FRR NHRP problem.

[Stanislav-Vas]

Hello team!
I made a lab, exactly as in the documentation of FRR NHRP DMVPN.
https://docs.frrouting.org/en/latest/nhrpd.html
I found that Spoke-to-Spoke traffic does not pass, it always goes through the Hub.
test-hub-1# show ip nhr
gre1 dynamic 10.0.0.1 192.0.2.2 192.0.2.2 T test-spk-1
gre1 dynamic 10.0.0.3 203.0.113.102 203.0.113.102 UT test-spk-3
gre1 local 10.0.0.254 198.51.100.1 198.51.100.1 -
gre1 dynamic 10.0.0.2 203.0.113.2 203.0.113.2 UT test-spk-2
test-spk-2# show ip nhrp
Iface Type Protocol NBMA Claimed NBMA Flags Identity
gre1 nhs 10.0.0.254 198.51.100.1 198.51.100.1 T test-hub-1
gre1 local 10.0.0.2 203.0.113.2 203.0.113.2 -
test-spk-2# show ip nhrp shortcut
% No entries
test-spk-1# show ip nhrp shortcut
% No entries
What could be the problem?