From owner-freebsd-bugs@freebsd.org Sat Aug 12 19:48:59 2017 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4CF41DC7163 for ; Sat, 12 Aug 2017 19:48:59 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 3A90B6F253 for ; Sat, 12 Aug 2017 19:48:59 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id v7CJmxKf038818 for ; Sat, 12 Aug 2017 19:48:59 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 221445] The absence of the accept_rtadv option causes an error "ping6: sendmsg: No buffer space available" Date: Sat, 12 Aug 2017 19:48:59 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: 11.1-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: ae@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 12 Aug 2017 19:48:59 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D221445 --- Comment #3 from Andrey V. Elsukov --- (In reply to Vladislav V. Prodan from comment #2) > Read the description of the bug again. > I described how I managed to get the ipv6 to work. It is wrong, and this is why it doesn't work. > ifconfig_em0_ipv6=3D"inet6 2001:41d0:e:XXX::1/128" What is the reason of /128 prefix length? > ipv6_static_routes=3D"ipv6gw" > ipv6_route_ipv6gw=3D"-host 2001:41d0:000e:03ff:ff:ff:ff:ff -iface em0" This will not work on FreeBSD due to implementation specificity.=20 > ipv6_defaultrouter=3D"2001:41d0:000e:03ff:ff:ff:ff:ff" When the kernel is going to send IPv6 packet, it does L2 lookup to determin= e L2 address. ND6 code does lookup for destination address only when an address = is considered as neighbor. When you have not configured the correct prefix, the ND6 has not any interfaces where the destination address can be considered = as neighbor. In your case even the L2 address of default router can not be fou= nd. --=20 You are receiving this mail because: You are the assignee for the bug.=