Hello Dude,
i configure proxmox manually
debian:~# cat /etc/network/interfaces
# network interface settings
#auto lo
#iface lo inet loopback
#auto eth0
#iface eth0 inet static
# address 10.0.0.181
# netmask 255.255.255.0
# gateway 10.0.0.1
auto br0
iface br0 inet static
address 10.0.0.181
netmask 255.255.255.0
gateway 10.0.0.1
bridge_ports eth0
debian:~# ifconfig
br0 Link encap:Ethernet HWaddr 00:1e:8c:e0:52:c5
inet addr:10.0.0.181 Bcast:10.0.0.255 Mask:255.255.255.0
inet6 addr: fe80::21e:8cff:fee0:52c5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:763 errors:0 dropped:0 overruns:0 frame:0
TX packets:610 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:60729 (59.3 KiB) TX bytes:41903 (40.9 KiB)
eth0 Link encap:Ethernet HWaddr 00:1e:8c:e0:52:c5
inet6 addr: fe80::21e:8cff:fee0:52c5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:844 errors:0 dropped:0 overruns:0 frame:0
TX packets:616 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:94858 (92.6 KiB) TX bytes:51717 (50.5 KiB)
Interrupt:248 Base address:0x2000