Telnet/SSH access

Muhammad Khan — Fri, 21 Feb 2020 11:58:57 GMT

I am unable to telnet or ssh to a router from internet (LAN works fine). I see following in debug logs on the router

*Jun 7 12:19:22: TCP0: state was LISTEN -> SYNRCVD [22 -> <Outside IP removed>(59121)]
*Jun 7 12:19:22: TCP: tcb 85455EE8 connection to <Outside IP removed>:59121, peer MSS 1260, MSS is 516
*Jun 7 12:19:22: TCP: sending SYN, seq 1340633744, ack 114092318
*Jun 7 12:19:22: TCP0: Connection to <Outside IP removed>:59121, advertising MSS 536
*Jun 7 12:19:22: TCP0: RST received, Closing connection
*Jun 7 12:19:22: TCP0: state was SYNRCVD -> CLOSED [22 -> <Outside IP removed>(59121)]
*Jun 7 12:19:22: tcp0: T CLOSED <Outside IP removed>:59121 <Telnet Host IP removed>:22 early close
*Jun 7 12:19:22: TCB 0x85455EE8 destroyed

Is it something to do with mss?

Any help would be greatly appreciated.

Hi sajidilyas,Have you solved

Rakhmadian Purnama — Sun, 19 Oct 2014 03:17:28 GMT

Hi sajidilyas,

Have you solved the issue?

In my case, It's seems caused by asymetric routing. CMIIW

I'm still waiting for next testing.

topic Hi sajidilyas,Have you solved in Network Security

Telnet/SSH access

Hi sajidilyas,Have you solved