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How to Add Outbound ICMP Firewall Rule on Netgear DG834G

Last response: in Wireless Networking
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May 30, 2004 11:41:00 PM

Archived from groups: alt.comp.networking.firewalls,alt.internet.wireless (More info?)

Does anyone know how to allow outbound ICMP traffic on a Netgear DG834G
router without simply allowing everything outbound?

Basically, I've tightened security on the DG834G to only allow outbound
those services I want users to run (eg. HTTP, DNS, etc.) through a series of
firewall rules. This works absolutely fine. However, I also wanted to allow
outbound pings, tracert, etc. and I cannot see how to allow outbound ICMP
traffic. If I try to define a new Service I only get the options of service
type TCP or UDP.

Any ideas?

Thanks, David
May 10, 2009 6:29:05 PM

You'll have to enable the telnet service on the router and enable it that way. It is not available through the web admin which is a pain!

Note any changes you make to the router via telnet are lost when the router is reboot.

To enable telnet on the router, go to http://x.x.x.x/setup.cgi?todo=debug where x.x.x.x is your router's ip

Now start a telnet session to the router (start->run->telnet x.x.x.x)

Type the following in the telnet program

iptables -I OUT_FILTER 1 -p icmp -j ACCEPT

you should now be able to ping
!