Re: LVS-DR UDP Service probem

To: " users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: LVS-DR UDP Service probem
From: "Michiel Muhlenbaumer" <michiel@xxxxxxxxxxxxxxxx>
Date: Fri, 20 Aug 2004 20:03:48 +0200
Why don't you use masquerading for this?

----- Original Message ----- 
From: "Mike Machado" <mmachado@xxxxxx>
To: <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Sent: Friday, August 20, 2004 8:00 PM
Subject: LVS-DR UDP Service probem

> I have a LVS-DR setup with two realservers. My service is a voip
> application, SIP specifically. I am trying to balance requests between
> the two. I have all the LVS stuff setup, and was able to get the telnet
> test to work properly. With UDP though, there seems to be a problem.
> When the application is forming its reply, it uses the realserver as the
> source IP, instead of the VIP, as it does with the telnet test. I assume
> this is because UDP is stateless. I tried to SNAT the packets back to
> the correct IP, but you cannot SNAT locally generated packets.
> I was able to change my voip application to just BIND to the VIP, but
> due to the nature of this application, it needs to be able to
> communicate on both the VIP and the RIP, I just want reply packets to
> use the same source IP and the inbound packets.
> Anyone come across this problem for UDP applications, along with a
> possible solution?
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