ZyXEL Communications 100 Series User Manual
Chapter 2 Features and Applications
ZyWALL USG 100/200 Series User’s Guide
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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
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).
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
-> 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).
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
-> AS -> SNAT -> IPSec E -> Routing -> BWM -> Encap -> VLAN -> Ethernet
2.3 Applications
These are some example applications for your ZyWALL. See also
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.
travelers to provide secure access to your network. You can also set up additional connections
to the Internet to provide better service.