From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pablo Neira Ayuso Subject: Re: [PATCH 2/5] gtp: clear DF bit on GTP packet tx Date: Tue, 24 Jan 2017 20:17:03 +0100 Message-ID: <20170124191703.GB9897@salvia> References: <20170124172402.12096-1-aschultz@tpip.net> <20170124172402.12096-3-aschultz@tpip.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev@vger.kernel.org, Lionel Gauthier , openbsc@lists.osmocom.org, Harald Welte To: Andreas Schultz Return-path: Received: from mail.us.es ([193.147.175.20]:36460 "EHLO mail.us.es" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750708AbdAXTRI (ORCPT ); Tue, 24 Jan 2017 14:17:08 -0500 Received: from antivirus1-rhel7.int (unknown [192.168.2.11]) by mail.us.es (Postfix) with ESMTP id 13F131EC2C2 for ; Tue, 24 Jan 2017 20:17:07 +0100 (CET) Received: from antivirus1-rhel7.int (localhost [127.0.0.1]) by antivirus1-rhel7.int (Postfix) with ESMTP id 05CDAA8258 for ; Tue, 24 Jan 2017 20:17:07 +0100 (CET) Received: from antivirus1-rhel7.int (localhost [127.0.0.1]) by antivirus1-rhel7.int (Postfix) with ESMTP id DE9A2A6C1 for ; Tue, 24 Jan 2017 20:17:04 +0100 (CET) Content-Disposition: inline In-Reply-To: <20170124172402.12096-3-aschultz@tpip.net> Sender: netdev-owner@vger.kernel.org List-ID: On Tue, Jan 24, 2017 at 06:23:59PM +0100, Andreas Schultz wrote: > 3GPP TS 29.281 and 3GPP TS 29.060 imply that GTP-U packets should be > sent with the DF bit cleared. For example 3GPP TS 29.060, Release 8, > Section 13.2.2: > > > Backbone router: Any router in the backbone may fragment the GTP > > packet if needed, according to IPv4. Given this is fixing a broken implementation with regards to standards, please target this to net.