08-14-2013 04:15 PM - edited 03-04-2019 08:46 PM
Hi
I have ASR1004, and it will be border router, I want put nat for subnet 10.0.0.0/12 on it, current the box has only one link to it has no big load. if I add nat on, please advice, does it possible cause load problem? or other problems?
Another basic question, just want confirm, I want nat 10.0.0.0/12 to one ip address, is it ok? and the 10.0.0.0/12 will includes subnets 10.0.?.0/24, if so, how can I trace all the histories, just log to local server? please advice.
Any comments will be appreciated
Thanks in advance
Julxu
Solved! Go to Solution.
08-14-2013 06:47 PM
Hi,
The performance is based on the ESP. ESP 2.5 is the lowest can give you 2.5 Gbps NAT throughput.
You can config NAT /12 to one IP. As long as you don't have 60k concurrent sessions, it will be fine.
HTH,
Lei Tian
Sent from Cisco Technical Support iPhone App
08-15-2013 04:04 AM
Hi Julxu,
The NAT throughput is 20G for ESP20. Yes, if you have more sessions, you need more IP.
HTH,
Lei Tian
08-14-2013 06:47 PM
Hi,
The performance is based on the ESP. ESP 2.5 is the lowest can give you 2.5 Gbps NAT throughput.
You can config NAT /12 to one IP. As long as you don't have 60k concurrent sessions, it will be fine.
HTH,
Lei Tian
Sent from Cisco Technical Support iPhone App
08-14-2013 09:51 PM
Lei
Thanks for reply.
I have module AS1000-ESP20, and ios version 15.3(3)S, I guess it is ok.
you said, I can nat subnet /12 to one ip, as long as concurrent sessions less than 60K. can I understand it as if I have more than that amount, I still can use nat, just give more than one ip address, am I right?
Please advice
Julxu
08-15-2013 04:04 AM
Hi Julxu,
The NAT throughput is 20G for ESP20. Yes, if you have more sessions, you need more IP.
HTH,
Lei Tian
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