bridge troubles

S

shpin

Guest
Hello, sorry for my english. I don't speak it well. But i have a problem.

Installed Proxmox VE 1.7 on my server and created new VM with KVM using bridge over eth0.
From VM i can see and ping host-server, but cann't see router.
And I try to find solution of this problem, using tcpdump i find that:
vm asking ARP, host server got this request, and got ARP-reply answer on br0.
but there aren't any ARP-reply ansver over virtual bridge 0 - and eth0 into my VM.

I try to set MAC address of router into my VM, allright, works...
But after that, network on my host server goes down for few seconds, sometimes 4-6sec, sometimes 1min.

All that i do - i do by reading wiki/manuals. trying reinstall - have a same problem.
My virtual machines cann't see ARP reply answer (got mac address) of the router, but there are this ansswer on the bridge interfaces.

Can you help me with this problem?

wbr, shpin
 
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet manual

auto vmbr0
iface vmbr0 inet static
address 46.4.x.x
netmask 255.255.255.192
gateway 46.4.x.x
bridge_ports eth0
bridge_stp off
bridge_fd 0


default driver - realtek, with e1000 and virtio problem have been too..

host - debian5, inside vm debian5 too, lenny
 
Sounds like a switch/router problem - your setup is very straight forward and should work without issue.

How is your network connected? for example

proxmox_host => switch => router

or is it

proxmox_host => combo_switch/router?

and what hardware is the switch & router or switch/router combo, and is this a private or hosted environment?

If it is a hosted environment then you will need to check with your provider if there is any port security on the switch or mac to ip mapping etc
 

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