When AR1200 connects to a remote third party vendor by using PPP and needs to use a domain name to access the Internet ,AR as a LAC ,it can get the IP address from LNS ,but DNS.
On this situation ,please remember to obtain a DNS .
There are 3 ways to get DNS:
[AR-Virtual-Template1]ppp ipcp dns ?
IP_ADDR<X.X.X.X> Specify primary DNS server IP address
admit-any Accept any DNS address peer suggested
request Request DNS addresses from peer
[AR-Virtual-Template1]ppp ipcp dns request
The “ppp ipcp dns admit-any” command is to configure AR1200 to accept the DNS server address specified by the remote device or run the “ppp ipcp dns request” command to configure the AR1200 to request a DNS server address from the remote device.
The “ppp ipcp dns ”command cannot be used together with “ppp ipcp dns admit-any “or “ppp ipcp dns request”.
After this can get a DNS ,and the PC can visit some web site with URL.
When a host connects to the AR1200 by using PPP and needs to use a domain name to access the Internet, the AR1200 must specify a DNS server address for the host. This command also can be used on serial interfaces, including common serial interfaces, synchronous serial interfaces created by using CE1/PRI interfaces and CT1/PRI interfaces, Async interfaces.