On Mon, 15 Mar 2010, Antonio Querubin wrote:

When a particular host is dual-stacked and only the hostname is given to IM, it seems to always select the IPv4 address of the target. Is there any way of modifying IM's behaviour to select the IPv6 address if it exists in DNS without specifying the IPv6 address explicitly? If this preference could be selected per host or even per map, that would be cool.

Actually, after some more thought, three other useful variants to the above would be to loop through all DNS addresses and probe each one and then return success if a) ANY address is successful, or b) ALL addresses are successful, or c) at least one IPv4 AND one IPv6 address are succesful. The optimal dual-stack client behaviour trying to reach a dual-stack host is to loop through all addresses to make a connection and IM should have some means of verifying that behaviour.

Antonio Querubin
808-545-5282 x3003
e-mail/xmpp:  [email protected]
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