Blocking all outbound services except HTTP- Surely Easy?

[Arsey 2]

Hey guys,

Currently have a DG834GT- have one host connected to this router that I need to block all outbound ports except port 80: http

Have tried setting up a rule in outbound services which blocks all ports, then a seperate rule that allows port 80.

Trouble in logs I keep getting (HTTP rule not match) because obviously the router uses PAT and NAT to the web so the router see the HTTP request from the host is being sent from a really high port number (50645-60000) and therefore doesn't match the HTTP rule i set to allow HTTP through the firewall.

basically what i'm asking is- is there a way to block a Host on my LAN from requesting any port except port 80 using a netgear DG834GT router.

(I may have seriously overconfused this and I am probably just overlooking something seriously easy)

Thanks very much for your help!

 

[Arsey 2]

ah wonderful- i was forgetting DNS works off port 53! thanks very much for your help mate

 

[Arsey 2]

ahh thank you LordSplodge- In the DG834GT there is an order of logic it's supposed to follow (going from rule 1 first then to the end) So i've setup block all ports first, then allow port 80 and port 53- still wasn't working.

I'll implement your suggestion now by blocking all ports between 1-52 in one rule than 54-79 in another rule then 81-65535 in another rule, leaving only port 80 and 53 open and hope it works!

thanks again

Edit: Still not working- there doesn't seem to be an option on the DG834G to specify that i want to block the destination port not the source port