Re: [tor-relays] Please enable IPv6 on your relay!

Aaron Hopkins:

I tried configuring this a while ago, but got confused by what appeared to be conflicting documentation for IPv6 exit policies. Is the ExitPolicy for IPv6 completely separate (only using accept6/reject6 lines) or does it also make use of lines like "ExitPolicy accept *:80" which mention a port but not an IPv4 IP?

Wildcard accept/reject policies seem to catch both IPv6 and v4 going from the comment (and code) in src/or/routerparse.c[1]:

/** Parse the addr policy in the string <b>s</b> and return it. If

• assume_action is nonnegative, then insert its action (ADDR_POLICY_ACCEPT or
• ADDR_POLICY_REJECT) for items that specify no action.
• The addr_policy_t returned by this function can have its address set to
• AF_UNSPEC for '*'. Use policy_expand_unspec() to turn this into a pair
• of AF_INET and AF_INET6 items.

*/

[1] https://gitweb.torproject.org/tor.git/tree/src/or/routerparse.c?id=tor-0.2.7... (Opening that link may hang tbb for a bit)