SSH jumphost error: channel 0: open failed: administratively prohibited: open failed

I'm trying to open an ssh connection with following command:

ssh -J user@X.X.X.X user@10.10.1.1

with following error:

channel 0: open failed: administratively prohibited: open failed
stdio forwarding failed
ssh_exchange_identification: Connection closed by remote host

At the Server there is PermitTunnel active. The OS of the server is Ubuntu 17.04.

Do you have an hint for me what there is wrong?

1 Answer

The problem waw the firewall. ICMP was blocked. After acepting the icmp traffic the ssh jumphost is working as it should.