not very effective, but you can tel hfs to use a custom ip address. custom dns name.
(witch will only work if you have a pre existing/working dns netwking forwarded to the pc. )
in the menu under with ip hfs uses to connect click custom and fill out that info there.
This is not a guarantee working solution..
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before ipv6
using ipv4
and a ddwrt router with afraid free dns name forward to router, i was able to but my dns name to hfs and generate ipv4 traffic.
ipv6 has other security that may interfere with custom, but it worked with ipv4...