strange connection of port 500

[Ric Moore]

Ok, back to the saga of the DSL modem, I finally just caved in and kept
the DHCP connection with it port forwarding http to my machine on port
80. It has been slow as hell and checking the modem I'm finding another
service enabled to passthrough, here it is:


Service Name 
IPSEC ALG 
Type 
Port Forwarding
Port 1     
  
Protocol 
TCP/UDP
Global Port(s) 
500
Base Host Port 
500
Port 2     
  
Protocol 
TCP/UDP
Global Port(s) 
500
Base Host Port 
500

Anyone know what that is?? I didn't set it. Ric


-- 
================================================
My father, Victor Moore (Vic) used to say:
"There are two Great Sins in the world...
...the Sin of Ignorance, and 
...the Sin of Stupidity.
Only the former may be overcome." R.I.P. Dad.

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