ZyXEL Communications ZYWALL USG 2000 Support Notes page 5

F01. How to add a policy route? ................................................................................ 199
F02. How to configure local loopback in ZyWALL USG 2000? ............................... 199
F03. How to configure a NAT? .................................................................................. 203
F04. After I installed a HTTP proxy server and set a http redirect rule, I still can't
access web. Why? ...................................................................................................... 204
F05. How to limit some application (for example, FTP) bandwidth usage? ............. 204
F06. What's the routing order of policy route, dynamic route, and static route and
direct connect subnet table? ....................................................................................... 204
F07. Why ZyWALL USG 2000 cannot ping the Internet host, but PC from LAN side
can browse internet WWW? ...................................................................................... 205
F08. Why can't I ping to the, Internet, after I shutdown the primary WAN interface?205
F09. Why the virtual server or port trigger does not work? ....................................... 205
F10. Why port trigger does not work? ....................................................................... 205
F11. How do I use the traffic redirect feature in ZyWALL USG 2000? .................... 206
F12. Why can't ZyWALL learn the route from RIP and/or OSPF? ........................... 206
G. VPN and Certificate ...................................................................................................... 207
G01. Why can't the VPN connections dial to a remote gateway? .............................. 207
G02. VPN connections are dialed successfully, but the traffic still cannot go through
the IPsec tunnel. ......................................................................................................... 207
G03. Why ZyWALL USG 2000 VPN tunnel had been configured correctly and the
VPN connection status is connected but the traffic still can not reach the remote
VPN subnet? ............................................................................................................... 207
G04. VPN connections are dialed successfully, and the policy route is set. But the
traffic is lost or there is no response from remote site. .............................................. 208
G05. Why don't the Inbound/Outbound traffic NAT in VPN work? ......................... 208
H. Firewall FAQ ................................................................................................................. 209
H01. Why doesn't my LAN to WAN or WAN to LAN rule work? ........................... 209
H02. Why does the intra-zone blocking malfunction after I disable the firewall? .... 209
H03. Can I have access control rules to the device in firewall? ................................ 209
I. Application Patrol FAQ................................................................................................... 210
I01. What is Application Patrol? ................................................................................ 210
I02. What applications can the Application Patrol function inspect? ........................ 210
I03. Why does the application patrol fail to drop/reject invalid access for some
applications? ............................................................................................................... 211
I04. What is the difference between "Auto" and "Service Ports" settings in the
Application Patrol configuration page? ..................................................................... 212
I05. What is the difference between BWM (bandwidth management) in Policy Route
All contents copyright (c) 2008 ZyXEL Communications Corporation.
ZyWALL USG 2000 Support Notes
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