Skip site navigation (1)Skip section navigation (2)
Date:      Mon, 7 Dec 2009 23:30:07 +0300
From:      Lytochkin Boris <lytboris@gmail.com>
To:        =?ISO-8859-1?Q?Ermal_Lu=E7i?= <eri@freebsd.org>
Cc:        Luigi Rizzo <luigi@freebsd.org>, src-committers@freebsd.org, svn-src-all@freebsd.org, Julian Elischer <julian@elischer.org>, sem@freebsd.org, svn-src-head@freebsd.org, Max Laier <max@love2party.net>
Subject:   Re: svn commit: r200183 - head/sbin/ipfw
Message-ID:  <933fa9790912071230n56f27f5bhcdec44d22a1c5126@mail.gmail.com>
In-Reply-To: <9a542da30912071221t289a57a8gdfbb12c8a0b84753@mail.gmail.com>
References:  <200912061804.nB6I4R38027652@svn.freebsd.org> <4B1D437F.4050601@elischer.org> <4B1D4723.5090908@elischer.org> <200912072029.05907.max@love2party.net> <933fa9790912071145k4d97c177qc6f963ba0ffbb13@mail.gmail.com> <9a542da30912071221t289a57a8gdfbb12c8a0b84753@mail.gmail.com>

next in thread | previous in thread | raw e-mail | index | archive | help
there are multiple addresses on em0 (for example):

95.108.197.225/27
10.60.128.225/24
10.61.128.225/24
...
10.70.128.225/24

default router is in 95.108.197.225/27 network.

10.X addresses are used for SLB - SLB router does DNAT and forward
client's connection to this node, so node should forward all packets
from 10.X addresses to .254 - SLB router IPs.

ipfw config would be something like
=3D=3D=3D=3D
ipfw add 60 fwd 10.60.128.254 ip from 10.60.128.0/24 to any out
ipfw add 61 fwd 10.61.128.254 ip from 10.61.128.0/24 to any out
...
ipfw add 70 fwd 10.70.128.254 ip from 10.70.128.0/24 to any out
allow 65534 ip from any to any
=3D=3D=3D=3D

pf variant will be accordingly
=3D=3D=3D=3D
scrub in all fragment reassemble
pass in all flags S/SA keep state
pass out quick route-to (em0 10.60.128.254) inet from 10.60.128.0/24
to any flags S/SA keep state
...
pass out quick route-to (em0 10.60.128.254) inet from 10.70.128.0/24
to any flags S/SA keep state
=3D=3D=3D=3D

My box is a cluster node, not router, just simple policy-based routing requ=
ired



On Mon, Dec 7, 2009 at 11:21 PM, Ermal Lu=E7i <eri@freebsd.org> wrote:
>
>
> On Mon, Dec 7, 2009 at 8:45 PM, Lytochkin Boris <lytboris@gmail.com> wrot=
e:
>>
>> Hi!
>>
>> On Mon, Dec 7, 2009 at 10:29 PM, Max Laier <max@love2party.net> wrote:
>> [cut]
>> > I just tested an install of r197983 (9.0-CURRENT) that I had on a
>> > test-box and
>> > route-to works as it is supposed to - AFAICT. =A0FWIW, pf sets sin_len=
 for
>> > every
>> > use.
>> >
>> > Might be a problem/mis-understanding in the OPs configuration that is
>> > the
>> > issue here?
>> >
>> > I'll follow up to the thread on -net@ is a second.
>>
>> I posted my pf config in original message to -net@:
>> =3D=3D=3D=3D=3D
>> scrub in all fragment reassemble
>> pass in all flags S/SA keep state
>> pass out quick route-to (em0 10.60.128.254) inet from 10.60.128.0/24
>> to any flags S/SA keep state
>> =3D=3D=3D=3D=3D
>>
>> Pretty simple. Even when forward is disabled packets that are matched
>> by route-to rule are forwarded to default gateway instead of specified
>> in route-to. And I checked rtalloc_ign_fib() arguments when using pf -
>> seems that pf does not use this function to lookup route-to route.
>>
>> +sem@
>>
>
> My crystal ball is broken.
> Explain your freebsd config, your network topology, some debug output and
> then it can be considered useful.
>
> There are many people using route-to on FreeBSD 8 so it would have come u=
p
> before.
>
>>
>> --
>> Regards,
>> Boris Lytochkin
>
>
>
> --
> Ermal
>



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?933fa9790912071230n56f27f5bhcdec44d22a1c5126>