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Hello IPv6: In RFC 3493 it is said AF_INET6 sockets receive connections
from IPv4 nodes, mapping their addresses to ::ffff:<IPv4
address>. I think this behaviour is on by default. Although it is not
explicitly stated, section 5.3 indicates a way to turn off this
behaviour using the IPv6_V6ONLY socket option. I was wondering if you can or can't bind both AF_INET6
and AF_INET sockets to the same port at the same time. Is it ok or is it a bind
error? If it is not an error which socket receives a IPv4
connection? Both? Only one? None? In my test lab I can't seam to be able to get Microsoft's
O.S. AF_INET6 sockets to receive connections from IPv4, forcing me to bind 2
sockets, one in each protocol. In linux it works fine though, I only nead one
socket. I have not tested any other O.S. yet. This seams highly contraditory... Regards, João
Nóbrega. |
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