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Problem Multi Nat, 3 ISP with mail server inside

I got problem with configuration for multi nat. at outside using 3 isp and at inside have 3 network, 1 as server network, 2 as priority user network and 3 as normal user network.

ISP 1 for Mail server connecttion

ISP 2 for Priority User

ISP 3 for Non Priority User

with the configuration we attached at, all system running but with few problem :

1. slow connection at non priority user, dunno why but after we check tracert command the packet run through ISP 1 not going to ISP 3. But when we check nat translation tabel, all translation going to ISP 3.

2. we need to add extra feature, when ISP_2 down, nat will moved to ISP 1 ( Failover for priority user)

We need help from anyone who can help us solve this problem.

Kindest regards,

Abdon Erwin

Network Engineer

PT. DATA KREASI INDOTAMA

1 REPLY
Bronze

Re: Problem Multi Nat, 3 ISP with mail server inside

Hi,

Regarding your second question, have a look at this example:

http://www.cisco.com/en/US/tech/tk364/technologies_configuration_example09186a0080211f5c.shtml

BR,

Bjornarsb

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