View Full Version : Opening Port 123 on a Linksys BEFSR41

Brad McMillan
12-16-08, 02:22 PM

I have a Linksys BEFSR41 router and I'm trying to get an NTP
timeserver (Simmtime) to work on my network. It needs to be able to
access port 123 at ip address It isn't working and tech
support at Symmetricom said I need to open port 123 on my router.

To open port 123 in my BEFSR41, I went to "advanced->forwarding->UPnP
Forwarding" and entered

Ext Port: 123 to 123
Protocol: UDP
IP Address: (which is the address of my computer)
Enable: checked

But my Simmtime still cannot connect to the NTP server.

Can anyone tell me what I need to do to so that Simmtime can access
the NTP server through port 123?

Thank you so much if you answer this.

Brad McMillan