Chapter 2 Features and Applications

2.2.2 Interface to Interface (To/From ZyWALL)

To: Ethernet -> VLAN -> Encap -> ALG -> DNAT -> Routing -> zFW -> ADP -> RM

From: RM -> Routing -> BWM -> Encap -> VLAN -> Ethernet

2.2.3 Interface to Interface (From VPN Tunnel)

This example shows the flow from a VPN tunnel though the ZyWALL, not to the ZyWALL or to another VPN tunnel (VPN concentrator).

Ethernet -> VLAN -> Encap -> ALG -> DNAT-> Routing -> zFW -> IPSec D -> ALG -> AC -> DNAT-> Routing -> FW -> IDP -> AP -> CF -> AV -> AS -> SNAT -> BWM -> Encap -> VLAN -> Ethernet

2.2.4 Interface to Interface (To VPN Tunnel)

This example shows the flow to a VPN tunnel from a source other than the ZyWALL or another VPN tunnel (VPN concentrator).

Ethernet -> VLAN -> Encap -> ALG -> DNAT-> Routing -> FW -> IDP -> AP -> CF -> AV -> AS -> SNAT -> IPSec E -> Routing -> BWM -> Encap -> VLAN -> Ethernet

2.3 Applications

These are some example applications for your ZyWALL. See also Chapter 6 on page 125 for configuration tutorial examples.

2.3.1 VPN Connectivity

Set up VPN tunnels with other companies, branch offices, telecommuters, and business travelers to provide secure access to your network. You can also set up additional connections to the Internet to provide better service.

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ZyWALL USG 100/200 Series User’s Guide