Tente isto:
ssh -L *:8080:myremoteserver.com:8080 -N watson
trecho de man ssh
para a opção -L
:
By default, the local port is bound in accordance with the GatewayPorts setting. However, an explicit bind_address may be used to bind the connection to a specific address. The bind_address of “localhost” indicates that the listening port be bound for local use only, while an empty address or ‘*’ indicates that the port should be available from all interfaces.