From mboxrd@z Thu Jan 1 00:00:00 1970 From: Simon Horman Subject: [PATCH 5/5] ipvs: Document sysctl pmtu_disc Date: Thu, 16 Mar 2017 13:43:15 +0100 Message-ID: <1489668195-15240-6-git-send-email-horms@verge.net.au> References: <1489668195-15240-1-git-send-email-horms@verge.net.au> Cc: lvs-devel@vger.kernel.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, Wensong Zhang , Julian Anastasov , Hangbin Liu , Simon Horman To: Pablo Neira Ayuso Return-path: Received: from kirsty.vergenet.net ([202.4.237.240]:60914 "EHLO kirsty.vergenet.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752247AbdCPMnh (ORCPT ); Thu, 16 Mar 2017 08:43:37 -0400 In-Reply-To: <1489668195-15240-1-git-send-email-horms@verge.net.au> Sender: netdev-owner@vger.kernel.org List-ID: 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) -- 2.7.0.rc3.207.g0ac5344