# cat /proc/sys/net/ipv4/conf/eth0/forwarding
1
# cat /proc/sys/net/ipv4/conf/eth0/proxy_arp 
1
# cat /proc/sys/net/ipv4/conf/veth102ex/forwarding 
1
# cat /proc/sys/net/ipv4/conf/veth102ex/proxy_arp 
1

#  ip route show
77.120.120.8xx dev veth102ex  scope link 
77.120.120.0/24 dev eth0  proto kernel  scope link  src 77.120.120.1xx
10.100.1.0/24 dev eth1  proto kernel  scope link  src 10.100.1.103 
default via 10.100.1.1 dev eth1 
default via 77.120.120.1 dev eth0 

ifconfig
eth0      Link encap:Ethernet  HWaddr 00:e0:81:74:95:fe  
          inet addr:77.120.120.1xx  Bcast:77.120.120.255  Mask:255.255.255.0
          inet6 addr: fe80::2e0:81ff:fe74:95fe/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1649862 errors:0 dropped:0 overruns:0 frame:0
          TX packets:382528 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100 
          RX bytes:303049477 (289.0 MiB)  TX bytes:41360666 (39.4 MiB)

eth1      Link encap:Ethernet  HWaddr 00:e0:81:74:95:ff  
          inet addr:10.100.1.103  Bcast:10.100.1.255  Mask:255.255.255.0
          inet6 addr: fe80::2e0:81ff:fe74:95ff/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:76756 errors:0 dropped:0 overruns:0 frame:0
          TX packets:68772 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:37929406 (36.1 MiB)  TX bytes:4006952 (3.8 MiB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:1413735 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1413735 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:231521457 (220.7 MiB)  TX bytes:231521457 (220.7 MiB)

venet0    Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
          UP BROADCAST POINTOPOINT RUNNING NOARP  MTU:1500  Metric:1
          RX packets:1673 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2874 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:115705 (112.9 KiB)  TX bytes:216203 (211.1 KiB)

veth102ex Link encap:Ethernet  HWaddr 00:e0:81:74:95:fe  
          inet6 addr: fe80::2e0:81ff:fe74:95fe/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:46 errors:0 dropped:0 overruns:0 frame:0
          TX packets:65 errors:0 dropped:1 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:3348 (3.2 KiB)  TX bytes:5780 (5.6 KiB)

ifconfig
eth0      Link encap:Ethernet  HWaddr 00:24:81:51:18:6b  
          inet addr:77.120.120.8xx  Bcast:0.0.0.0  Mask:255.255.255.255
          inet6 addr: fe80::224:81ff:fe51:186b/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:61 errors:0 dropped:0 overruns:0 frame:0
          TX packets:43 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:5612 (5.4 KiB)  TX bytes:3252 (3.1 KiB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

# ip route show
default dev eth0  scope link