# IP Source NAT

**URL:** <https://community.a10networks.com/t/ip-source-nat/180>\
**Category:** System\
**Created:** [December 13, 2012, 6:06pm UTC](https://community.a10networks.com/t/ip-source-nat/180 "2012-12-13T18:06:49Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![mcpt](https://avatars.discourse-cdn.com/v4/letter/m/dc4da7/32.png) [@mcpt](https://community.a10networks.com/u/mcpt)\
**Post date:** [December 13, 2012, 6:06pm UTC](https://community.a10networks.com/t/ip-source-nat/180/1 "2012-12-13T18:06:49Z")

</div>

Hello,

```auto
I have two AX2500 (active/active).
Servers (172.10.10.0/24) need to access other servers (192.168.1.0/24) and Internet, using NAT...

```

The “IP Source NAT” works only for icmp. Why?

```auto
vlan 1 --- AX --- vlan 2 --- Internet
vlan 1: 172.10.10.0/24 (Servers)
vlan 2: 192.168.1.0/24 (VIP)

access-list 110 permit ip 172.10.10.0 0.0.0.255 any
ip nat outside (vlan 2)
ip nat inside (vlan 1)
ip nat pool snat 192.168.1.250 192.168.1.250 netmask /24

```

ip nat inside source list 110 pool snat

Thanks!

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex002/uploads/a10_community/original/1X/bb9f186d33804d3044a0374e589f49fdf3be1328.png) [@system](https://community.a10networks.com/u/system)\
**Post date:** [December 17, 2012, 3:01pm UTC](https://community.a10networks.com/t/ip-source-nat/180/2 "2012-12-17T15:01:50Z")

</div>

Hello as shown in the example below in the case of IP NAT it needs to be applied to a VE (Virtual ethernet)

vlan 100  
untagged ethernet 7  
router-interface ve 100  
!  
interface ve 100  
ip address 172.16.20.100 255.255.255.0  
ip nat inside