Xiamen Caimore Communication Technology Co.,Ltd
2 F, 37#, Wanghai Road, Software Park 2, Xiamen,China (361009)
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Tel:+86 592 5901215
web:www.caimore.com/emain.asp
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1. DHCP start IP to end IP are must continuous, and in the same subnet with
gateway, also can’t include gateway local IP, otherwise, DHCP server can’t work
normally.
2. Lapped DHCP servers can’t be existed in the same LAN. If there are multi
devices supply DHCP server function in the same LAN, it can cause IP address
can’t assign normally in the system. It needs to stop one DHCP server.
3. If use PPPOE, please don’t use “local interface 1” DHCPD.
4.1.6
Dynamic
Domain
Name
Server
(DDNS)
Configuration
DDNS is to set dynamic IP obtained by gateway when dialing up to a
certain domain name to bind the continuous IP obtained by wireless dial-up
with the certain domain name.
If wireless gateway opens DDNS, after wireless gateway obtaining a new
IP by dialing up successfully every time, it will send new obtained dynamic IP
address to customer dynamic domain name server to realize binding updating
between the settled domain name of dynamic domain name server and
gateway IP address.
Use DDNS function can solve the short-coming that gateway new obtained
different IP address of every dial-up can’t be used as server. If customer needs
to use wireless gateway as server, and communicate with equipment on
customer side (
such as DTU
), it needs to open this DDNS function, meanwhile,
it needs to input dynamic domain name to corresponding configuration option
on customer side equipment, in this way, customer side equipment obtain
wireless gateway IP address through DDNS from Domain name server before
communicate with gateway every time, then communicate according to
obtaining changing wireless gateway IP address.
This gateway supports Dyndns, 88IP and Oray dynamic domain name
system. Default doesn’t use DDNS.
Picture 4-1-11
