F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices NAT and ALG Configuration Guide-6PW100

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56BConfiguring static NAT
Static NAT supports NAT multiple-instance as long as the VPN instance of an IP address is provided.
Static NAT supports two modes: one-to-one and net-to-net.
119BConfiguring one-to-one static NAT
One-to-one static NAT translates a private IP address into a public IP address.
To configure one-to-one static NAT:
Ste
p
Command
1. Enter system view.
system-view
2. Configure a one-to-one static NAT
mapping.
nat static [ acl-number ] local-ip [ vpn-instance local-name ]
global-ip [ vpn-instance global-name ]
3. Enter interface view.
interface interface-type interface-number
4. Enable static NAT on the interface. nat outbound static [ track vrrp virtual-router-id ]
120BConfiguring net-to-net static NAT
Net-to-net static NAT translates a private network into a public network.
To configure net-to-net static NAT:
Ste
p
Command
1. Enter system view.
system-view
2. Configure a net-to-net static NAT mapping.
nat static [ acl-number ] net-to-net local-network
[ vpn-instance local-name ] global-network
[ vpn-instance global-name ] { mask-length | mask }
3. Enter interface view.
interface interface-type interface-number
4. Enable static NAT on the interface. nat outbound static [ track vrrp virtual-router-id ]
57BConfiguring dynamic NAT
Dynamic NAT support NAT multiple-instance as long as the VPN instance of an IP address is provided.
121BConfiguration prerequisites
• Configure an ACL to specify IP addresses permitted to be translated. For more information about
ACL, see Access Control Configuration Guide.
• Determine whether to use an interface's IP address as the translated source address.
{ To select the address of an interface as the translated address, use Easy IP.
{ To select an address from an address pool as the translated address, use No-PAT or NAPT for
dynamic address translation. No-PAT is used in many-to-many address translation but does not
translate TCP/UDP port numbers. NAPT allows for many-to-one address translation by
translating also TCP/UDP port numbers.
• Determine a public IP address pool for address translation.
• Determine whether to translate port information.