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Connection problems upon router reset in core 125

Posted: January 3rd, 2019, 8:32 pm
by ComputersAreHell2
Hi,

I've been using IPFire for a couple of years without problems. However, since I upgraded to 125 recently, I experienced some connection issues related to resetting my router.

My setup looks like this: Internet > ISP provided router > IPFire box > Network (GREEN)

Sometimes I have to reset the ISP router by plugging it out and back in. It usually takes about a minute to fully boot up, at which point IPfire gets a connection and all works well. After almost exactly 1 minute and 30 seconds however, IPFire loses the connection and fails to process any request my devices on GREEN make into the world wide web (or even just at the ISP router). I discovered however that it works flawlessly again when I plug the RED cable out and in again.
I'm not super knowledgeable about troubleshooting Linux network issues, but here's what I found out: When I connect to IPFire via SSH, the ifconfig looks fine and it's able to ping anything in the web. It's just that GREEN seems to be cut off from RED entirely.
Also a curious observation: When I use my computer (in GREEN) to keep pinging something in RED or beyond (the ISP router or 8.8.8.8 for example) the pings go through even after the connection is lost. However, if I only start pinging AFTER the connection is lost, it fails to ping them. I have no idea what it means. I think it's a problem with the routing component of IPFire.

As I said, it's not a huge problem, I can fix it by plugging the RED cable out and in again, but it's still inconvenient and it would be nice if it got fixed in some upcoming update.