I'm trying to setup a HE.net IPv4 to IPv6 tunnel and it requires the "tunnel mode ipv6ip" in the tunnel configuration.
It looks like that feature is not available. I've been reading that I might need a new license. Is this a license issue or a model/firmware issue?
Switch Ports Model SW Version SW Image
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* 1 24 WS-C3750G-24T 12.2(55)SE C3750-IPSERVICESK9-M