Hello,
have network issue on CT. CT has assignet 12 ips and some times ips are unreachable. vzifup-post fixing but a part (like first 2-3 ips working other not). Only vzctl restart CTID helpful. Net type - venet. Arp record and route are present, nothing changed in routing table and arp table after vzifup-post (checked by diff). HN OS - ALTLinux, kernel - 2.6.32-ovz-el-alt51, vzctl-3.3-alt1.
[root@ca44 valintinr]# brctl show
bridge name bridge id STP enabled interfaces
breth0 8000.bc305bd6aadf no eth0
breth1 8000.bc305bd6aadf no vlan2307
? (199.204.*.*) at * PERM PUP on breth1
199.204.*.* dev venet0 scope link
22: breth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN
link/ether bc:30:5b:d6:aa:df brd ff:ff:ff:ff:ff:ff
inet 199.204.*.*/25 scope global breth1
inet 192.168.11.44/24 scope global breth1
Route on CT
[root@ca44 valintinr]# vzctl exec 3104 ip r
default dev venet0 scope link
CT OS - ALTLinux too (befor was debian but got same issues)