ZyWALL 70 User’s Guide
Appendix I SIP Passthrough
631
ZyXEL SIP ALG
• SIP clients can be connected to the LAN, WLAN or DMZ. A SIP server must be on the
WAN. The WLAN and DMZ are not available on all models.
• You can make and receive calls between the LAN and the WAN, between the WLAN
and the WAN and/or between the DMZ and the WAN. You cannot make a call between
the LAN and the LAN, between the LAN and the DMZ, between the LAN and the
WLAN, between the DMZ and the DMZ, and so on.
• The SIP ALG allows UDP packets with a port 5060 destination to pass through.
• The ZyWALL allows SIP audio connections.
Figure 397
ZyWALL SIP ALG
SIP ALG and NAT
The ZyWALL dynamically creates an implicit port forwarding rule for SIP traffic from the
WAN to the LAN.
The SIP ALG on the ZyWALL supports all NAT mapping types, including
One to One
,
Many to One
,
Many to Many Overload
and
Many One to One
.
SIP ALG and Firewall
The ZyWALL creates an implicit temporary firewall rule for the dynamic RTP port on the
WAN to the SIP client device on the LAN. The firewall rule is created for both directions to
allow voice packets. The firewall rule is deleted when the call is terminated.
SIP ALG and Multiple WAN
When the ZyWALL has two WAN ports and uses the second highest priority WAN port as a
back up, it drops SIP connections when the primary WAN port connection fails. The
ZyWALL does not automatically change the SIP connection to the secondary WAN port.
Signaling session
over UDP port 5060
Audio session using RTP
Содержание ZyWALL 70
Страница 1: ...ZyWALL 70 Internet Security Appliance User s Guide Version 3 64 3 2005 ...
Страница 2: ......
Страница 38: ...ZyWALL 70 User s Guide 38 List of Figures ...
Страница 46: ...ZyWALL 70 User s Guide 46 List of Tables ...
Страница 74: ...ZyWALL 70 User s Guide 74 Chapter 2 Introducing the Web Configurator ...
Страница 92: ...ZyWALL 70 User s Guide 92 Chapter 3 Wizard Setup ...
Страница 102: ...ZyWALL 70 User s Guide 102 Chapter 4 LAN Screens ...
Страница 108: ...ZyWALL 70 User s Guide 108 Chapter 5 Bridge Screens ...
Страница 130: ...ZyWALL 70 User s Guide 130 Chapter 6 Wireless LAN ...
Страница 136: ...ZyWALL 70 User s Guide 136 Chapter 7 WAN Screens Figure 45 WAN General ...
Страница 155: ...ZyWALL 70 User s Guide Chapter 7 WAN Screens 155 Figure 55 Dial Backup Setup ...
Страница 188: ...ZyWALL 70 User s Guide 188 Chapter 10 Firewall Screens Figure 71 Creating Editing A Firewall Rule ...
Страница 193: ...ZyWALL 70 User s Guide Chapter 10 Firewall Screens 193 Figure 76 My Service Rule Configuration ...
Страница 234: ...ZyWALL 70 User s Guide 234 Chapter 13 Introduction to IPSec ...
Страница 246: ...ZyWALL 70 User s Guide 246 Chapter 14 VPN Screens Figure 112 VPN Rules IKE Gateway Policy Edit ...
Страница 252: ...ZyWALL 70 User s Guide 252 Chapter 14 VPN Screens Figure 113 VPN Rules IKE Network Policy Edit ...
Страница 275: ...ZyWALL 70 User s Guide Chapter 15 Certificates 275 Figure 125 My Certificate Details ...
Страница 294: ...ZyWALL 70 User s Guide 294 Chapter 16 Authentication Server Figure 136 Local User Database ...
Страница 314: ...ZyWALL 70 User s Guide 314 Chapter 17 Network Address Translation NAT ...
Страница 318: ...ZyWALL 70 User s Guide 318 Chapter 18 Static Route ...
Страница 324: ...ZyWALL 70 User s Guide 324 Chapter 19 Policy Route ...
Страница 340: ...ZyWALL 70 User s Guide 340 Chapter 20 Bandwidth Management ...
Страница 376: ...ZyWALL 70 User s Guide 376 Chapter 22 Remote Management ...
Страница 390: ...ZyWALL 70 User s Guide 390 Chapter 24 Logs Screens Figure 194 Log Settings ...
Страница 413: ...ZyWALL 70 User s Guide Chapter 25 Maintenance 413 Figure 216 Restart Screen ...
Страница 414: ...ZyWALL 70 User s Guide 414 Chapter 25 Maintenance ...
Страница 440: ...ZyWALL 70 User s Guide 440 Chapter 28 WAN and Dial Backup Setup ...
Страница 456: ...ZyWALL 70 User s Guide 456 Chapter 31 DMZ Setup ...
Страница 460: ...ZyWALL 70 User s Guide 460 Chapter 32 Route Setup ...
Страница 470: ...ZyWALL 70 User s Guide 470 Chapter 33 Remote Node Setup ...
Страница 522: ...ZyWALL 70 User s Guide 522 Chapter 39 System Information Diagnosis ...
Страница 538: ...ZyWALL 70 User s Guide 538 Chapter 40 Firmware and Configuration File Maintenance ...
Страница 550: ...ZyWALL 70 User s Guide 550 Chapter 42 Remote Management ...
Страница 558: ...ZyWALL 70 User s Guide 558 Chapter 43 IP Policy Routing ...
Страница 573: ...ZyWALL 70 User s Guide Chapter 45 Troubleshooting 573 Figure 360 Java Sun ...
Страница 574: ...ZyWALL 70 User s Guide 574 Chapter 45 Troubleshooting ...
Страница 582: ...ZyWALL 70 User s Guide 582 Appendix B Removing and Installing a Fuse ...
Страница 602: ...ZyWALL 70 User s Guide 602 Appendix D IP Subnetting ...
Страница 608: ...ZyWALL 70 User s Guide 608 Appendix F PPTP ...
Страница 626: ...ZyWALL 70 User s Guide 626 Appendix H Triangle Route ...
Страница 656: ...ZyWALL 70 User s Guide 656 Appendix K Importing Certificates ...
Страница 658: ...ZyWALL 70 User s Guide 658 Appendix L Command Interpreter ...
Страница 664: ...ZyWALL 70 User s Guide 664 Appendix M Firewall Commands ...
Страница 668: ...ZyWALL 70 User s Guide 668 Appendix N NetBIOS Filter Commands ...
Страница 674: ...ZyWALL 70 User s Guide 674 Appendix P Brute Force Password Guessing Protection ...
Страница 696: ...ZyWALL 70 User s Guide 696 Appendix R Log Descriptions ...