![ZyXEL Communications P-2612HW-F1 - Скачать руководство пользователя страница 284](http://html1.mh-extra.com/html/zyxel-communications/p-2612hw-f1/p-2612hw-f1_user-manual_944584284.webp)
Chapter 14 VPN
P-2612HW Series User’s Guide
284
cannot use DNS servers on the LAN or from the ISP since these DNS servers
cannot resolve domain names to private IP addresses on the remote network
The following figure depicts an example where three VPN tunnels are created from
ZyXEL Device A; one to branch office 2, one to branch office 3 and another to
headquarters. In order to access computers that use private domain names on the
headquarters (HQ) network, the ZyXEL Device at branch office 1 uses the Intranet
DNS server in headquarters. The DNS server feature for VPN does not work with
Windows 2000 or Windows XP.
Figure 170
VPN Host using Intranet DNS Server Example
If you do not specify an Intranet DNS server on the remote network, then the VPN
host must use IP addresses to access the computers on the remote network.
14.9.9 ID Type and Content
With aggressive negotiation mode (see
), the ZyXEL
Device identifies incoming SAs by ID type and content since this identifying
information is not encrypted. This enables the ZyXEL Device to distinguish
between multiple rules for SAs that connect from remote IPSec routers that have
dynamic WAN IP addresses. Telecommuters can use separate passwords to
simultaneously connect to the ZyXEL Device from IPSec routers with dynamic IP
addresses (see
for a telecommuter configuration
example).
Regardless of the ID type and content configuration, the ZyXEL Device does not
allow you to save multiple active rules with overlapping local and remote IP
addresses.
Remote
IPSec Router
HQ
10.1.1.1/200
Intranet DNS
10.1.1.10
ISP DNS Servers
212.54.64.170
212.54.54.171
Internet
LAN
DNS:212.54.64.170
212.54.64.171
A
VPN DNS: 10.1.1.10
= VPN Tunnel
2
192.168.1.1/50
3
172.16.1.1/50
1
Содержание P-2612HW-F1 -
Страница 2: ......
Страница 8: ...Safety Warnings P 2612HW Series User s Guide 8...
Страница 10: ...Contents Overview P 2612HW Series User s Guide 10...
Страница 22: ...Table of Contents P 2612HW Series User s Guide 22...
Страница 24: ...24...
Страница 56: ...Chapter 3 Wizards P 2612HW Series User s Guide 56...
Страница 88: ...88...
Страница 120: ...Chapter 6 WAN Setup P 2612HW Series User s Guide 120...
Страница 136: ...Chapter 7 LAN Setup P 2612HW Series User s Guide 136...
Страница 168: ...Chapter 8 Wireless LAN P 2612HW Series User s Guide 168...
Страница 184: ...Chapter 9 Network Address Translation NAT P 2612HW Series User s Guide 184...
Страница 250: ...Chapter 12 Firewall P 2612HW Series User s Guide 250...
Страница 290: ...Chapter 14 VPN P 2612HW Series User s Guide 290...
Страница 320: ...Chapter 15 Certificates P 2612HW Series User s Guide 320...
Страница 324: ...Chapter 16 Static Route P 2612HW Series User s Guide 324...
Страница 356: ...Chapter 19 Dynamic DNS Setup P 2612HW Series User s Guide 356...
Страница 382: ...Chapter 21 Universal Plug and Play UPnP P 2612HW Series User s Guide 382...
Страница 384: ...384...
Страница 406: ...Chapter 23 Logs P 2612HW Series User s Guide 406...
Страница 458: ...458...
Страница 494: ...Appendix B Pop up Windows JavaScripts and Java Permissions P 2612HW Series User s Guide 494...
Страница 530: ...Appendix D Wireless LANs P 2612HW Series User s Guide 530...
Страница 547: ...Index P 2612HW Series User s Guide 547...