Router to Router

Omnytrix

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When I use one wireless router to provide internet to another via the switch on the back of the first one, it doesn't work with IPv6. Any clue why?
 
Solution
If you think you can get past the NAT issue when you cascade routers using IPv6 I suspect very strongly you have just traded one issue for another.

Not a lot of ISP even support IPv6 so I will assume yours does or you are wasting your time to begin with. Your likely problem is that the device you call a "router" does not actually have many of the features a true device by this name does. It would have to take the block of IPv6 ip provided by the ISP subnet it and send a partial block to the second router.

Even with a actual router you would still likely have to manually configure actual routes to tell the main router to go to the second router for some block of addresses.

Maybe you can load third party firmware to get the...

Omnytrix

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Both are Asus routers with the latest firmware and IPv6 enabled. I want IPv6 for gaming because it eliminates NAT.
 

Omnytrix

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In addition, I think a router connected to another router is called cascading routers right? Could there be some special settings I have to enable for IPv6 to work that way? In order to use one router plugged into another, are there special settings I have to use?
 

atljsf

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the second router must have disabled dhcp

they should be connected via a cable, one to the other via the lan ports, not the wan ports,

one router must be connected to the modem via the wan port, the other router must be connnected and must have disabled dhcp, connected via a ehtenrnet cable form point 1 o point 1 in the lan ports in the routers

if you try to do it via wifi, it is a different process, you might need to read the asus manual on how to do it
 

Omnytrix

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An Ethernet cable is going from LAN Ethernet port 1 on the first router to the internet Ethernet port on the second router. That's what it is currently. Is that correct? And how do I disable dhcp? And would the LAN ports on the second router work for wired devices?
 

atljsf

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dhcp, on the second router, you need to follow manual here, i don't have that router to tell you exact steps, just enter in the config page of that router and disable it, that way the other router assigns the ips on the network
 

Omnytrix

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Will the second router still work as a wireless router? And will the Ethernet ports on the second router still work?
 

atljsf

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yes, that is what a friend does with 3 routers, one is master assigning ips with the dhcp enabled, the other two are just following the first one and leaving the main router to do that

in fact he does have the same wifi network on all 3 routers to cover his house and thing is working well for him

but it is known that some routers are stubborn, refuse to cooperate in this situation, you add a complication layer with the ipv6 here, so be patient and follow manual form those two routers, you will make it work, just read the manual on how to make it disable dhcp and work with ipv6
 
If you think you can get past the NAT issue when you cascade routers using IPv6 I suspect very strongly you have just traded one issue for another.

Not a lot of ISP even support IPv6 so I will assume yours does or you are wasting your time to begin with. Your likely problem is that the device you call a "router" does not actually have many of the features a true device by this name does. It would have to take the block of IPv6 ip provided by the ISP subnet it and send a partial block to the second router.

Even with a actual router you would still likely have to manually configure actual routes to tell the main router to go to the second router for some block of addresses.

Maybe you can load third party firmware to get the features. They have been yelling about IPv6 is the future since I start in networking 20 years ago and it is still so rarely used that you do not see much in the way of actual configuration examples.
 
Solution