From owner-freebsd-stable@freebsd.org Sun Aug 6 03:36:04 2017 Return-Path: Delivered-To: freebsd-stable@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 5C3F9DB4860 for ; Sun, 6 Aug 2017 03:36:04 +0000 (UTC) (envelope-from gcr+freebsd-stable@tharned.org) Received: from roadkill.tharned.org (gcrivers-1-pt.tunnel.tserv9.chi1.ipv6.he.net [IPv6:2001:470:1f10:107f::2]) (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 2BE656E8BF for ; Sun, 6 Aug 2017 03:36:04 +0000 (UTC) (envelope-from gcr+freebsd-stable@tharned.org) Received: from flake.tharned.org ([IPv6:2001:470:1f11:107f:2435:171d:82f4:26a7]) (authenticated bits=0) by roadkill.tharned.org (8.15.2/8.15.2) with ESMTPSA id v763a03f067712 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NO) for ; Sat, 5 Aug 2017 22:36:05 -0500 (CDT) (envelope-from gcr+freebsd-stable@tharned.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=tharned.org; s=2016; t=1501990565; bh=ZIbzASw6k5H0E2Kx3xosYDWhd4ZVNv9R35RwxajvcgQ=; h=From:To:Subject:Date; b=KrTtlpcwNA+QM+n/NTHUTuwfHYmrGbzuyQo81zkBRGjcry7JXdN9Did8cE2upbyIV tun1+aALU9fU6HqkG2+TmrD6TDPOV6R1SGcMGesYG2nIn3zQWkWqjCXDxDk4E2es/z CA4gkI/xrqZRB5PimUkfEJf1RHOnyygAkIQh6EolhfUJ5dtJFfS7bVVffyVJ8ceL2L 8Wp7pMDz+r8mqWOcLOWAbkEi5qJGfjdkX+wFw3DjTbA2nGvBvZBeMdeQ87C1s25TI5 tNpMAIKwg6Vj2Z/TBARBChrzXqUCf1NMQM9AZlqeN+SKtITdIV0cej0XA+o9OePP8B XUlopD47xQ3jQ== X-Authentication-Warning: roadkill.tharned.org: Host [IPv6:2001:470:1f11:107f:2435:171d:82f4:26a7] claimed to be flake.tharned.org From: Greg Rivers To: freebsd-stable@freebsd.org Subject: SLAAC not working Date: Sat, 05 Aug 2017 22:35:56 -0500 Message-ID: <1646645.UkMcyRZBVl@flake.tharned.org> User-Agent: KMail/4.14.10 (FreeBSD/11.1-RELEASE; KDE/4.14.30; amd64; ; ) MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.6.2 (roadkill.tharned.org [IPv6:2001:470:1f10:107f:0:0:0:2]); Sat, 05 Aug 2017 22:36:05 -0500 (CDT) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 06 Aug 2017 03:36:04 -0000 I have a couple of hosts on different networks running 11.1-RELEASE amd64. Neither host will auto-configure its IPv6 address, even though valid router advertisements[1] are present. Both hosts have two oce(4) interfaces aggregated in fail-over mode via lagg(4). The lagg interface is configured thusly (/etc/rc.conf): ifconfig_oce0="up" ifconfig_oce1="up" cloned_interfaces="lagg0" ifconfig_lagg0="inet xxx.xxx.217.100/25 laggproto failover laggport oce0 laggport oce1" defaultrouter="xxx.xxx.217.1" ip6addrctl_policy="ipv6_prefer" ifconfig_lagg0_ipv6="inet6 accept_rtadv" rtsold_enable="YES" The running interface looks like this: lagg0: flags=8843 metric 0 mtu 1500 options=507bb ether ac:16:2d:1e:b8:80 inet xxx.xxx.217.100 netmask 0xffffff80 broadcast xxx.xxx.217.127 inet6 fe80::ae16:2dff:fe1e:b880%lagg0 prefixlen 64 scopeid 0xc nd6 options=23 media: Ethernet autoselect status: active groups: lagg laggproto failover lagghash l2,l3,l4 laggport: oce0 flags=5 laggport: oce1 flags=0<> ndp(8) shows only: Neighbor Linklayer Address Netif Expire S Flags fe80::ae16:2dff:fe1e:b880%lagg0 ac:16:2d:1e:b8:80 lagg0 permanent R Other hosts (running RedHat 6) on the same network SLAAC just fine. Does anyone have insight into this problem or suggestions for troubleshooting? -- Greg Rivers [1] Internet Control Message Protocol v6 Type: Router Advertisement (134) Code: 0 Checksum: 0x8176 [correct] [Checksum Status: Good] Cur hop limit: 64 Flags: 0x00, Prf (Default Router Preference): Medium 0... .... = Managed address configuration: Not set .0.. .... = Other configuration: Not set ..0. .... = Home Agent: Not set ...0 0... = Prf (Default Router Preference): Medium (0) .... .0.. = Proxy: Not set .... ..0. = Reserved: 0 Router lifetime (s): 1800 Reachable time (ms): 0 Retrans timer (ms): 0 ICMPv6 Option (Source link-layer address : 64:a0:e7:45:63:43) Type: Source link-layer address (1) Length: 1 (8 bytes) Link-layer address: Cisco_45:63:43 (64:a0:e7:45:63:43) ICMPv6 Option (Prefix information : 26xx:xxxx:4013:23::/64) Type: Prefix information (3) Length: 4 (32 bytes) Prefix Length: 64 Flag: 0xc0, On-link flag(L), Autonomous address-configuration flag(A) 1... .... = On-link flag(L): Set .1.. .... = Autonomous address-configuration flag(A): Set ..0. .... = Router address flag(R): Not set ...0 0000 = Reserved: 0 Valid Lifetime: 2592000 Preferred Lifetime: 604800 Reserved Prefix: 26xx:xxxx:4013:23:: ICMPv6 Option (MTU : 9216) Type: MTU (5) Length: 1 (8 bytes) Reserved MTU: 9216