Posted: Mon Jan 17, 2011 7:44 Post subject: IPv6 over Client Bridge seems blocked
I'm running DD-WRT 14929 BrainSlayer build.
Having a problem: IPv6 doesn't seem to be passed correctly over Client Bridge.
I'd use WDS but have had nothing but problems with it, even after multiple reconfigurations, and trying all the usual things. Client Bridge is rock solid stable and it's fast, so I'll probably keep using that.
Has anybody had success passing IPv6 packets over Client Bridge successfully?
I'm guessing that because Client Bridge mode overwrites the MAC address, it has to use the IPv4 IP address to replace the MAC address on the other side so that the packets can be passed correctly back and forth over the bridge. The software just hasn't been written to do the same thing for IPv6 IP addresses. Is this a correct guess?
Are there other versions of DD-WRT that support IPv6 over Client Bridge?
I can be pretty sure it's not a problem with my network supporting IPv6, because if I connect a device to the other side of the bridge, IPv6 from there to the Internet works great. It's only a single side of the bridge that has trouble seeing anything else beyond it when it's using IPv6. IPv4 works great in both directions, everything can ping everything else successfully, so it's not a problem with the bridge itself.
you are right, ipv6 over mac adress translation cannot work.
Rats, that's a disappointment. Is it a feature that is on the roadmap to be added in the future? Any alternate firmwares/versions that would already have this feature?
Rats, that's a disappointment. Is it a feature that is on the roadmap to be added in the future? Any alternate firmwares/versions that would already have this feature?
I'd love to know if this is on any sort of timetable as well. My ISP is trialing ipv6 in my area, and I'd much rather stick to using a client-bridge mode rather than WDS.
I'd love to know if this is on any sort of timetable as well. My ISP is trialing ipv6 in my area, and I'd much rather stick to using a client-bridge mode rather than WDS.
It's been nearly a year and I haven't heard a peep. Big disappointment for me, as this is the reason I stopped using DD-WRT originally.
I'm now using a repeater with off-the-shelf firmware, and can't recommend it because it has big problems maintaining the connection. Netgear WN2000RPT. Piece of garbage, don't buy it. However, its one saving grace is that it preserves IPv6 through the bridge! If this weak little box can do it, then surely DD-WRT can!
Is DD-WRT still under development? No new builds since mid-2010, it seems....
I feel like I'm doing something bad dragging this thread from the grave, but I'm using an R7000 with DD-WRT as my wireless bridge, to connect to my R8000 (factory firmware), and want to know how to set ipv6 up correctly on the bridge side. My other devices are having no issues with IPv6 other than those behind the bridge.
Joined: 10 Jan 2015 Posts: 270 Location: Minnesota
Posted: Tue Feb 10, 2015 10:57 Post subject:
For what its worth, you might have a better chance getting ipv6 over client bridge to work on stock firmwares that have supported ipv6 longer than dd-wrt has.
DD-wrt just got functional ipv6 only a few months ago over the summer so there is a lot that needs attention for different kinds of networks and features of DD-wrt with ipv6.
As people said above, the client bridge function needs a way to communicate via ipv6. You'd have to figure out the radvd/dhcpv6 custom configuration to create a script which isnt very tedious in its current state.
I'll probably stick with DD-WRT for my R7000. The stock firmware doesn't allow it to work as an extender(only as a wireless bridge), or use the wan port as a part of the vlan. Both things I need from this AP. I'll just have to hope it gets addressed by people that know what they're doing eventually.
I wonder if the ex7000 would work for me with stock though.
Thanks for the suggestion. I'm already running r29607 on one of my Client Bridges and KONG's R29620 on the other. Neither gets a "proper" IPv6 address assigned to br0 (or anywhere else).
One thing that seems like an issue is that dhcp6c doesn't appear to be running. I tried running it manually and regardless of what interface I try it on I get: "client6_init: failed to get a DUID"
I'm currently running r52869 (06/02/23) and IPv6 still doesn't make it through in - now called - Station Bridge mode.
Do you guys know of a way to block IPv6 from the upstream firewall from reaching any nodes behind the wireless bridge? I'd rather disable IPv6 only for those clients instead of my entire network. How can I identify/tag the traffic that will go through the dd-wrt bridge?
