DMVPN - nhrp map and nhs command syntax
When configuring DMVPN on a Cisco IOS router, there are several tunnel commands that are issued on the hub and spoke devices that can use differing syntaxes. For example, consider the following configuration excerpt from a spoke router:
ip nhrp map 192.168.0.1 126.96.36.199 ip nhrp map multicast 188.8.131.52 ip nhrp nhs 192.168.0.1
These commands can be completely replaced with the following single command:
ip nhrp nhs 192.168.0.1 nbma 184.108.40.206 multicast
This is because since IOS 15.1(2)T and later, the
ip nhrp nhs command has been expanded to support additional parameters.