ZyXEL Communications ZYWALL USG 2000 Support Notes page 6

and App. Patrol ? ........................................................................................................ 213
I06. Do I have to purchase iCards specifically for using AppPatrol feature? ............ 214
I07. Can I configure different access level based on application for different users? 214
I08. Can I migrate AppPatrol policy and bandwidth management control from
ZLD1.0x to ZLD2.0x? ............................................................................................... 214
J. lDP FAQ ......................................................................................................................... 215
J01. Why doesn't the IDP work? Why has the signature updating failed? ................ 215
J02. When I use a web browser to configure the IDP, sometimes it will popup
"wait data timeout". .................................................................................................... 215
J03. When I want to configure the packet inspection (signatures), the GUI becomes
very slow. ................................................................................................................... 215
J04. After I select "Auto Update" for IDP, when will it update the signatures? ........ 215
J05. If I want to use IDP service, will it is enough if I just complete the registration
and turn on IDP? ........................................................................................................ 215
J06. What are the major design differences in IDP in ZLD1.0x and latest IDP/ADP
in ZLD2.0x? ............................................................................................................... 215
J07. Does IDP subscription have anything to do with AppPatrol? ............................ 216
J08. How to get a detailed description of an IDP signature? ..................................... 217
J09. After an IDP signature updated, does it require ZyWALL to reboot to make new
signatures take effect? ................................................................................................ 217
K. Content Filtering FAQ ................................................................................................... 218
K01. Why can't I enable external web filtering service? Why does the external web
filtering service seem not to be working? .................................................................. 218
K02. Why can't I use MSN after I enabled content filter and allowed trusted
websites only? ............................................................................................................ 218
L. Device HA FAQ ............................................................................................................. 219
L01. What does the "Preempt" mean? ....................................................................... 219
L02. What is the password in Synchronization? ........................................................ 219
L03. What is "Link Monitor" and how to enable it? .................................................. 219
L04. Can Link Monitor of Device HA be used in backup VRRP interfaces? ............ 220
L05. Why do both the VRRP interfaces of master ZW USG 2000 and backup ZW
USG 2000 are activated at the same time? ................................................................. 220
M. User Management FAQ ................................................................................................ 221
M01. What is the difference between user and guest account?.................................. 221
M02. What is the "re-authentication time" and "lease time"? ................................... 221
M03. Why can't I sign in to the device? .................................................................... 221
M04. Why is the TELNET/SSH/FTP session to the device disconnected? Why is the
All contents copyright (c) 2008 ZyXEL Communications Corporation.
ZyWALL USG 2000 Support Notes
6