Version: VyOS 1.2.1-S2
show nat destination rule 46 description "Liniya IP Galaktika" destination { address x.x.x.x port 49786 } inbound-interface eth0.17 log enable protocol tcp translation { address 10.1.3.109 port 9786 }
tcpdump on internal interface
17:44:04.136924 IP 195.181.208.61.45989 > 10.1.3.109.9786: Flags [S], seq 4278142654, win 65535, options [mss 1240,sackOK,TS val 95139529 ecr 0,nop,wscale 9], length 0 17:44:04.188032 IP 10.1.3.109.9786 > 195.181.208.61.45989: Flags [S.], seq 4233097090, ack 4278142655, win 28960, options [mss 1460,sackOK,TS val 3253055736 ecr 95139529,nop,wscale 7], length 0 17:44:04.270273 IP 195.181.208.61.45995 > 10.1.3.109.9786: Flags [S], seq 3710095113, win 65535, options [mss 1240,sackOK,TS val 95139573 ecr 0,nop,wscale 9], length 0
on external:
17:15:43.026882 IP 195.181.208.61.47323 > x.x.x.x.9786: Flags [S], seq 2763250150, win 65535, options [mss 1240,sackOK,TS val 94644764 ecr 0,nop,wscale 9], length 0 17:15:43.035219 IP 10.1.3.109.9786 > 195.181.208.61.45717: Flags [S.], seq 2815373895, ack 1891975928, win 28960, options [mss 1460,sackOK,TS val 3252630468 ecr 94644749,nop,wscale 7], length 0 17:15:43.064047 IP 195.181.208.61.38041 > x.x.x.x.39786: Flags [S], seq 2356537530, win 65535, options [mss 1240,sackOK,TS val 94644778 ecr 0,nop,wscale 9], length 0 17:15:43.159228 IP 10.1.3.109.9786 > 195.181.208.61.45723: Flags [S.], seq 3069714775, ack 850323291, win 28960, options [mss 1460,sackOK,TS val 3252630498 ecr 94644793,nop,wscale 7], length 0 17:15:43.171486 IP 195.181.208.61.47329 > x.x.x.x.9786: Flags [S], seq 3289683761, win 65535, options [mss 1240,sackOK,TS val 94644807 ecr 0,nop,wscale 9], length 0 17:15:43.217653 IP 195.181.208.61.38047 > x.x.x.x.39786: Flags [S], seq 831101836, win 65535, options [mss 1240,sackOK,TS val 94644821 ecr 0,nop,wscale 9], length 0 17:15:44.029168 IP 195.181.208.61.47323 > x.x.x.x.9786: Flags [S], seq 2763250150, win 65535, options [mss 1240,sackOK,TS val 94645065 ecr 0,nop,wscale 9], length 0
Why on external interface i saw local IP 10.1.3.109???
SNAT from same IP works OK, i see external VyOS ip...