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P-661H/HW Series User’s Guide
Chapter 4 WAN Setup
79
4.1.4 IP Address Assignment
A static IP is a fixed IP that your ISP gives you. A dynamic IP is not fixed; the ISP assigns you
a different one each time. The Single User Account feature can be enabled or disabled if you
have either a dynamic or static IP. However the encapsulation method assigned influences
your choices for IP address and ENET ENCAP gateway.
4.1.4.1 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.
4.1.4.2 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.
4.1.4.3 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.
4.1.5 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
4.1.6 NAT
NAT (Network Address Translation - NAT, 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.
Summary of Contents for P-661H Series
Page 2: ......
Page 5: ...P 661H HW Series User s Guide Certifications 5...
Page 10: ...P 661H HW Series User s Guide 10 Customer Support...
Page 44: ...P 661H HW Series User s Guide 44 Chapter 1 Getting To Know Your ZyXEL Device...
Page 76: ...P 661H HW Series User s Guide 76 Chapter 3 Wizards...
Page 108: ...P 661H HW Series User s Guide 108 Chapter 5 LAN Setup...
Page 132: ...P 661H HW Series User s Guide 132 Chapter 6 Wireless LAN...
Page 192: ...P 661H HW Series User s Guide 192 Chapter 10 Trend Micro Security Services...
Page 196: ...P 661H HW Series User s Guide 196 Chapter 11 Content Filtering...
Page 202: ...P 661H HW Series User s Guide 202 Chapter 12 Introduction to IPSec...
Page 230: ...P 661H HW Series User s Guide 230 Chapter 13 VPN Screens...
Page 234: ...P 661H HW Series User s Guide 234 Chapter 14 Static Route...
Page 246: ...P 661H HW Series User s Guide 246 Chapter 15 Bandwidth Management...
Page 250: ...P 661H HW Series User s Guide 250 Chapter 16 Dynamic DNS Setup...
Page 280: ...P 661H HW Series User s Guide 280 Chapter 19 System...
Page 290: ...P 661H HW Series User s Guide 290 Chapter 21 Tools...
Page 296: ...P 661H HW Series User s Guide 296 Chapter 23 Troubleshooting...
Page 300: ...P 661H HW Series User s Guide 300 Appendix A...
Page 304: ...P 661H HW Series User s Guide 304 Appendix C...
Page 326: ...P 661H HW Series User s Guide 326 Appendix E...
Page 328: ...P 661H HW Series User s Guide 328 Appendix F...
Page 334: ...P 661H HW Series User s Guide 334 Appendix G...
Page 368: ...P 661H HW Series User s Guide 368 Appendix K...
Page 376: ...P 661H HW Series User s Guide 376 Figure 219 Java Sun...