How do I open a port on a router?

Unanswered Question
Jun 3rd, 2008

i need to open 4 ports on a router.

ports # 80, 443, 6464, and 7575.

i feel really dumb, but can someone help me out?

its for a IPSEC, LAN-2-LAN connection. THey can send information, but cant receive, and these ports are closed. They need to be open. HELP!


I have this problem too.
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JORGE RODRIGUEZ Wed, 06/04/2008 - 04:25

Whichever you are terminating the tunnel at router or firewall the acl on the router or firewall terminating the tunnel will allow the traffic.

sdoremus33 Wed, 06/04/2008 - 09:21

One thing you can do is run a packet capture on your firewall( fw--> dst and reverse). If you are using PIX Ver 5.xx or 6.xx you can run the following command

(See Below)

capture -acl specify source traffic to destination including -interface to which the traffic is flowing.

Ex First create a test ACL to see if the ports are open or blocked from the firewall to dest

ACcess List 102 permit x.x.x.x where x.x.x.x = src to y.y.y.y where y.y.y.y is the destination and test all ports by using acl for each port to test

Then run capture -name, and run traffic to see results.

after you run traffic through

go back and type capture _name, this will give you the output, check to see if there are any resets denoted by -R in the trace, and if there are thats your problem. This means that the packets are being reste to src due to blobked port primarily on the FW. HTH


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