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New Contributor

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12 Messages

Monday, July 18th, 2022 4:24 PM

Static IP no longer used for Outbound Traffic

For years I have run a low volume email server with out an issue. About two weeks ago Comcast had to swap out my Comcast supplied router for a newer version. The process seemed pretty seamless, I didn't even need to reconfigure any settings.

However, My outbound IP address for my email sever now seems to be some "shared Comcast address" instead of a static IP. Many email servers are rejecting this "shared address" and bouncing the messages back.  I have verified the IP address used for outbound mail prior to the router swap was my first static IP and now it is this bogus "shared address". It is the same as the "WAN IP Address (IPv4)" shown below. Also, a check on "whatsmyip.com" reveals the same "shared" IP. In the past, "whatsmyip.com" would also report one of my static IP's... Inbound traffic seems fine and uses the static IP's as expected.

This "WAN IP Address (IPv4)" seems to be a new thing and I do not recall seeing this on the old router - but it has been a while.

How do we configure things on this new router to use the Static IP's for Outbound traffic?

Contributor

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18 Messages

2 years ago

Hi, @my-spot

 

You can use the Xfinity Admin tool to log into your gateway and make https://comca.st/3zfRd55 it is: https://comca.st/3RIOyaZ.

New Contributor

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12 Messages

@Comcast_Otari​ 

The first link was non-functional. What is it and or what does it do?

Contributor

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18 Messages

Sorry about that. Here is the link. It is to use the Xfinity Admin tool to log into your gateway. That way you can adjust the settings. 

I no longer work for Comcast.

Official Employee

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222 Messages

It looks like you have attempted to post some personal information in our public forum. We have suppressed that information to keep your personal data private. Please review our Forum Guidelines below for additional information as to the type of information we want to help you protect: https://forums.businesshelp.comcast.com/conversations/announcements/comcast-businesssupport-community-guidelines/5fe0a62cc5375f08cd9613e5

Official Employee

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222 Messages

It looks like you have attempted to post some personal information in our public forum. We have suppressed that information to keep your personal data private. Please review our Forum Guidelines below for additional information as to the type of information we want to help you protect: https://forums.businesshelp.comcast.com/conversations/announcements/comcast-businesssupport-community-guidelines/5fe0a62cc5375f08cd9613e5

New Contributor

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12 Messages

@Comcast_Otari​ 

Thank you - but I know how to log into my gateway. Once in, I cannot find any setting that is relevant to my problem outlined above.