[opensuse] Practicalities of IPv6 - no default gateway needed?
Doing my first baby steps with IPv6, I've just now come across the issue of the default gateway. It's easy enough to set up manually or with YaST, but apparently it's no longer necessary due to the "Neighbor Discovery Protocol":"Router Solicitation"? /Per -- Per Jessen, Zürich (12.7°C) -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Sun, 2009-10-25 at 15:02 +0100, Per Jessen wrote:
Doing my first baby steps with IPv6, I've just now come across the issue of the default gateway. It's easy enough to set up manually or with YaST, but apparently it's no longer necessary due to the "Neighbor Discovery Protocol":"Router Solicitation"?
If you get an ipv6 address from your ISP it might not be needed. Both at work and at home i set it explicitly after i bring my tunnel up. hw -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Hans Witvliet wrote:
On Sun, 2009-10-25 at 15:02 +0100, Per Jessen wrote:
Doing my first baby steps with IPv6, I've just now come across the issue of the default gateway. It's easy enough to set up manually or with YaST, but apparently it's no longer necessary due to the "Neighbor Discovery Protocol":"Router Solicitation"?
If you get an ipv6 address from your ISP it might not be needed.
Yes, I have an IPv6 network that was allocated by my ISP. I set up a default route like this: "ip -6 add default dev ppp0" - it looks like I would otherwise have to get the box to issue an ICMPV6:Router_Solicitation, but how do I do that? I was also interested in local systems though - they would all go through the gateway machine, but unless I configure a permanent default ipv6 route, I don't see how they would get it. -- Per Jessen, Zürich (12.1°C) -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Sun, 2009-10-25 at 17:33 +0100, Per Jessen wrote:
Hans Witvliet wrote:
On Sun, 2009-10-25 at 15:02 +0100, Per Jessen wrote:
Doing my first baby steps with IPv6, I've just now come across the issue of the default gateway. It's easy enough to set up manually or with YaST, but apparently it's no longer necessary due to the "Neighbor Discovery Protocol":"Router Solicitation"? If you get an ipv6 address from your ISP it might not be needed. Yes, I have an IPv6 network that was allocated by my ISP. I set up a default route like this: "ip -6 add default dev ppp0" - it looks like I would otherwise have to get the box to issue an ICMPV6:Router_Solicitation, but how do I do that?
You could run your own radvd (Router ADVertisement Disovery daemon). radvd is pretty simple.
I was also interested in local systems though - they would all go through the gateway machine, but unless I configure a permanent default ipv6 route, I don't see how they would get it.
Once you have a router discovery service running on any host on the subnet it will just-work, for default route anyway. Usually this is provided by the router itself (like a Cisco router). If you have a large network you probably want to look into RIPng or OSPFv6, just like with IPv4 [functionally anyway, some of the essentials are quite different]. -- OpenGroupware developer: awilliam@whitemice.org http://whitemiceconsulting.blogspot.com/ OpenGroupare & Cyrus IMAPd documenation @ http://docs.opengroupware.org/Members/whitemice/wmogag/file_view -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Adam Tauno Williams wrote:
On Sun, 2009-10-25 at 17:33 +0100, Per Jessen wrote:
On Sun, 2009-10-25 at 15:02 +0100, Per Jessen wrote:
Doing my first baby steps with IPv6, I've just now come across the issue of the default gateway. It's easy enough to set up manually or with YaST, but apparently it's no longer necessary due to the "Neighbor Discovery Protocol":"Router Solicitation"? If you get an ipv6 address from your ISP it might not be needed. Yes, I have an IPv6 network that was allocated by my ISP. I set up a default route like this: "ip -6 add default dev ppp0" - it looks
Hans Witvliet wrote: like I would otherwise have to get the box to issue an ICMPV6:Router_Solicitation, but how do I do that?
You could run your own radvd (Router ADVertisement Disovery daemon). radvd is pretty simple.
Yeah, I came across that whilst googling. Also rtsold for the receiving end.
I was also interested in local systems though - they would all go through the gateway machine, but unless I configure a permanent default ipv6 route, I don't see how they would get it.
Once you have a router discovery service running on any host on the subnet it will just-work, for default route anyway. Usually this is provided by the router itself (like a Cisco router).
It all sounds a little overengineered for my purposes. The default gateway will never change, so AFAICT I might as well just define a default route instead of running rtsold ? What do you do - are you running e.g. rtsold on all your systems? /Per -- Per Jessen, Zürich (10.6°C) -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Hi! Am Montag 26 Oktober 2009 schrieb Per Jessen:
It all sounds a little overengineered for my purposes. The default gateway will never change
Mobile device? Regards, Matthias -- Matthias Bach www.marix.org „Der einzige Weg, die Grenzen des Möglichen zu finden, ist ein klein wenig über diese hinaus in das Unmögliche vorzustoßen.“ - Arthur C. Clarke
Matthias Bach wrote:
Hi!
Am Montag 26 Oktober 2009 schrieb Per Jessen:
It all sounds a little overengineered for my purposes. The default gateway will never change
Mobile device?
Well, most of my devices are in 19" racks and quite solidly anchored to the ground. /Per -- Per Jessen, Zürich (5.8°C) -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Adam Tauno Williams wrote:
On Sun, 2009-10-25 at 17:33 +0100, Per Jessen wrote:
On Sun, 2009-10-25 at 15:02 +0100, Per Jessen wrote:
Doing my first baby steps with IPv6, I've just now come across the issue of the default gateway. It's easy enough to set up manually or with YaST, but apparently it's no longer necessary due to the "Neighbor Discovery Protocol":"Router Solicitation"? If you get an ipv6 address from your ISP it might not be needed. Yes, I have an IPv6 network that was allocated by my ISP. I set up a default route like this: "ip -6 add default dev ppp0" - it looks
Hans Witvliet wrote: like I would otherwise have to get the box to issue an ICMPV6:Router_Solicitation, but how do I do that?
You could run your own radvd (Router ADVertisement Disovery daemon). radvd is pretty simple.
Just in case anyone is following this - my router is now running radvd, and it seems to be working quite well. /Per -- Per Jessen, Zürich (9.4°C) -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Sun, 2009-10-25 at 15:02 +0100, Per Jessen wrote:
Doing my first baby steps with IPv6, I've just now come across the issue of the default gateway. It's easy enough to set up manually or with YaST, but apparently it's no longer necessary due to the "Neighbor Discovery Protocol":"Router Solicitation"?
Correct. IPv6 hosts will configure their default routes using ICMPv6. -- openSUSE http://www.opensuse.org/en/ Linux for human beings who need to get things done. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
participants (4)
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Adam Tauno Williams -
Hans Witvliet -
Matthias Bach -
Per Jessen