self.client = paramiko.SSHClient()
hostkey = self.ssh_hostkey.split(' ')
self.client.get_host_keys().add(self.ip, hostkey[0], paramiko.RSAKey(data=base64.b64decode(hostkey[1])))
privkey_file = io.StringIO()
privkey_file.write(self.ssh_privkey)
privkey_file.seek(0)
privkey = paramiko.RSAKey.from_private_key(privkey_file)
try:
    self.client.connect(
        hostname=self.ip,
        username='root',
        pkey=privkey,
        password=self.router_password, # will try private key first, then password
        allow_agent=False,
        look_for_keys=False,
    )
    self.last_connect = time.strftime("%Y-%m-%d_%H:%M:%S", time.gmtime())
    print_msg(1, "Connected to {}".format(self.nickname))
except paramiko.ssh_exception.AuthenticationException:
    self.client = None