 msjPremium
join:2004-05-21
Fort Collins, CO
kudos:1 | Here's a quick summary of problems people have had with port forwarding:
1) Your firewall setting should be "off". That's a bad name for it, because you still have protection via NAT.
2) If you have more than one machine attached to the modem then you should use static addresses for any machine that you are port forwarding to. The reason is that The DHCP server built into the modem doesn't support mac address matching, so you can't hardwire an address via dhcp. This means that the machine you are trying to forward ports to might not always have the same IP if you don't do static allocation for it.
3) Remember that you can't test the port forwarding from inside your network. You need to test it from outside. This
can be done with a port scanning service like Shields Up at www.grc.com. For checking just one port you can use www.canyouseeme.org.
Anyway, people continue to have problems with port forwarding even after understanding/checking the above issues to make sure that they are not the cause of the problem. I've offered to help diagnose the problem, but it appears that either people are solving it by other means or they don't care enough about solving the problem to work with me. If you are having the same problem I'm happy to help. Just follow the instructions in my previous post. |
