SSH Tunnelling

[Si MPS]

Ok, i'm pretty pig ignorant on tunnelling so i need some help. Essentially, my dillema is this. We have a management server that i want to be able to SCP to, but the problem is that I cannot SCP directly to this server, I have to connect to my VPN in the datacenter to SCP onto it, so what i want to do is create an SSH tunnel between my machine and jumpbox B to allow me to SCP onto the Management server.

Authentication method is via public key/private key pair for Jumpboxes and a Username and Password for Management Server.

My Machine > Jumpbox A > Jumpbox B > Management Server

My question is, is there a way i can tunnel and SSH tunnel via A+B to allow me to SCP directly to the Management server?

And if so, how do i do this? I've tried a couple of articles but they have confused me slightly

 

[Si MPS]

the reason i don't want to vpn in to SCP is because i have to disconnect my PC from the LAN and then connect it to the internet because i cannot get to that paticular concentrator over the LAN.

i managed to do it anyway, after a lot of fiddling i ended up calling on some help from a guy in the unix team, although i've got a further dillema now

i've got my nested tunnel set up, and if i SSH to localhost:forwardedport i get my SSH session, good times, however whenever i try and SCP i get a connection refused. i can definitely SCP to my destination box via the VPN, at first i thought it might have been the IDS sensors in the firewalls, but i can get through there fine via the VPN and not via the tunnel.

it's aching my brain, oh, and i am not a 'criminal', wind it in