SSH port forwarding for IPs without change them to localhost

ssh-iptables-tunnel.py

ADDRESS_TO_FORWARD = [
    "1.2.3.4:8088",
]

CLIENT_HOST = "127.0.0.1"
CLIENT_PORT = 4444
REMOTE_HOSTNAME = "user@host"

ip_tables = []
ssh_forward_to = []
count = 0
for address in ADDRESS_TO_FORWARD:
    parts = address.split(':')
    ip = parts[0]
    port = int(parts[1])
    client_port = int(CLIENT_PORT + count)

    ip_tables.append("iptables -t nat -A OUTPUT -p tcp --dport %d -d %s -j DNAT --to-destination %s:%d" % (port, ip, CLIENT_HOST, client_port))
    ssh_forward_to.append("-L %s:%d:%s" % (CLIENT_HOST, client_port, address))
    count += 1


ssh_tunnel = "ssh -4 -o ExitOnForwardFailure=yes -N " + " ".join(ssh_forward_to) + " " + REMOTE_HOSTNAME
print("\n".join(ip_tables))
print(ssh_tunnel)