Table of Contents

Viewing NAT Global Settings

 

and Statistics

. . . . . 59

Viewing NAT Rules and Rule Statistics

. . . . . 62

Viewing Current NAT Translations

. . . . . 63

Adding NAT Rules

. . . . . 66

The NAPT rule: Translating between private

 

and public IP addresses

. . . . . 66

The RDR rule: Allowing external access

 

to a LAN computer

. . . . . 68

The Basic rule: Performing 1:1 translations

. . . . . 72

The Filter rule: Configuring a BASIC rule

 

with additional criteria

. . . . . 74

The Bimap rule: Performing two-way translations

. . . . . 76

The Pass rule: Allowing specific addresses

 

to pass through untranslated

. . . . . 78

Configuring DNS Server Addresses . . . . . . . . . . 81

About DNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Assigning DNS Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Configuring DNS Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Configuring IP Routes . . . . . . . . . . . . . . . . . . . . . 85

Overview of IP Routes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 IP routing versus telephone switching . . . . . . . . . . . . . . 85 Hops and gateways . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 Using IP routes to define default gateways . . . . . . . . . . 87 Do I need to define IP routes? . . . . . . . . . . . . . . . . . . . . 87

Viewing the IP Routing Table . . . . . . . . . . . . . . . . . . . . . . . . . . 88 Adding IP Routes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Configuring the Routing Information Protocol . 93

RIP Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 When should you configure RIP? . . . . . . . . . . . . . . . . . . 94 Configuring the ADSL Barricade's Interfaces with RIP . . . . . . . 94 Viewing RIP Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Configuring the ATM Virtual Circuit . . . . . . . . . . 99

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SMC Networks SMC7204BRA manual Configuring DNS Server Addresses, Configuring IP Routes, Configuring the ATM Virtual Circuit