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3
Interfaces
Configuration | Interfaces
This section lets you configure the three VPN Concentrator Ethernet interface modules and, if present,
two WAN module interface ports. You can also configure alarm thresholds for the power supply
modules.
Model 3005 comes with two Ethernet interfaces. Models 3015–3080 come with three Ethernet
interfaces. Optionally, all models can have a WAN interface module installed, with two T1/E1 WAN
interface ports.
• Ethernet 1 (Private) is the interface to your private network (internal LAN).
• Ethernet 2 (Public) is the interface to the public network.
• Ethernet 3 (External) is the interface to an additional LAN (Models 3015–3080 only).
• WAN interface Port A is a T1/E1 interface, usually to the public network.
• WAN interface Port B is a T1/E1 interface, usually to the public network.
Configuring an Ethernet interface includes supplying an IP address, applying a traffic-management
filter, setting speed and transmission mode, and configuring RIP and OSPF routing protocols.
Configuring a WAN interface includes selecting the interface type (T1 or E1), supplying an IP address,
applying a traffic-management filter, configuring RIP and OSPF routing protocols, and configuring T1-
or E1-specific parameters. You can also enable PPP Multilink.
If you connect to a WAN via an ISP, configure that connection on Port A. You can use Port B to provide
PPP Multilink for increased bandwidth. You cannot connect Port B to a WAN from a different ISP. If
you connect to private WANs, you can configure independent WAN connections on Port A and Port B.
Note:
Interface settings take effect as soon as you apply them. If the system is in active use, changes may affect
tunnel traffic.
The table shows all installed interfaces and their status.
3-2
VPN 3000 Concentrator Series User Guide
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