Mailing List Archive

[lvs-users] lvs DR mode question
hi:

I am wonder that ,in DR mode , how does real server reply directly
to client ? what is the physical connection between realserver and
client?




--
Best Regards!

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Re: [lvs-users] lvs DR mode question [ In reply to ]
Tom,

The real server has the clients source IP address and replies just
like it would to any other client.
It is unaware of the presence of a load balancer.
The real server can connect to the internet just like any other client
behind a NAT firewall i.e. masqueraded behind a firewall IP address.
I've never seen a firewall that has an issue with the split return traffic.


On 2 January 2014 04:52, Hatt Tom <net.study.sea@gmail.com> wrote:
> hi:
>
> I am wonder that ,in DR mode , how does real server reply directly
> to client ? what is the physical connection between realserver and
> client?
>
>
>
>
> --
> Best Regards!
>
> _______________________________________________
> Please read the documentation before posting - it's available at:
> http://www.linuxvirtualserver.org/
>
> LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org
> Send requests to lvs-users-request@LinuxVirtualServer.org
> or go to http://lists.graemef.net/mailman/listinfo/lvs-users



--
Regards,

Malcolm Turnbull.

Loadbalancer.org Ltd.
Phone: +44 (0)870 443 8779
http://www.loadbalancer.org/

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Re: [lvs-users] lvs DR mode question [ In reply to ]
Hi:

There doesn't have to be one. The real_server replies directly to the client, with the VIP as source address. For the client, this makes no difference.


-- Frederique
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Re: [lvs-users] lvs DR mode question [ In reply to ]
Thanks for reply!

In DR mode , whether is the virtual ip a private ip address or public
ip address ?
as the document says ,the realserver and balance loader are in a same
local network , also I want to ask do they need a router
to transform packets to external network ?


2014/1/2 Malcolm Turnbull <malcolm@loadbalancer.org>:
> Tom,
>
> The real server has the clients source IP address and replies just
> like it would to any other client.
> It is unaware of the presence of a load balancer.
> The real server can connect to the internet just like any other client
> behind a NAT firewall i.e. masqueraded behind a firewall IP address.
> I've never seen a firewall that has an issue with the split return traffic.
>
>
> On 2 January 2014 04:52, Hatt Tom <net.study.sea@gmail.com> wrote:
>> hi:
>>
>> I am wonder that ,in DR mode , how does real server reply directly
>> to client ? what is the physical connection between realserver and
>> client?
>>
>>
>>
>>
>> --
>> Best Regards!
>>
>> _______________________________________________
>> Please read the documentation before posting - it's available at:
>> http://www.linuxvirtualserver.org/
>>
>> LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org
>> Send requests to lvs-users-request@LinuxVirtualServer.org
>> or go to http://lists.graemef.net/mailman/listinfo/lvs-users
>
>
>
> --
> Regards,
>
> Malcolm Turnbull.
>
> Loadbalancer.org Ltd.
> Phone: +44 (0)870 443 8779
> http://www.loadbalancer.org/
>
> _______________________________________________
> Please read the documentation before posting - it's available at:
> http://www.linuxvirtualserver.org/
>
> LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org
> Send requests to lvs-users-request@LinuxVirtualServer.org
> or go to http://lists.graemef.net/mailman/listinfo/lvs-users



--
Best Regards!

_______________________________________________
Please read the documentation before posting - it's available at:
http://www.linuxvirtualserver.org/

LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org
Send requests to lvs-users-request@LinuxVirtualServer.org
or go to http://lists.graemef.net/mailman/listinfo/lvs-users