On 25-04-13 16:07, James Knott wrote:
Koenraad Lelong wrote:
Hi,
Are there any ipv6 guru's here on the list ?
My service provider gave me a /56 prefix. My modem picks up everything fine. The next step is configuring my Linux-box as a router between my internal home-network and the modem, so creating a DMZ. My big stumbling point is routing. I can't setup static routes on my modem, so how can I tell it to forward packets destined for the internal network to the linux-box ? I did setup radvd, but AFAIK there is no means to announce where to route packets that are on "internal prefixes". AFAIK radvd just announces that it's a router, not what destinations it handles.
Does your ISP provide the subnet directly on your modem connection or is it sent to a router? It could be that you just need a switch to connect all your computers with IPv6. RADVD won't do much, unless your Linux box is acting as a router. In my case, I obtain IPv6 via a tunnel, with it's own IPv6 end points. The end point addresses are not within my subnet. Traffic for my subnet is sent to my end point address and then routed to my network. I had to manually set up rules in /etc/sysconfig SuSEfirewall to route and filter traffic for my subnet. RADVD announces the router address for outgoing traffic. Incoming is routed according to interface address, as usual.
Another question is dhcpv6. I got the address of my "external" NIC of the linux-box and prefix for the internal NIC ( = IA_NA and IA_PD) from the modem with dhcpv6-client. But the modem only announces a /62 prefix (not configurable). Is this customary to do ? I mean, I got a /56 prefix but the modem discards 252 prefixes. Or do I have to "recover" these myself, manually, by setting up radvd and/or dhcpv6-server to the internal side ?
The basic user subnet is a /64. Like you, I have a /56 subnet, but that is intended to be split into 256 /64 subnets. Have you asked your ISP's support about this?
Hi, Actually my modem is also a router. It's a "xDSL-router". I also set up a tunnel on my main linux-box, because I don't know how to successfully place a router after a router with ipv6. The tunnel works fine but it's only serving a single subnet/prefix. Now I'm trying to get it working natively, first using another linux-machine so I don't disrupt my working setup. I'll ask my ISP if they can advise. Thanks for your reply. Koenraad -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org