Re: IPSec Packet Loss Help

2014-03-10 Thread Andy
Hi Zach. Ah great news! I noticed your email before the weekend but didn't have a chance to reply. Please you worked it out. The remote network routes I use don't point at the local inside CARP IP but instead at the local inside physical IP (each firewalls own IP just to set the source).

Re: IPSec Packet Loss Help

2014-03-10 Thread Zach Leslie
> Hope this helps, Thanks, Andy. Once I removed the routes for the remote network point to the internal carp interface, everything works like I expect. Super stable. Thanks for your time. I'll mess with the NAT for monitoring soonish and see if I can get that working. -- Zach

Re: IPSec Packet Loss Help

2014-03-07 Thread Zach Leslie
> I had to disable monitoring of the internal interfaces of both remote > firewalls, as it killed the VPN when you ping'ed the backup firewall. The > packets get there, but the reply is sent back directly from the backup and > not via the master. > > To fix that I added a NAT rule, and could then

Re: IPSec Packet Loss Help

2014-03-07 Thread Zach Leslie
On Fri, Mar 07, 2014 at 04:35:45PM +, Andy wrote: > Hi > > On Thu 06 Mar 2014 23:03:58 GMT, Zach Leslie wrote: > >On Thu, Mar 06, 2014 at 08:16:34PM +, Andy Lemin wrote: > >>Hi, haven't read your original email but if my assumptions about your setup > >>are correct is the VPN tunnel dropp

Re: IPSec Packet Loss Help

2014-03-07 Thread Andy
Hi On Thu 06 Mar 2014 23:03:58 GMT, Zach Leslie wrote: On Thu, Mar 06, 2014 at 08:16:34PM +, Andy Lemin wrote: Hi, haven't read your original email but if my assumptions about your setup are correct is the VPN tunnel dropping every now and then? Thats correct. Daemons start up quick, ne

Re: IPSec Packet Loss Help

2014-03-06 Thread Zach Leslie
On Thu, Mar 06, 2014 at 08:16:34PM +, Andy Lemin wrote: > Hi, haven't read your original email but if my assumptions about your setup > are correct is the VPN tunnel dropping every now and then? Thats correct. Daemons start up quick, negotiations happen, and then periodically the tunnel is j

Re: IPSec Packet Loss Help

2014-03-06 Thread Andy Lemin
Hi, haven't read your original email but if my assumptions about your setup are correct is the VPN tunnel dropping every now and then? I had a similar issue with 4 OBSD firewalls (2 at each end), all running isakmpd and sasyncd to keep the SAs in sync between a pair. With the tunnels explicitly

Re: IPSec Packet Loss Help

2014-03-06 Thread Zach Leslie
On Wed, Mar 05, 2014 at 11:05:11PM -0600, Amit Kulkarni wrote: > > If PF information is needed, I can provide and obscure, but I didn't > > expect it to be > > the issue. > > > > i am no expert on this. but if it is a packet loss issue, you need to post > the obscured pf.conf Fair point. I've no

Re: IPSec Packet Loss Help

2014-03-05 Thread Zach Leslie
> OpenBSD 5.4 GENERIC#37 amd64 I've just booted the MP kernel on all four systems just to test and I am still seeing the behaviour. I can prompt the packet loss by generating load on the CPU. Running Puppet on the machines drives up the CPU usage considerably, at which point my remote session ha