From owner-svn-src-stable-12@freebsd.org Fri Aug 28 08:50:08 2020 Return-Path: Delivered-To: svn-src-stable-12@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 705D73D201A; Fri, 28 Aug 2020 08:50:08 +0000 (UTC) (envelope-from gbe@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4BdCwJ2T1zz4FM6; Fri, 28 Aug 2020 08:50:08 +0000 (UTC) (envelope-from gbe@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 3994D1260B; Fri, 28 Aug 2020 08:50:08 +0000 (UTC) (envelope-from gbe@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 07S8o8Qp067304; Fri, 28 Aug 2020 08:50:08 GMT (envelope-from gbe@FreeBSD.org) Received: (from gbe@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 07S8o8Ro067303; Fri, 28 Aug 2020 08:50:08 GMT (envelope-from gbe@FreeBSD.org) Message-Id: <202008280850.07S8o8Ro067303@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: gbe set sender to gbe@FreeBSD.org using -f From: Gordon Bergling Date: Fri, 28 Aug 2020 08:50:08 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r364904 - stable/12/share/man/man4 X-SVN-Group: stable-12 X-SVN-Commit-Author: gbe X-SVN-Commit-Paths: stable/12/share/man/man4 X-SVN-Commit-Revision: 364904 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable-12@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: SVN commit messages for only the 12-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Aug 2020 08:50:08 -0000 Author: gbe (doc committer) Date: Fri Aug 28 08:50:07 2020 New Revision: 364904 URL: https://svnweb.freebsd.org/changeset/base/364904 Log: MFC r364450: gre(4): Mention sysctl for nesting gre tunnels PR: 228465 Submitted by: Sergey Akhmatov Reviewed by: bcr Approved by: bcr Differential Revision: https://reviews.freebsd.org/D26097 Modified: stable/12/share/man/man4/gre.4 Directory Properties: stable/12/ (props changed) Modified: stable/12/share/man/man4/gre.4 ============================================================================== --- stable/12/share/man/man4/gre.4 Fri Aug 28 08:14:19 2020 (r364903) +++ stable/12/share/man/man4/gre.4 Fri Aug 28 08:50:07 2020 (r364904) @@ -29,7 +29,7 @@ .\" .\" $FreeBSD$ .\" -.Dd June 29, 2020 +.Dd August 21, 2020 .Dt GRE 4 .Os .Sh NAME @@ -210,6 +210,15 @@ The kernel must be set to forward datagrams by setting .Va net.inet.ip.forwarding .Xr sysctl 8 variable to non-zero. +.Pp +By default, +.Nm +tunnels may not be nested. +This behavior may be modified at runtime by setting the +.Xr sysctl 8 +variable +.Va net.link.gre.max_nesting +to the desired level of nesting. .Sh SEE ALSO .Xr gif 4 , .Xr inet 4 ,