RPKI over SSH connection failed

[hudys365]

Hello,

I try to configure RPKI over SSH but FRR could't connect to SSH RTR server. It interesting that same config works on Ubuntu 24.

There is debug log

2025-01-14T14:27:28.984588+01:00 frr-rpki frrinit.sh[1183]: (2025/01/14 14:27:28:984474): RTR Socket: State: RTR_CONNECTING
2025-01-14T14:27:28.998345+01:00 frr-rpki frrinit.sh[1183]: (2025/01/14 14:27:28:998260): SSH Transport([email protected]:22): tr_ssh_open: opening SSH connection failed
2025-01-14T14:27:28.998524+01:00 frr-rpki frrinit.sh[1183]: (2025/01/14 14:27:28:998294): SSH Transport([email protected]:22): Socket closed
2025-01-14T14:27:28.998588+01:00 frr-rpki frrinit.sh[1183]: (2025/01/14 14:27:28:998298): RTR_MGR: Group(1) status changed to: RTR_MGR_ERROR
2025-01-14T14:27:28.998645+01:00 frr-rpki frrinit.sh[1183]: (2025/01/14 14:27:28:998302): RTR_MGR: No other inactive groups found
2025-01-14T14:27:28.998694+01:00 frr-rpki frrinit.sh[1183]: (2025/01/14 14:27:28:998306): RTR Socket: State: RTR_ERROR_TRANSPORT
2025-01-14T14:27:28.998736+01:00 frr-rpki frrinit.sh[1183]: (2025/01/14 14:27:28:998309): SSH Transport([email protected]:22): Socket closed
2025-01-14T14:27:28.998809+01:00 frr-rpki frrinit.sh[1183]: (2025/01/14 14:27:28:998312): RTR_MGR: Group(1) status changed to: RTR_MGR_ERROR
2025-01-14T14:27:28.998867+01:00 frr-rpki frrinit.sh[1183]: (2025/01/14 14:27:28:998315): RTR Socket: Waiting 5

Part of config file

rpki
 rpki retry_interval 5
 rpki cache ssh 172.30.10.251 22 rpki /etc/frr/ssh/id_rsa  preference 1
exit

Tested Frr version

frr/stable,now 10.2.1-0~deb12u1 amd64
frr/stable,stable-security 8.4.4-1.1~deb12u1 amd64

Could you help me please ?