===== D-Link 2540U настройка NAT из CLI =====

  telnet 10.215.130.93
  Trying 10.215.130.93...
  Connected to 10.215.130.93.
  Escape character is '^]'.
  BCM96338 ADSL Router
  Login: admin
  Password: 
  > sh
  #
  # iptables -I FORWARD -p tcp --dst 10.215.130.1 --dport 443 -j ACCEPT
  # iptables -t nat -I PREROUTING -p tcp --dport 443 -j DNAT --to-destination 10.215.130.1:443

Проверяю
  # iptables -L -n
  Chain FORWARD (policy ACCEPT)
  target     prot opt source               destination         
  ACCEPT     tcp  --  0.0.0.0/0            10.215.130.1        tcp dpt:443