For When You Can't Have The Real Thing
[ start | index | login ]
start > hardware > Netopia > R910 > Basic Security

Basic Security

Created by dave. Last edited by dave, 18 years and 30 days ago. Viewed 3,122 times. #2
[diff] [history] [edit] [rdf]

Basic Security Consideration

By default, the R910 accepts telnet connections to it's WAN interface. This would let some enterprising door-knocker on the wrong side of the system potentially get access to your firewall.

I added a rule to the filter set active on my WAN interface to prevent this:

Change Output Filter 2

Enabled: Yes Forward: No

Source IP Address: your.internet.ip.address Source IP Address Mask:

Dest. IP Address: Dest. IP Address Mask:

Protocol Type: TCP Source Port Compare… Equal Source Port ID: 23 Dest. Port Compare… No Compare Dest. Port ID: 0 Established TCP Conns. Only: No

no comments | post comment
This is a collection of techical information, much of it learned the hard way. Consider it a lab book or a /info directory. I doubt much of it will be of use to anyone else.

Useful: | Copyright 2000-2002 Matthias L. Jugel and Stephan J. Schmidt