Archive for the ‘firewall’ Category

PfSense Follow-Up II

November 3, 2006

Hi,

Lasts week, I installed PfSense RELEASE 1.0, and it has been running very smoothly since the install. No more crashes! It’s been running for 7 days straight now and I had absolutely no problem with it, except for my VoIP config for static port (see my other PfSense posts). Thanks a lot to the PfSense team!

I just upgraded to 1.0.1 now…

PfSense follow-up

August 8, 2006

I have been using PfSense for a month now, so I thought I should post about it… I ran into a few problems that I’d like to share:

  • Unexpected crashes caused by a PSU that was not powerful enough
  • All my devices/computers lost their IP address (DHCP)

I solved the first problem using an 1.5A PSU (I was using a 0.8A PSU). It only crashed once since then, but my target is more… 0 (a firewall shouldn’t crash).

For the second problem, I increased my lease time to 1 week. Logs show nothing about what could have caused this incident (according to the logs, PfSense’s DHCP server was still serving clients correctly).

NOTE: RC2 is out, I’m trying that right now…

PfSense

July 5, 2006

I finally made the switch from m0n0wall to PfSense today. It all went well (PfSense can import the m0n0wall config file directly), except for one thing: After the switch, I didn’t have any audio when calling through one of my VoIP provider. I fixed the problem by enabling advanced outbound NAT, and enabling the static port feature for the default rule. I needed that because PF, the packet filter used in PfSense, scrambles automaticallly the source port for more security, but VoIP needs it to be the same port to know what session it is part of. Next step is to enable it only for my Asterisk server and my Vonage ATA, instead of my whole lan.

In the end, PfSense is worth the try. I think the VoIP traffic shaping is still not perfect, but it’ll probably be fixed before it is released as stable (it is now RC1). Feel free to share your experiences with firewalls :) .