Hi all, we are currently trying to establish IPv6 between two routers. The routers are connected to 3560G switches (c3560-ipbasek9-mz.122-58.SE2). We have some issues with IPv6 neighbor discovery, the routers did not see each other in neighbor table (IPv4 ARP works fine). After connecting them to 3750 switches everything works fine so the issue is most likely related to the 3560G switches. All switches act as L2 devices, no routing between the routers interfaces. Though it should only be related to L3 functions of the 3560G "sdm pre dual-ipv4-and-ipv6" might be a solution, also a newer IOS could also be an option, but as the switches are in a productive state, a reload is not possible without a lot of paper work. Any other ideas would be appreciated ;-)
the 3560G does not support any IPv6 commands right now. It might support IPv6 L3 commands after setting the SDM template to
sdm prefer dual-ipv4-and-ipv6
We thought that they just switch the IPv6 packets between the routers, so it must not be aware of the IP protocol version. I think it's a bug in 12.2-58 IOS. I think we will plug the routers into the 3750 switches to solve the issue.
BTW: I have no access to the routers, only to the switches...company policies...
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