Outbound NAT for traffic sent to G1100 LAN IP
grabo
Enthusiast - Level 2

Is it possible for the G1100 Fios router to NAT LAN traffic that is sent to its LAN IP, so it can be sent over the Internet?

My use case: I have a LAN device that sends syslog messages, but can only send them to a device on the LAN subnet. I'd like to send these syslogs to the G1100, and have the G1100 forward them over the Internet.

A 'traditional' firewall would happily support such a NAT. Is it possible to configure this in the G1100?

0 Likes
Reply
1 Solution
Cang_Household
Community Leader
Community Leader

NetFilter and Gen NetNetFilter and Gen Net

No, G1100 does not expose this feature to the end user. The router itself is capable of doing this, as would almost any Linux computers out there, including Raspberry Pi 1-5. G1100 only performs post-routing NAT for masquerading, and limited pre-routing NAT for netmapping. You need another customized rule for pre-routing NAT for modifying the destination address.

View solution in original post

2 Replies
Cang_Household
Community Leader
Community Leader

NetFilter and Gen NetNetFilter and Gen Net

No, G1100 does not expose this feature to the end user. The router itself is capable of doing this, as would almost any Linux computers out there, including Raspberry Pi 1-5. G1100 only performs post-routing NAT for masquerading, and limited pre-routing NAT for netmapping. You need another customized rule for pre-routing NAT for modifying the destination address.

grabo
Enthusiast - Level 2

Thanks for the reply. I was expecting that this was the answer.

I briefly was hoping that by enabling syslog on the G1100, that it'd also accept inbound syslogs, too. Unfortunately, it doesn't (but I'm now getting syslogs from the remote G1100, which I suppose is handy).

I found a cheap and lightweight syslog server that runs on Windows (FastVue Syslog Server) that I can toss on a Win10 machine that's almost always running. It has the capability to digest and forward syslogs.