Да, сеть работает.
[root@host-46-129 vz]# vzctl enter 46130
entered into CT 46130
[root@host-46-130 /]# ping 213.248.1.6
PING 213.248.1.6 (213.248.1.6) 56(84) bytes of data.
64 bytes from 213.248.1.6: icmp_seq=1 ttl=61 time=1.02 ms
64 bytes from 213.248.1.6: icmp_seq=2 ttl=61 time=1.02 ms
64 bytes from 213.248.1.6: icmp_seq=3 ttl=61 time=1.02 ms
--- 213.248.1.6 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 1.022/1.024/1.026/0.026 ms
[root@host-46-130 /]# ping mail.ru
ping: unknown host mail.ru
[root@host-46-130 /]#