Firewall iptables script blocking RDP

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isaacl
DD-WRT Novice


Joined: 27 May 2009
Posts: 22

PostPosted: Wed Jun 27, 2012 4:25    Post subject: Firewall iptables script blocking RDP Reply with quote
Hey all -
I have a Linksys WRT160Nv3 running DD-WRT v24-sp2 (08/12/10) mini.
The router is setup to only allow specific MAC addresses through, using this Firewall script, which someone helped me put together:

Quote:
/sbin/insmod xt_mac
iptables -I FORWARD -i br0 -j logdrop
iptables -I FORWARD -i br0 -m mac --mac-source 00:00:00:00:00:00 -j ACCEPT


Each allowed MAC address has a line like the last one.

For some reason, I'm being blocked from connecting from one computer to another, through RDP.
When I temporarily removed the Firewall script, it worked correctly.

Does anyone know what I can add in (or edit) to allow RDP to work to a specific computer? I'd also allow it to work from a remote location, assuming the corect port is forwarded...

Thanks!
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Sash
DD-WRT Guru


Joined: 20 Sep 2006
Posts: 17487
Location: Hesse/Germany

PostPosted: Wed Jun 27, 2012 9:02    Post subject: Reply with quote
i dont get it.

also upgrade 1st

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isaacl
DD-WRT Novice


Joined: 27 May 2009
Posts: 22

PostPosted: Thu Jul 05, 2012 17:21    Post subject: Reply with quote
The recommended version of DD-WRT is 14929, at least according to this thread: http://www.dd-wrt.com/phpBB2/viewtopic.php?t=52043
I basically needed to only allow specific computers to connect to the router/internet, so I set up the firewall script above to allow only those specific MAC addresses to connect.
I can connect to a computer through RDP (when port forwarding is set up) on that network from an external network/location, but when I try to connect to that computer through RDP from another computer within that network, it doesn't go through.
Does anyone have any ideas?
Thanks!
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