Strange networking issue.

Jimmie James jimmiejaz at gmail.com
Tue Aug 18 19:33:38 UTC 2009


Setup -  DSL modem/router 192.168.2.1. Static IP of 192.168.2.100 to 
FreeBSD jimmiejaz.org 7.2-STABLE FreeBSD 7.2-STABLE #0: Sun Aug  2 
01:00:16 EDT 2009     root at jimmiejaz.org:/usr/obj/usr/src/sys/FORTYTWO 
i386.  DHCP in the .2.10 to .2.100  with two XP machines.

I've turned IPFW off, as well as the modem/router's firewall and the 
same issue remains.

The FreeBSD box has apache-2.0.63_3 running.  host resolves to my public 
IP address. Ping from any machine hits the public IP.  Trying to reach 
apache or ssh via hostname.TLD or public IP always.. By 192.168.2.100, 
all reach http/ssh fine.

With log_in_vain set to 1 and attempting to connect, my logs fill up with
Aug 18 15:05:10 jimmiejaz kernel: TCP: [192.168.2.10]:1064 to 
[192.168.2.100]:80 tcpflags 0x2<SYN>; _syncache_add: Received duplicate 
SYN, resetting timer and retransmitting SYN|ACK
Aug 18 15:05:10 jimmiejaz kernel: TCP: [192.168.2.10]:1064 to 
[192.168.2.100]:80; syncache_timer: Response timeout, retransmitting (2) 
SYN|ACK

I found this thread. 
http://unix.derkeiler.com/Mailing-Lists/FreeBSD/net/2008-02/msg00006.html 
but it's older and doesn't really help.

Anyone happen to have an idea what's going on?


-- 
Over the years I've come to regard you as people I've met.
I may be schizophrenic, but at least I have each other, and when I am 
alone I am together.



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