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bweaver

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Network Settings

I need to know if ports UDP123, UDP500 and UDP4500 are opened as I am trying to connect another device to my

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Tecknowhelp

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Ar per this site, those ports aren't block by Cox. You may have to forward them at your router though. Specially UDP 123. Port 500 and 4500 should work with IPsec passthrough, which most routers have by default.

What model router or gateway do you have?

PortTransportProtocolDirectionReason for Filtering
25 TCP SMTP Both
 
Note: SMTP is only permitted outbound to Cox-provided SMTP servers.		 SMTP Relays
80 TCP HTTP Inbound Web servers, worms
135 UDP NetBios Both Net Send Spam / Pop-ups, Worms
136-139 UDP, TCP NetBios Both Worms, Network Neighborhood
445 TCP MS-DS/ NetBios Both Worms, Network Neighborhood
1433 TCP MS-SQL Inbound Worms, Trojans
1434 UDP MS-SQL Inbound Worms, SQLslammer
1900 UDP MS-DS / NetBios Both Worms, Network Neighborhood

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