# AX3400 and dynamic IP NAT configs?

**URL:** <https://community.a10networks.com/t/ax3400-and-dynamic-ip-nat-configs/269>\
**Category:** ADC - Application Delivery\
**Created:** [March 11, 2014, 7:48pm UTC](https://community.a10networks.com/t/ax3400-and-dynamic-ip-nat-configs/269 "2014-03-11T19:48:39Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![system](https://us1.discourse-cdn.com/flex002/uploads/a10_community/original/1X/bb9f186d33804d3044a0374e589f49fdf3be1328.png) [@system](https://community.a10networks.com/u/system)\
**Post date:** [March 11, 2014, 7:48pm UTC](https://community.a10networks.com/t/ax3400-and-dynamic-ip-nat-configs/269/1 "2014-03-11T19:48:39Z")

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So I’ve upgraded to 2.8.1-SP1 and am setting up dynamic NAT. Still rather new to the AX platform(s), so I’m walking through the config with the admin guide and the 2.8.1 release notes … The 2.8.0 admin guide has “ **ip nat inside source list** _acl-name_ **pool** _{pool-name | pool-group-name}_” for the mapping of the ACL to identify inside addresses to the pool of outside addresses. But, the CLI doesn’t appear to allow the “list” option. I have class-list and static … and I’m fairly certain that “static” is the wrong choice. The 2.8.1 release notes describe the class-list option for this use, but does this mean the older “ **ip nat inside source list** ” method is no longer available, or simply not available in the AX3400? And is there an updated version of the admin guide that rolls these changes into one document?? Thanks!

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**Author:** ![mischa](https://avatars.discourse-cdn.com/v4/letter/m/b9bd4f/32.png) [@mischa](https://community.a10networks.com/u/mischa)\
**Post date:** [March 11, 2014, 7:56pm UTC](https://community.a10networks.com/t/ax3400-and-dynamic-ip-nat-configs/269/2 "2014-03-11T19:56:30Z")

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Are you looking for Carrier Grade NAT (CGN) or Dynamic NAT in combination with SLB (ADC)?

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**Author:** ![system](https://us1.discourse-cdn.com/flex002/uploads/a10_community/original/1X/bb9f186d33804d3044a0374e589f49fdf3be1328.png) [@system](https://community.a10networks.com/u/system)\
**Post date:** [March 11, 2014, 8:13pm UTC](https://community.a10networks.com/t/ax3400-and-dynamic-ip-nat-configs/269/3 "2014-03-11T20:13:28Z")

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In the end, I’m going to be configured for CGN with VRRP-A (and possibly aVCS, unsure if I want/need that feature). I’ve loaded the CGN firmware into the box.