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T1/E1 WAN Configuration Guide Creating Access Lists and Policies

allow list <access list names> policy <access policy name>

All packets passed by the access list(s) entered and destined for the interface using the access policy listed

will be permitted to enter the router system. This allows for configurations to permit packets to a single

interface and not the entire system.

discard list <access list names> policy <access policy name>

All packets passed by the access list(s) entered and destined for the interface using the access policy listed

will be blocked from the router system. This allows for configurations to deny packets on a specified

interface.

allow list <access list names> self

All packets passed by the access list(s) entered and destined for any local interface on the unit will be

permitted to enter the router system. These packets are terminated by the unit and are not routed or

forwarded to other destinations. This access list can be used for external access to Telnet and the Web GUI.

discard list <access list names> self

All packets passed by the access list(s) entered and destined for any local interface on the unit will be

blocked from the router system. This allows for configurations to deny external access to the router on a

specified interface.

nat source list <access list names> address <IP address> overload policy <access policy name>

All packets passed by the access list(s) entered will be modified to replace the source IP address with the

entered IP address. The overload keyword allows multiple source IP addresses to be replaced with the

single IP address entered. This hides private IP addresses from outside the local network. The optional

policy keyword specifies that all packets passed by the access list(s) and destined for the interface using

the listed access policy will be modified to replace the source IP address with the entered IP address. This

hides private IP addresses from outside the local network.

nat source list <access list names> interface <interface> overload policy <access policy name>

All packets passed by the access list(s) entered will be modified to replace the source IP address with the

primary IP address of the listed interface. The overload keyword allows multiple source IP addresses to be

replaced with the single IP address of the specified interface. The optional policy keyword specifies that all

packets passed by the access list(s) and destined for the interface using the listed access policy will be

modified to replace the source IP address with the primary IP address of the listed interface. This hides

private IP addresses from outside the local network.

nat destination list <access list names> address <IP address>

All packets passed by the access list(s) entered will be modified to replace the destination IP address with

the entered IP address. The overload keyword is not an option when performing NAT on the destination IP

address; each private address must have a unique public address. This hides private IP addresses from

outside the local network.

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ADTRAN E1 Manual de usuario Pagina 11