Date: Fri, 11 Mar 2005 13:10:58 +0100 From: Emanuel Strobl <emanuel.strobl@gmx.net> To: Max Laier <max@love2party.net> Cc: stable@freebsd.org Subject: Return-icmp doesn't work [Was: Re: Recent panics caused by pf] Message-ID: <200503111311.03343@harrymail> In-Reply-To: <200502211924.10327.max@love2party.net> References: <20050212061756.GF4769@kt-is.co.kr> <200502211557.17818@harrymail> <200502211924.10327.max@love2party.net>
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--nextPart4478696.7dMTX5mPKO Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Am Montag, 21. Februar 2005 19:24 schrieb Max Laier: > On Monday 21 February 2005 15:57, Harald Schmalzbauer wrote: > > Am Sonntag, 20. Februar 2005 19:10 schrieb Max Laier: > > > /me slaps self ... [...] > > I tested your patch against RELENG_5 and the panic with "pfctl -Fall" > > seems to be solved. > > But I have another problem with renamed interfaces and pf: > > The following rule can't be loaded (error: routeto: unknown interface > > SDSL) "pass in on SDSL reply-to (SDSL $sdsl_gw) proto tcp from any to > > $mta port 25" [...] > > And there are more oddities with pf and FreeBSD: > > block return doesn't work. At least for TCP connections I don't get a > > reset back instead it times out. > > Also return-icmp (13) doesn't work. > > Hum?!? ... Are you sure about this? I am pretty confident that it works. > I'll have to test to make sure ... later that week/next week. Keep me > posted in case you find something. I'm on the firewall again and verified that block return works for tcp-rst,= =20 but not for return-icmp (with or without code), it seems packets just get=20 droped, regardless for which protocol (tested UDP, ICMP, TCP). Then I have another problem which may be a design problem. I am multihomed and have several pass reply-to rules. So far things are=20 working fine but block return doesn't! Of course, the return gets over the= =20 default route, so what I needed is a block return route-to or something lik= e=20 that. Do you know any detour how this could be achieved? Thanks, =2DHarry > > > Thanks, > > > > > > -Harry (P.S.: Emanuel and Harry are the same persons (me) the gmx addre= ss > > is just a fake identity for mailing lists) > > okay ... you see us perplexed ;) --nextPart4478696.7dMTX5mPKO Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (FreeBSD) iD8DBQBCMYrXBylq0S4AzzwRAk2iAJ9KziRQ3Sozowy2fMYCpabq8cBr9gCcCWSK cgbuNryralw4Z3WvsAwLSDQ= =OIic -----END PGP SIGNATURE----- --nextPart4478696.7dMTX5mPKO--
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