Chapter 5 WAN Setup
P-791R v2 User’s Guide
63
5.1.4.1 IP Assignment with PPPoA or PPPoE Encapsulation
If you have a dynamic IP, then the
IP Address
and
ENET ENCAP Gateway
fields are not
applicable (N/A). If you have a static IP, then you
only
need to fill in the
IP Address
field and
not
the
ENET ENCAP Gateway
field.
5.1.4.2 IP Assignment with RFC 1483 Encapsulation
In this case the IP Address Assignment
must
be static with the same requirements for the
IP
Address
and
ENET ENCAP Gateway
fields as stated above.
5.1.4.3 IP Assignment with ENET ENCAP Encapsulation
In this case you can have either a static or dynamic IP. For a static IP you must fill in all the
IP
Address
and
ENET ENCAP Gateway
fields as supplied by your ISP. However for a
dynamic IP, the ZyXEL Device acts as a DHCP client on the WAN port and so the
IP
Address
and
ENET ENCAP Gateway
fields are not applicable (N/A) as the DHCP server
assigns them to the ZyXEL Device.
5.1.5 Nailed-Up Connection (PPP)
A nailed-up connection is a dial-up line where the connection is always up regardless of traffic
demand. The ZyXEL Device does two things when you specify a nailed-up connection. The
first is that idle timeout is disabled. The second is that the ZyXEL Device will try to bring up
the connection when turned on and whenever the connection is down. A nailed-up connection
can be very expensive for obvious reasons.
Do not specify a nailed-up connection unless your telephone company offers flat-rate service
or you need a constant connection and the cost is of no concern
5.1.6 NAT
NAT (Network Address Translation, RFC 1631) is the translation of the IP address of a host in
a packet, for example, the source address of an outgoing packet, used within one network to a
different IP address known within another network.
5.2 Metric
The metric represents the "cost of transmission". A router determines the best route for
transmission by choosing a path with the lowest "cost". RIP routing uses hop count as the
measurement of cost, with a minimum of "1" for directly connected networks. The number
must be between "1" and "15"; a number greater than "15" means the link is down. The
smaller the number, the lower the "cost".
The metric sets the priority for the ZyXEL Device’s routes to the Internet. If any two of the
default routes have the same metric, the ZyXEL Device uses the following pre-defined
priorities:
• Normal route: designated by the ISP (see
• Traffic-redirect route (see
)
• WAN-backup route, also called dial-backup (see
)
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Страница 7: ...Safety Warnings P 791R v2 User s Guide 7 This product is recyclable Dispose of it properly...
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Страница 20: ...Table of Contents P 791R v2 User s Guide 20...
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Страница 46: ...Chapter 2 Introducing the Web Configurator P 791R v2 User s Guide 46...
Страница 53: ...Chapter 3 Wizard Setup for Internet Access P 791R v2 User s Guide 53...
Страница 54: ...Chapter 3 Wizard Setup for Internet Access P 791R v2 User s Guide 54...
Страница 58: ...Chapter 4 Point to point Configuration P 791R v2 User s Guide 58...
Страница 59: ...59 PART II Network Setup WAN Setup 61 LAN Setup 83 Network Address Translation NAT Screens 93...
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Страница 82: ...Chapter 5 WAN Setup P 791R v2 User s Guide 82...
Страница 104: ...Chapter 7 Network Address Translation NAT Screens P 791R v2 User s Guide 104...
Страница 105: ...105 PART III Security Filter 107...
Страница 106: ...106...
Страница 110: ...110...
Страница 114: ...Chapter 9 Static Route P 791R v2 User s Guide 114...
Страница 118: ...Chapter 10 Dynamic DNS Setup P 791R v2 User s Guide 118...
Страница 128: ...Chapter 11 Remote Management Configuration P 791R v2 User s Guide 128...
Страница 140: ...Chapter 12 Universal Plug and Play UPnP P 791R v2 User s Guide 140...
Страница 141: ...141 PART V Maintenance System 143 Logs 149 Tools 153 Diagnostic 159...
Страница 142: ...142...
Страница 148: ...Chapter 13 System P 791R v2 User s Guide 148...
Страница 158: ...Chapter 15 Tools P 791R v2 User s Guide 158...
Страница 162: ...162...
Страница 168: ...Chapter 17 Introducing the SMT P 791R v2 User s Guide 168...
Страница 172: ...Chapter 18 General Setup P 791R v2 User s Guide 172...
Страница 178: ...Chapter 19 WAN Setup P 791R v2 User s Guide 178...
Страница 194: ...Chapter 22 Remote Node Setup P 791R v2 User s Guide 194...
Страница 198: ...Chapter 23 Static Route Setup P 791R v2 User s Guide 198...
Страница 226: ...Chapter 25 Filter Configuration P 791R v2 User s Guide 226...
Страница 228: ...Chapter 26 SNMP Configuration P 791R v2 User s Guide 228...
Страница 230: ...Chapter 27 System Password P 791R v2 User s Guide 230...
Страница 240: ...Chapter 28 System Information Diagnosis P 791R v2 User s Guide 240...
Страница 268: ...Chapter 31 IP Routing Policy Setup P 791R v2 User s Guide 268...
Страница 272: ...Chapter 32 Schedule Setup P 791R v2 User s Guide 272...
Страница 278: ...Chapter 33 Troubleshooting P 791R v2 User s Guide 278...
Страница 280: ...280...
Страница 285: ...Appendix A Product Specifications P 791R v2 User s Guide 285 Figure 194 Masonry Plug and M4 Tap Screw...
Страница 286: ...Appendix A Product Specifications P 791R v2 User s Guide 286...
Страница 320: ...Appendix E IP Address Assignment Conflicts P 791R v2 User s Guide 320...
Страница 324: ...Appendix F Common Services P 791R v2 User s Guide 324...
Страница 330: ...Appendix G Command Interpreter P 791R v2 User s Guide 330...
Страница 342: ...Appendix H Log Descriptions P 791R v2 User s Guide 342...
Страница 348: ...Appendix J Legal Information P 791R v2 User s Guide 348...
Страница 354: ...Appendix S Customer Support P 791R v2 User s Guide 38...