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Old March 4th, 2011, 11:26 AM
doobie doobie is offline
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Default Comcast bus modem broadcasting local not wan ip to netgear router

Our fvs318g router is connected to the net via a comcast SMC3DG business class modem. The router is picking up the wan ip as with a gateway address of That is in fact the local ip address of the modem. The real wan ip should be a 65.xxx.xxx.xxx number as verified with www.whatismyip.com.

VPN will not work because the local wanip is showing up as

We've tried dyndns.org and that website is initially picking up the correct wanip, but then refreshing to as our wanip, obviously getting the address from the router.

So VPN using the FQDN of xxxx.dyndns.org won't work either.

We've tried upgrading to the latest firmware version of fvs318g_v3.0.7-22.

I'm at a loss and thinking Comcast is just very clever at forcing its business users to use static IP's for additional charge, but perhaps there is a workaround?
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Old March 4th, 2011, 12:36 PM
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adit adit is offline
Join Date: Jan 2009
Location: USA
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http://forum1.netgear.com/forumdisplay.php?f=44 is the correct forum. Register your router for access.

This forum is only for UTM/STM devices.
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