how to block port 69 on router

[JCROCCO]

Due to this nasty little worm slithering around the net, I want to make sure my router is blocking the tcp ports 135 and udp port 69.

I have a netopia R7100-C router with built in firewall, and have a hard time understanding filter packets.

It seams I have a filter that allows ports (tcp and udp) greater than 1023 to be forwarded. Does this mean that 135 and 69 wont get forwarded, therfore closed?

In laymens terms, they tell you to block ports 135 and 69, but the router documentation does not specifically state HOW TO block ports, but rather is written long winded in the form of IP filter sets. Why cant they just say "to block port 69 . . . . Do this .. "

Any help would be appreciated.

 

[Santa]

If the exploit is a windows one or the exploit is of a device behind your router and you are not explicitly telling it to forward said ports to these devices you should be safe.

The reason being is that you are protected because the packets destined for these ports are being thrown away because the router was not told to send them anywhere.

Now what you have to be careful of is the DMZ setting.

Make sure non of your computers/devices are configured to be on the DMZ and you should be ok.

Check your port forwarding section and verify non of the ports you don't want are being forwarded to your internal machines and you should be safe.