Atel IWE1200A-G, Руководство пользователя

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3.4.4.2. Static DHCP Mappings
Fig. 58. Static DHCP mappings.
IP addresses of servers are often static so that clients could always locate the servers by the static IP
addresses. By
Static DHCP Mappings , you can ensure that a host will get the same IP address when
it requests one from the DHCP server. Therefore, instead of configuring the IP address of an intranet
server manually, you can configure the server to obtain an IP address by DHCP and it is always as-
signed the same IP address.
To always assign a static IP address to a specific DHCP client:
1. Specify the MAC address of the DHCP client and the IP address to be assigned to it. Then, give
a description for this mapping.
2. Select the corresponding Enabled check box.
3.4.5. Dynamic DNS
Fig. 59. Dynamic DNS settings.
With the help of dynamic DNS (DDNS) services provided by dyndns.org or no-ip.com , you can make
your device automatically register the IP address it obtains dynamically by PPPoE or DHCP with the
DDNS servers. DDNS is useful if you want to set up a Web server whose IP address is dynamically
obtained rather than statically configured.
Choose your DDNS service provider from the Account type drop-down list, choose the WAN inter-
face on which the DDNS client operates, and specify the DDNS domain name , User name , and
Password you have registered with your service provider. The DDNS client of the gateway periodi-
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