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H.323 payload header

aarizvi213
Level 1
Level 1

Hi,

I am creating Voice Over IP scenario , in which I have to generate

call from one gateway to other gateway.

My question will be ver simple in this way :

I connected to private IP on ane side of the Router 1 and the other

side of ROUTER 1 is public IP . This Public IP is connected to the

Router 2 on Public IP.These Public IPs are different. I mean to say

that it can be come through ISP or I can create on same network.

I did NATting on ROuter 1 . I am able to ping from both side.

Remember NATTING is only on ROuter1 not in ROUTER 2

But the problem is that when I send H.323 packet I can able to reach

at the ROuter2 , but unable to get back to ROuter1.

The reason I found that natting change the Source and Destination

addresses of the outer side so its able to ping but not for the H.323

b/c in H.323 it put the Source and destination add on Payload , so

the packet is able to reach to the destination Router2 , but from

Router2 its unable to get back b/c ROuter2 will see the Source and

detination address of the payload side so it found the private adds

so unable to send back.

I found a solution by using PIX instead of using Router1 . In PIX , I

used a command fixup protocol h323 , so the pix even change the

source and destination add of the payload. So in this way I am able

to do it .

SO IS THERE ANY WAY IN ROUTER TO CHANGE THE SOURCE AND DESTINATION

ADD OF THE PAYLOAD AS PIX ARE DOING ???????

Please reply me as soon as possible.

Thanks

ATIF

2 Replies 2

Chester Rieman
Cisco Employee
Cisco Employee

If I used 2500 or 2600 series router with IOS release 12.1 can work , right ????

I think 1700 series routers also support ????