As Mark says, having your router send router advertisements will allow the clients to configure automatically. It's easy to use a Windows 2003 Server (or XP machine for that matter) to do this. You'll also want to add routes to the machine's routing table pointing the right prefix out the right interface. And then set both of the interfaces to "forwarding" and "advertise". I recommend that you additionally add a default route pointing out to somewhere else (like the rest of the IPv6 internet), as then the machine will also advertise itself as a default router.
See http://www.microsoft.com/technet/community/columns/cableguy/cg0902.mspx# EFAA and possibly http://www.microsoft.com/technet/community/columns/cableguy/cg1002.mspx for more detailed explanations. --Brian > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of Mark Smith > Sent: Thursday, 08 September, 2005 15:00 > To: Susan Zheng > Cc: [email protected] > Subject: Re: how to add default gateway on Linux host > > On Thu, 8 Sep 2005 14:09:57 -0700 (PDT) > Susan Zheng <[EMAIL PROTECTED]> wrote: > > > Hi, > > > > I'm a beginner for IPv6 need to set up a small private IPv6 network. > > > > The lab setup plan is like below: > > > > Use 1 windows 2003 server which has two IPv6 interfaces > configured as > > default routers(it has two NIC cards) connected to net1 and net2. > > > > My linux host 1 is on net1 and linux host 2 is on net 2. > Both are IPv6 enablled. The goal is to let the two hosts on > different subnet to ping each other by their site-scope address. > > > > Note: > > The two hosts can ping each other in IPv4 addresses, but > can't reach > > each other by IPv6 addresses. > > > > Any advices about what need to do are very much appreciated! > > > > Well, you could configure a static default on both Linux > boxes, pointing to the IPv6 link local address of the > corresponding interface they're attached to on the Win 2003 server. > > Alternatively, and generally a better idea, as this is how > IPv6 was designed to be used, run a Router Advertising > service on the Windows > 2003 box, which can both inform the Linux hosts of their IPv6 > site-local prefixes and subnets (the first 64 bits of the > address), and their default router address. That makes the > Linux host configuration plug-and-play. > > I don't know what service will perform this router > advertisement do this under Windows 2003 server unfortunately > as I don't use it. > > btw, don't get too fixed on the idea of deploying site-local > addresses, I'm pretty sure they've recently been deprecated, > to be replaced with Unique Local Addresses or ULAs. ULAs have > similar routing properties to site-locals (e.g. they aren't > supposed to be routed across the Internet), however they've > added a unique part to the address allowing sites or > organisations to be joined together with a very low > probability of subnet number collisions. This site joining > includes via a VPN. There are a number of other advantages to > ULAs over site-locals. > > HTH, > Mark. > --------------------------------------------------------------------- > The IPv6 Users Mailing List > Unsubscribe by sending "unsubscribe users" to [EMAIL PROTECTED] > --------------------------------------------------------------------- The IPv6 Users Mailing List Unsubscribe by sending "unsubscribe users" to [EMAIL PROTECTED]
