On 2021/02/28 11:46, Rachel Roch wrote:
> Thank you all for the suggestions, I am currently testing a few of them.
> 
> Incase it makes any difference, the underlying problem I have is I have two 
> firewalls with BGP upstreams, one acting as primary, one as standby.  So the 
> problem I am seeing is the age-old problem of asymmetric traffic to the 
> secondary firewall meaning pkg_add on the secondary doesn't work.

You can't just get two sessions from your upstreams so they can both be
active rather than one in standby?

> I guess I could med/localpref tweak the secondary to push traffic via the 
> primary.  But then I still have the problem of determining return path for 
> the traffic (given inherent overlapping of IP ranges on the boxes).
> 
> 26 Feb 2021, 15:34 by [email protected]:
> 
> > On 2021-02-26, Daniel Jakots <[email protected]> wrote:
> >
> >> On Fri, 26 Feb 2021 11:53:40 +0100 (CET), Rachel Roch
> >>
> > ><[email protected]> wrote:
> >
> >>> Let's say I'm running "pkg_add -u" on a OpenBSD-based router with
> >>> multiple interfaces.
> >>>
> >>> What determines the source IP ?
> >>>
> >>
> >> On -current there is
> >>  route [-T rtable] sourceaddr [-inet|-inet6] [address]
> >>  route [-T rtable] sourceaddr [-inet|-inet6] -ifp interface
> >>
> >
> > Use with care though, this can be a footgun (especially if you are
> > connecting from there to other local machines with "strict host model").
> >
> > If you want something more targetted then nat-to is one option.
> >
> 

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