nanog mailing list archives
Re: Dynamic routing on firewalls.
From: Eugeniu Patrascu <eugen () imacandi net>
Date: Thu, 5 Feb 2015 16:42:26 +0200
On Thu, Feb 5, 2015 at 4:10 PM, David Jansen <david () nines nl> wrote:
Hi, We have used dynamic routing on firewall in the old days. We did experience several severe outages due to this setup (OSPF en Cisco). As you will understand i’m not eager to go back to this solution but I am curious about your point of views. Is it advisory to so these days?
Any specific firewall in mind? As this depends from vendor to vendor. I've had some issues with OSPF and CheckPoint firewalls when the firewalls would be overloaded and started dropping packets at the interface level causing adjacencies to go down, but I solved this by using BGP instead and the routing issues went away. On Juniper things tend work OK. Other than this, make sure you don't run into asymmetric routing as connections might get dropped because the firewall does not know about them or packets arrive out of order and the firewall cannot reassemble all of them.
Current thread:
- Dynamic routing on firewalls. David Jansen (Feb 05)
- Re: Dynamic routing on firewalls. Eugeniu Patrascu (Feb 05)
- Re: Dynamic routing on firewalls. Ray Soucy (Feb 05)
- Re: Dynamic routing on firewalls. David Jansen (Feb 05)
- Re: Dynamic routing on firewalls. David Jansen (Feb 05)
- Re: Dynamic routing on firewalls. ML (Feb 05)
- Re: Dynamic routing on firewalls. santiago martinez (Feb 05)
- Re: Dynamic routing on firewalls. Ray Soucy (Feb 05)
- Re: Dynamic routing on firewalls. Ralph J.Mayer (Feb 05)
- Re: Dynamic routing on firewalls. Owen DeLong (Feb 05)
- Re: Dynamic routing on firewalls. Joe Hamelin (Feb 05)
- Re: Dynamic routing on firewalls. Jeff McAdams (Feb 05)
- Re: Dynamic routing on firewalls. Bill Thompson (Feb 06)
- Re: Dynamic routing on firewalls. Owen DeLong (Feb 05)
- Re: Dynamic routing on firewalls. Eugeniu Patrascu (Feb 05)