Hi,
I'm trying to setup IPFire on a small Alix board. It seems to work ok except I am experiencing a weird problem. My public facing servers are not always reachable. I run a small private data center in Vanuatu and when I try to access my public servers from a server I rent in the US it works fine. However, there are some ISP networks that can't reach my public servers. Even more weird, one of our ISPs in Vanuatu has parts of it that can reach my public servers and other parts of it (different subnets and path to destination) that can't. I read that MTU/MRU values can cause some weird, hard to troubleshoot problems. I do not experience this when I use my Vigor 3300 firewall/router. I really like IPFire and where it seems to be heading, but this is a show stopper. Unfortunately, I can't spend much time troubleshooting this problem properly as the services need to be available.
The image I used to do the installation was ipfire-2.13.1gb-ext4-scon.i586-full-core72.img.gz. It runs on the Alix alix2d3 http://www.pcengines.ch/alix2d3.htm.
Any ideas?