Hello,
FRR has support for "ip nhrp registration no-unique" for DMVPN/NHRP which is not included in VyOS today as a configuration option. Requesting to add support for this.
https://docs.frrouting.org/en/latest/nhrpd.html
Option allows for:
Allow the client to not set the unique flag in the NHRP packets. This is useful when a station has a dynamic IP address that could change over time.
Thanks