ip nat

Unanswered Question
Jan 31st, 2008


i would like to raise this question with regards to ip nat translation, let say i have a 2000 users using a private ip's and a public ip of /24 question is how many ip from public to translate the 2000 users using a private ip.

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dongdongliu Thu, 01/31/2008 - 19:32

Theoretically, PAT(one public IP address) can support up to about 64500 transition depending on different port, but, suggestion is using NAT and PAT synchronously in the configuration.

saintlan1 Thu, 01/31/2008 - 22:36

does single public work on a 2000 clients?how about the router's performance what will be the necessary memory to support the nat translation

dongdongliu Thu, 01/31/2008 - 23:07


if you have one C class public ip addresses, I suggest you:

1. several public ip addresses will be used to one to one map with VIP SERVER.

2. mostly public ip addresses will be in a nat pool and be used to transition.

3. one public ip address is used to PAT. as soon as the addresses in the nat pool are exhausted, PAT "comes on".



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