GRE Dynamic IP

Hey buddy please tell me is this possible to implement GRE tunnel with dynamic IP on one end-point if yes will you please get the information?

[Pathak]

Yes buddy this is possible to implement GRE tunnel with dynamic IP on one end-point for that I will get the information so that you can have idea.;

Here I’m telling you the process
By Using DMVPN.
For a simple single tunnel case it would look like:
Node1, that has the dynamic IP on interface Serial1/0 (could be any type of interface):

interface Tunnel0
bandwidth 1000
ip address 10.0.0.2 255.255.255.252
no ip redirects
ip mtu 1400
ip nhrp authentication test
ip nhrp map multicast 172.17.0.1
ip nhrp map 10.0.0.1 172.17.0.1
ip nhrp network-id 100000
ip nhrp holdtime 360
ip nhrp registration no-unique
ip nhrp nhs 10.0.0.1
no ip mroute-cache
delay 1000
cdp enable
tunnel source Serial1/0 <-- has dynamic IP address
tunnel destination 172.17.0.1
tunnel key 100000
tunnel protection ipsec profile vpnprof <-- for IPsec encryption (optional).

Node2, that has a static IP on interface Serial 2/0 (could be any type of interface):
interface Tunnel0
bandwidth 1000
ip address 10.0.0.1 255.255.255.0
ip mtu 1400
ip nhrp authentication test
ip nhrp map multicast dynamic
ip nhrp network-id 100000
ip nhrp holdtime 360
ip nhrp server-only
ip tcp adjust-mss 1360
cdp enable
tunnel source Serial2/0 <-- has IP address 172.17.0.1
tunnel mode gre multipoint
tunnel key 100000
tunnel protection ipsec profile vpnprof <-- for IPsec encryption (optional).
NHRP does the work of informing the Node2 about Node1's dynamic IP address