From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 2487 invoked by alias); 18 Jun 2013 18:35:51 -0000 Mailing-List: contact ecos-discuss-help@ecos.sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: ecos-discuss-owner@ecos.sourceware.org Received: (qmail 2476 invoked by uid 89); 18 Jun 2013 18:35:51 -0000 X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=AWL,BAYES_00,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,RP_MATCHES_RCVD,SPF_HELO_PASS,SPF_PASS autolearn=ham version=3.3.1 Received: from plane.gmane.org (HELO plane.gmane.org) (80.91.229.3) by sourceware.org (qpsmtpd/0.84/v0.84-167-ge50287c) with ESMTP; Tue, 18 Jun 2013 18:35:25 +0000 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1Up0kU-0006eh-Ai for ecos-discuss@ecos.sourceware.org; Tue, 18 Jun 2013 20:35:22 +0200 Received: from dsl.comtrol.com ([64.122.56.22]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 18 Jun 2013 20:35:22 +0200 Received: from grant.b.edwards by dsl.comtrol.com with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 18 Jun 2013 20:35:22 +0200 To: ecos-discuss@ecos.sourceware.org From: Grant Edwards Date: Tue, 18 Jun 2013 18:35:00 -0000 Message-ID: User-Agent: slrn/1.0.1 (Linux) Subject: [ECOS] IPv6 fails when IPv4 not configured X-SW-Source: 2013-06/txt/msg00015.txt.bz2 I've run into a problem when trying to use IPv6 without IPv4. With an IPv4 address configured, I can use IPv6 with either a static address or using DHPCv6 and everything works fine. If I configure a static IPv6 address, everything is fine. However, if when I try to use DHCPv6 without IPv4, both my dhcp client and the eCos radv6 daemon report "no route to host" failures trying to send. I believe they're both trying to send link-local multicast packets and failing because the interface doesn't have a link local address. How do I get the network stack to create and configure an IPv6 link-local address for the interface. It seems that configuring the interface with a static IPv6 address does that as a "side effect". How do I get that to happen without configuring a static IPv6 address? -- Grant Edwards grant.b.edwards Yow! Is a tattoo real, like at a curb or a battleship? gmail.com Or are we suffering in Safeway? -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss