Hetzner / Proxmox 1.5 (2.6.18-2-pve) / Bridged networking with veth

[mastens]

Hi guys!

I really do need some help here, to get my system up and running again.. I'm soooon slamming my had against the wall.

Ip's i have:

host ip: 85.10.xxx.10
additional ip's: 85.10.xxx.22-24
88.198.xxx.176/28
netmask: 255.255.255.240
Broadcast: 88.198.xxx.191
i want to be able to bridge 2 vm's out from this configuration.
Main ip on vm1 = 85.10.xxx.23
Main ip on vm2 = 85.10.xxx.24

vmbr0 ip = 85.10.xxx.22

subnet ip's was delegated around on both vm's.

I had this working somehow, with this configuration, but i added some ipv6 stuff on host, and did an network restart, and somehow the whole shit fucked up...

I can ping both vm's from each other 85.10.xxx.23 -> 85.10.xxx.24
and 85.10.xxx.24 -> 85.10.xxx.23
But not the world, nor the gateway ip.

Anyone with any suggestions?

Regards

Marius

 

[udo]

Hi,
take a look with tcpdump.

Udo

 

[mastens]

Yo,

Been trying, but i'm not getting any logic output... trying to do with |grep ipaddr and stuff like that, but... Dosent look like the host is reciving anything from guests..

 

[mastens]

Ok let's see here, changed a couple of things now, got some results from tcpdump, host sees the packets, and responds, but the respond aint able to get back to vm2 it looks like:

01:02:00.154797 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84) vm2 > hostserver.: ICMP echo request, id 24631, seq 1, length 64
01:02:01.154250 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84) vm2 > hostserver.: ICMP echo request, id 24631, seq 2, length 64
01:02:02.154760 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84) vm2 > hostserver.: ICMP echo request, id 24631, seq 3, length 64
01:02:03.154267 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84) vm2 > hostserver.: ICMP echo request, id 24631, seq 4, length 64

This was when pinging host from vm2, host --> vm2 no output from tcpdump.... Suggestions ?

 

[udo]

Ok let's see here, changed a couple of things now, got some results from tcpdump, host sees the packets, and responds, but the respond aint able to get back to vm2 it looks like:

01:02:00.154797 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84) vm2 > hostserver.: ICMP echo request, id 24631, seq 1, length 64
01:02:01.154250 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84) vm2 > hostserver.: ICMP echo request, id 24631, seq 2, length 64
01:02:02.154760 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84) vm2 > hostserver.: ICMP echo request, id 24631, seq 3, length 64
01:02:03.154267 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84) vm2 > hostserver.: ICMP echo request, id 24631, seq 4, length 64

This was when pinging host from vm2, host --> vm2 no output from tcpdump.... Suggestions ?

Hi,
you don't see anything when the host ping to vm2?! Therfore you see also not the answer of the ping from vm2.
Perhaps your route is not correct, so the package go to another nic (and lost?).

Udo

 

[mastens]

Nope, i dident see anything there Weird stuff, but i'm up and running again now.

So, please close/delete this if you guys want to clean up here!