From: "=?GB2312?B?y+/TwLni?=" <[EMAIL PROTECTED]>

        I have a question about DNS
   it is that one DNS domain has much IP Addrs , eg: as.test.net=>(
   192.168.2.1/192.168.2.2)
   and "as.test.net: is B2B server
   1) A INVITE B , A resolves the DNS "as.test.net" 192.168.2.1,then A sends
   INVITE request to
      192.168.2.1
   2) A receives 200 response with contact "as.test.net" and no record route
   3)A resolves the DNS "as.test.net" again, it gets 192.16.2.2 and sends ACK
   to 192.168.2.2

   now the 192.16.2.1 can't recieve the ACK request , so the session can't be
   created

   Anyone can give me any advice, or some RFC/draft about it

"A" has behaved correctly.  When "B" provides "as.test.net" as its
contact, it is stating that it is OK for "A" to send further requests
to any IP address for "as.test.net".  If further requests must be sent
to 192.168.2.1, then "B" must use "192.168.2.1" as its contact
address.

Dale
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