I'm setting up a site-to-site via ASDM. Initially I configured both devices correctly, matching policies, crypto, etc and set both inside networks as "NAT exempt". Problem is, when I apply changes on older device (ASA8) I get error which I think is usually related to the ASA not understanding the command :

```
[OK] object network NETWORK_OBJ_10.10.50.0_23
      object network NETWORK_OBJ_10.10.50.0_23
[ERROR] subnet 10.10.50.0 255.255.254.0

subnet 10.10.50.0 255.255.254.0
  ^
ERROR: % Invalid input detected at '^' marker.

[OK] object network NETWORK_OBJ_10.10.60.0_23
      object network NETWORK_OBJ_10.10.60.0_23
[ERROR] subnet 10.10.60.0 255.255.254.0

subnet 10.10.60.0 255.255.254.0
  ^
ERROR: % Invalid input detected at '^' marker.

[ERROR] nat (inside,outside) 1 source static NETWORK_OBJ_10.10.60.0_23 NETWORK_OBJ_10.10.60.0_23 destination static NETWORK_OBJ_10.10.50.0_23 NETWORK_OBJ_10.10.50.0_23

nat (inside,outside) 1 source static NETWORK_OBJ_10.10.60.0_23 NETWORK_OBJ_10.10           ^.60.0_23 destination static NETWORK_OBJ_10.10.50.0_23 NETWORK_OBJ_10.10.50.0_23

ERROR: % Invalid input detected at '^' marker.

```

Any ideas?

Specifically, this occurs when trying to enable **"NAT Exempt"** status on VPN profile of older ASA. The VPN shows ACTIVE and I can ping router LAN IP, but I can't hit remote LAN beyond (ie: 10.10.50.1 = SUCCESS, 10.10.50.6 = FAIL)