Sierra Wireless 2170042 - Manual (Page 10)

Rev A Dec.08 10
Figure 6: AceManager: DNS
*DNS1 and *DNS2 ‐ The primary and secondary DNS servers
set by your cellular provider when your modem gets its IP
address.
*DNSUSER ‐ Set this, if desired, to an additional DNS server
to query first before the primary or secondary (just as a hosts
file is queried first on a computer). If *DNSUSER is set to
0.0.0.0, it will be ignored.
*DNSUPDATE ‐ This command sets how often you want DNS
Updates to be requested. Otherwise the modem will only send
updates when it is reset, powered up, or the IP address is
granted by network changes.
Note: If you will be using your modem to communicate with another
AirLink modem and both are using IP Manager to translate dynamic
IP addresses to domain names, it is recommended that you set
*DNSUSER to the IP address for IP Manager. IP Manager’s updates
occur more frequently than your cellular provider’s DNS servers
decreasing the time between IP address change and address
resolution. Likewise, if your modem routinely needs to contact
another modem or device with a Dynamic DNS domain and that
modem or device frequently changes its IP address, you may need to
set *DNSUPDATE for frequent updates.
PPP-Peer
The Raven and PinPoint use the unqualified domain name of
“ppp‐peer” when it is in PPP or SLIP address mode to resolve
the address of the device or computer connected via PPP or
SLIP address. If the modem is not in PPP or SLIP address
mode, “ppp‐peer” will resolve to 0.0.0.0.