From patchwork Mon Mar 20 10:08:48 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pablo Neira Ayuso X-Patchwork-Id: 740901 X-Patchwork-Delegate: pablo@netfilter.org Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3vmsCP1FW1z9s06 for ; Mon, 20 Mar 2017 21:10:41 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753889AbdCTKKk (ORCPT ); Mon, 20 Mar 2017 06:10:40 -0400 Received: from mail.us.es ([193.147.175.20]:52112 "EHLO mail.us.es" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754074AbdCTKJq (ORCPT ); Mon, 20 Mar 2017 06:09:46 -0400 Received: from antivirus1-rhel7.int (unknown [192.168.2.11]) by mail.us.es (Postfix) with ESMTP id ADC2F5233F for ; Mon, 20 Mar 2017 11:09:18 +0100 (CET) Received: from antivirus1-rhel7.int (localhost [127.0.0.1]) by antivirus1-rhel7.int (Postfix) with ESMTP id 9E7BDDA7E9 for ; Mon, 20 Mar 2017 11:09:18 +0100 (CET) Received: by antivirus1-rhel7.int (Postfix, from userid 99) id 9D6C7DA795; Mon, 20 Mar 2017 11:09:18 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on antivirus1-rhel7.int X-Spam-Level: X-Spam-Status: No, score=-107.2 required=7.5 tests=BAYES_50,SMTPAUTH_US, USER_IN_WHITELIST autolearn=disabled version=3.4.1 Received: from antivirus1-rhel7.int (localhost [127.0.0.1]) by antivirus1-rhel7.int (Postfix) with ESMTP id 608A1DA86F for ; Mon, 20 Mar 2017 11:09:16 +0100 (CET) Received: from 192.168.1.13 (192.168.1.13) by antivirus1-rhel7.int (F-Secure/fsigk_smtp/540/antivirus1-rhel7.int); Mon, 20 Mar 2017 11:09:16 +0100 (CET) X-Virus-Status: clean(F-Secure/fsigk_smtp/540/antivirus1-rhel7.int) Received: (qmail 23571 invoked from network); 20 Mar 2017 11:09:16 +0100 Received: from 129.166.216.87.static.jazztel.es (HELO salvia.here) (pneira@us.es@87.216.166.129) by mail.us.es with SMTP; 20 Mar 2017 11:09:16 +0100 From: Pablo Neira Ayuso To: netfilter-devel@vger.kernel.org Cc: davem@davemloft.net, netdev@vger.kernel.org Subject: [PATCH 20/22] ipvs: Document sysctl pmtu_disc Date: Mon, 20 Mar 2017 11:08:48 +0100 Message-Id: <1490004530-9128-21-git-send-email-pablo@netfilter.org> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1490004530-9128-1-git-send-email-pablo@netfilter.org> References: <1490004530-9128-1-git-send-email-pablo@netfilter.org> X-Virus-Scanned: ClamAV using ClamSMTP Sender: netfilter-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org From: Hangbin Liu Document sysctl pmtu_disc based on commit 3654e61137db ("ipvs: add pmtu_disc option to disable IP DF for TUN packets"). Signed-off-by: Hangbin Liu Signed-off-by: Simon Horman --- Documentation/networking/ipvs-sysctl.txt | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/networking/ipvs-sysctl.txt b/Documentation/networking/ipvs-sysctl.txt index a6feecd467cd..056898685d40 100644 --- a/Documentation/networking/ipvs-sysctl.txt +++ b/Documentation/networking/ipvs-sysctl.txt @@ -175,6 +175,14 @@ nat_icmp_send - BOOLEAN for VS/NAT when the load balancer receives packets from real servers but the connection entries don't exist. +pmtu_disc - BOOLEAN + 0 - disabled + not 0 - enabled (default) + + By default, reject with FRAG_NEEDED all DF packets that exceed + the PMTU, irrespective of the forwarding method. For TUN method + the flag can be disabled to fragment such packets. + secure_tcp - INTEGER 0 - disabled (default)