Proxmox networking

DerRoman

New Member
Aug 20, 2014
1
0
1
Hello,

well, I just installed Proxmox on a single server and tried to set up the Networking.

Well, the GUI itself works and the guests can be started. But if I try to install debian 7.6 via netinstall-image, the network-connection does not seem to work properly.

The configuration of the network is done automatically, but if the installer tries to reach the mirror, a network-error appears.


The pve version is:

root@server:~# pveversion
pve-manager/3.1-21/93bf03d4 (running kernel: 2.6.32-26-pve)




ifconfig shows:

eth0 Link encap:Ethernet Hardware Adresse 0c:c4:7a:04:3a:9a
inet6-Adresse: fe80::ec4:2aff:ff04:3a9a/64 Gültigkeitsbereich:Verbindung
UP BROADCAST RUNNING MULTICAST MTU:1500 Metrik:1
RX packets:8049 errors:0 dropped:0 overruns:0 frame:0
TX packets:7524 errors:0 dropped:0 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlänge:1000
RX bytes:1169520 (1.1 MiB) TX bytes:5770681 (5.5 MiB)


lo Link encap:Lokale Schleife
inet Adresse:127.0.0.1 Maske:255.0.0.0
inet6-Adresse: ::1/128 Gültigkeitsbereich:Maschine
UP LOOPBACK RUNNING MTU:16436 Metrik:1
RX packets:1285 errors:0 dropped:0 overruns:0 frame:0
TX packets:1285 errors:0 dropped:0 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlänge:0
RX bytes:877233 (856.6 KiB) TX bytes:877233 (856.6 KiB)


tap100i0 Link encap:Ethernet Hardware Adresse e2:41:fe:cd:09:20
inet6-Adresse: fe80::e041:feff:fecd:920/64 Gültigkeitsbereich:Verbindung
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metrik:1
RX packets:129 errors:0 dropped:0 overruns:0 frame:0
TX packets:551 errors:0 dropped:0 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlänge:500
RX bytes:11442 (11.1 KiB) TX bytes:51321 (50.1 KiB)


venet0 Link encap:UNSPEC Hardware Adresse 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
inet6-Adresse: fe80::1/128 Gültigkeitsbereich:Verbindung
UP BROADCAST PUNKTZUPUNKT RUNNING NOARP MTU:1500 Metrik:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:3 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlänge:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)


vmbr0 Link encap:Ethernet Hardware Adresse 0c:c4:7a:04:3a:9a
inet Adresse:96.0.23.34 Bcast:96.0.23.63 Maske:255.255.255.192
inet6-Adresse: fe80::ec4:2aff:ff04:3a9a/64 Gültigkeitsbereich:Verbindung
UP BROADCAST RUNNING MULTICAST MTU:1500 Metrik:1
RX packets:7912 errors:0 dropped:0 overruns:0 frame:0
TX packets:4978 errors:0 dropped:0 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlänge:0
RX bytes:1043144 (1018.6 KiB) TX bytes:5599793 (5.3 MiB)

The interfaces:

GNU nano 2.2.6 Datei: /etc/network/interfaces


# network interface settings
auto lo
iface lo inet loopback


iface eth0 inet manual
broadcast 255.255.255.255
network 0.0.0.0
pointopoint 96.0.23.1


iface eth1 inet manual


auto vmbr0
iface vmbr0 inet static
address 96.0.23.34
netmask 255.255.255.192
gateway 96.0.23.1
bridge_ports eth0
bridge_stp off
bridge_fd 0

What can I do here?
 
Last edited:
Hello Roman

But if I try to install debian 7.6 via netinstall-image, the network-connection does not seem to work properly.

You want to create a VM - right?

I guess you are connected to subnet 92.0.23.0/26 where 92.0.23.1 is the router to internet ans it´s working properly.

Depends if your VM should get an address in that subnet or will be connected via NAT

- if yes: check if DHCP server in subnet available
- if no: define the VM network connection as NAT

If any of my assumption is wrong send more details!

I´d try a live-CD (recommend lubuntu 14.04 https://help.ubuntu.com/community/Lubuntu/GetLubuntu) first in order to verify the network issues.

Kind regards

Mr.Holmes
 
your vmbr0 has "bridge_ports eth0"
but afaik, eth0 should be manual but not configured.

for eth0, i have only this line
"iface eth0 inet manual"
nothing else about it

ie: not this
"iface eth0 inet manual
broadcast 255.255.255.255
network 0.0.0.0
pointopoint 96.0.23.1"

could this be part of the problem?
just in case, restart pve after networking file changes.
Marco
 

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