Server Load Balance

Barry Margolin barmar at genuity.net
Fri Jun 23 15:02:00 UTC 2000


In article <004f01bfdcc8$4a086fa0$7b00010a at asiainfo.com>,
Zhenyu Yang <yangzhenyu at 21cn.com> wrote:
>
>I user Bind8.2.2.5,and we use ACE180 (Lay 4 Switch) to complete
>SLB,Someone can tell me the answer,if a query to a dns server,but the DNS
>server's answer packet's source ip is not which ip I send to the DNS
>server,the request will accept the answer?

No.  Most DNS clients, including BIND DNS servers performing recursive
queries, check the source address of a reply against the destination
address of the query.  If they're not the same, the reply is ignored.

-- 
Barry Margolin, barmar at genuity.net
Genuity, Burlington, MA
*** DON'T SEND TECHNICAL QUESTIONS DIRECTLY TO ME, post them to newsgroups.
Please DON'T copy followups to me -- I'll assume it wasn't posted to the group.



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