[Xorp-users] passively accepting connections

[Nathan K]

I'm having an issue where xorp is rejecting a tcp connection that is being 
established by its bgp peer. The scenario is this:
The peer router comes up then the xorp router comes up and actively makes a 
connection with the peer router. Then, the peer router goes down, and the 
xorp code detects this and goes into the mode where it tries to reconnect 
every 120s. But the peer router comes up within seconds of going down and 
tries to establish the connection on port 179 of the machine that the xorp 
router is on. Here's my tcpdump on that machine:
18:38:56.711348 10.129.4.135.49302 > 10.132.3.164.179: S 
1308169334:1308169334(0
) win 57344 <mss 1460,nop,wscale 0,nop,nop,timestamp 61046808 0> (DF)
18:38:56.711377 10.132.3.164.179 > 10.129.4.135.49302: R 0:0(0) ack 
1308169335 w
in 0

Where the original syn is coming from my peer router and is being rejected 
by xorp.

Any ideas why this is happening.

Thanks for your help.

-Nathan.

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