Hello, I have the same problem. Same software version V3.03.02s168p22.
Manual says I have to enable IPv6 by command ipv6 in system-view, but there is no such command:
[5500G-EI]ipv6 ?
host Add/Remove a host name and its IP address to the IPv6 host name table
icmp-error Specify ICMPv6 configuration information
nd IPv6 interface neighbor discovery subcommands
neighbor IPv6 neighbor cache entries
route-static Establish static route
[5500G-EI]ipv6
^
% Incomplete command found at '^' position.Maybe this problem is only in this software version, but I do not see anything in changelog about this issue.