In this session of A Few Easy Steps, we will be Disabling NAT ALG for DNS on
a Cisco Router.
- You have terminal or console access to your Cisco device.
- You have NAT Enabled
- You do not need ALG to re-write DNS payloads to account for NAT
Our goals of this session are:
- Disable NAT ALG for DNS
Disable NAT ALG for DNS
! conf t ! no ip nat service alg tcp dns ! no ip nat service alg udp dns ! end ! copy running-config startup-config
Find out more about NAT ALG for DNS here.