux
> it seems that when I have this kernel running, I can ping between the KVM
> images but not traffic comes into the systems, I found this by TCP dumping
> the network... I could see loads of ARP requests leaving the KVM image..
> and I can see them on the edge routers and the responses.. but they never
> made it back to the system.
> I finally rebooted the proxmox and selected the previous kernel..
> Linux fevirt 2.6.32-10-pve #1 SMP Tue Mar 20 09:25:26 CET 2012 x86_64
> GNU/Linux
> and now it's all working again!.
> Let me know if you need anything more.
> Cheers,
> ---Guy
> _______________________________________________
> pve-user mailing list
> pve-user at pve.proxmox.com
> http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
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