>ifconfig
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:1845251 errors:0 dropped:0 overruns:0 frame:0
TX packets:1845251 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:189093532 (180.3 MiB) TX bytes:189093532 (180.3 MiB)
venet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
inet addr:127.0.0.1 P-t-P:127.0.0.1 Bcast:0.0.0.0 Mask:255.255.255.255
UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1
RX packets:13190677 errors:0 dropped:0 overruns:0 frame:0
TX packets:17361191 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:5631175102 (5.2 GiB) TX bytes:17001995532 (15.8 GiB)
venet0:0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
inet addr:10.10.20.45 P-t-P:10.10.20.45 Bcast:10.10.20.45 Mask:255.255.255.255
UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1
> ip rule list
0: from all lookup local
32766: from all lookup main
32767: from all lookup default
> ip route list table all
169.254.0.0/16 dev venet0 scope link metric 1002
default dev venet0 scope link
broadcast 127.255.255.255 dev lo table local proto kernel scope link src 127.0.0.1
local 10.10.20.45 dev venet0 table local proto kernel scope host src 10.10.20.45
broadcast 10.10.20.45 dev venet0 table local proto kernel scope link src 10.10.20.45
broadcast 127.0.0.0 dev lo table local proto kernel scope link src 127.0.0.1
local 127.0.0.1 dev lo table local proto kernel scope host src 127.0.0.1
local 127.0.0.1 dev venet0 table local proto kernel scope host src 127.0.0.1
local 127.0.0.0/8 dev lo table local proto kernel scope host src 127.0.0.1
unreachable ::/96 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 4294967295
unreachable ::ffff:0.0.0.0/96 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 4294967295
unreachable 2002:a00::/24 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 4294967295
unreachable 2002:7f00::/24 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 4294967295
unreachable 2002:a9fe::/32 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 4294967295
unreachable 2002:ac10::/28 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 4294967295
unreachable 2002:c0a8::/32 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 4294967295
unreachable 2002:e000::/19 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 4294967295
unreachable 3ffe:ffff::/32 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 4294967295
default dev venet0 metric 1 mtu 1500 advmss 1440 hoplimit 4294967295
unreachable default dev lo table unspec proto kernel metric -1 error -101 hoplimit 255
local ::1 via :: dev lo table local proto none metric 0 mtu 16436 advmss 16376 hoplimit 4294967295
unreachable default dev lo table unspec proto kernel metric -1 error -101 hoplimit 255
> iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
> tcpdump -i lo -e host 127.0.0.1
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on lo, link-type EN10MB (Ethernet), capture size 65535 bytes
09:19:47.896467 00:00:00:00:00:00 (oui Ethernet) > 00:00:00:00:00:00 (oui Ethernet), ethertype IPv4 (0x0800), length 74: localhost.localdomain.33038 > localhost.localdomain.http: Flags [S], seq 2650559739, win 32768, options [mss 16396,sackOK,TS val 3647429171 ecr 3647428160,nop,wscale 9], length 0
09:19:47.896502 00:00:00:00:00:00 (oui Ethernet) > 00:00:00:00:00:00 (oui Ethernet), ethertype IPv4 (0x0800), length 74: localhost.localdomain.http > localhost.localdomain.33038: Flags [S.], seq 3952410189, ack 2650559740, win 32768, options [mss 16396,sackOK,TS val 3647429171 ecr 3647429171,nop,wscale 9], length 0
09:19:47.896530 00:00:00:00:00:00 (oui Ethernet) > 00:00:00:00:00:00 (oui Ethernet), ethertype IPv4 (0x0800), length 66: localhost.localdomain.33038 > localhost.localdomain.http: Flags [.], ack 1, win 64, options [nop,nop,TS val 3647429171 ecr 3647429171], length 0
09:19:47.896626 00:00:00:00:00:00 (oui Ethernet) > 00:00:00:00:00:00 (oui Ethernet), ethertype IPv4 (0x0800), length 248: localhost.localdomain.33038 > localhost.localdomain.http: Flags [P.], seq 1:183, ack 1, win 64, options [nop,nop,TS val 3647429171 ecr 3647429171], length 182
09:19:47.896664 00:00:00:00:00:00 (oui Ethernet) > 00:00:00:00:00:00 (oui Ethernet), ethertype IPv4 (0x0800), length 66: localhost.localdomain.http > localhost.localdomain.33038: Flags [.], ack 183, win 67, options [nop,nop,TS val 3647429171 ecr 3647429171], length 0
09:19:47.897343 00:00:00:00:00:00 (oui Ethernet) > 00:00:00:00:00:00 (oui Ethernet), ethertype IPv4 (0x0800), length 428: localhost.localdomain.http > localhost.localdomain.33038: Flags [P.], seq 1:363, ack 183, win 67, options [nop,nop,TS val 3647429172 ecr 3647429171], length 362
09:19:47.897369 00:00:00:00:00:00 (oui Ethernet) > 00:00:00:00:00:00 (oui Ethernet), ethertype IPv4 (0x0800), length 66: localhost.localdomain.33038 > localhost.localdomain.http: Flags [.], ack 363, win 67, options [nop,nop,TS val 3647429172 ecr 3647429172], length 0
09:19:47.897589 00:00:00:00:00:00 (oui Ethernet) > 00:00:00:00:00:00 (oui Ethernet), ethertype IPv4 (0x0800), length 66: localhost.localdomain.33038 > localhost.localdomain.http: Flags [F.], seq 183, ack 363, win 67, options [nop,nop,TS val 3647429172 ecr 3647429172], length 0
09:19:47.897697 00:00:00:00:00:00 (oui Ethernet) > 00:00:00:00:00:00 (oui Ethernet), ethertype IPv4 (0x0800), length 66: localhost.localdomain.http > localhost.localdomain.33038: Flags [F.], seq 363, ack 184, win 67, options [nop,nop,TS val 3647429172 ecr 3647429172], length 0
09:19:47.897724 00:00:00:00:00:00 (oui Ethernet) > 00:00:00:00:00:00 (oui Ethernet), ethertype IPv4 (0x0800), length 66: localhost.localdomain.33038 > localhost.localdomain.http: Flags [.], ack 364, win 67, options [nop,nop,TS val 3647429172 ecr 3647429172], length 0
09:19:48.907586 00:00:00:00:00:00 (oui Ethernet) > 00:00:00:00:00:00 (oui Ethernet), ethertype IPv4 (0x0800), length 74: localhost.localdomain.33040 > localhost.localdomain.http: Flags [S], seq 1138244790, win 32768, options [mss 16396,sackOK,TS val 3647430182 ecr 3647429172,nop,wscale 9], length 0
09:19:48.907615 00:00:00:00:00:00 (oui Ethernet) > 00:00:00:00:00:00 (oui Ethernet), ethertype IPv4 (0x0800), length 74: localhost.localdomain.http > localhost.localdomain.33040: Flags [S.], seq 1886956057, ack 1138244791, win 32768, options [mss 16396,sackOK,TS val 3647430182 ecr 3647430182,nop,wscale 9], length 0
09:19:48.907632 00:00:00:00:00:00 (oui Ethernet) > 00:00:00:00:00:00 (oui Ethernet), ethertype IPv4 (0x0800), length 66: localhost.localdomain.33040 > localhost.localdomain.http: Flags [.], ack 1, win 64, options [nop,nop,TS val 3647430182 ecr 3647430182], length 0
09:19:48.907693 00:00:00:00:00:00 (oui Ethernet) > 00:00:00:00:00:00 (oui Ethernet), ethertype IPv4 (0x0800), length 248: localhost.localdomain.33040 > localhost.localdomain.http: Flags [P.], seq 1:183, ack 1, win 64, options [nop,nop,TS val 3647430182 ecr 3647430182], length 182
09:19:48.907715 0