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User manual Airlink, model CDMA/1x

Manafacture: Airlink
File size: 1003.03 kb
File name: 6afbb8a2-32f7-4ada-b007-728fc9b439e2.pdf
Language of manual:en
Free link for this manual available at the bottom of the page



manual abstract


Once the Raven’s IP has been updated in IP Manager, it can be contacted via name. If the IP address is needed, you can use the domain name to determine the IP address. Note: The fully qualified domain name of the Raven will be a subdomain of the domain used by the IP Manager server. As a free service, Airlink maintains an IP Manager server which can be used for any AirLink modem. The domain is earlink.com and is used in all the samples below. Configuring the Raven for Dynamic IP To configure the Dynamic IP settings in your Raven so that it will use IP Manager, you can use AT commands (page 53), using direct serial communication or Telnet, Wireless ACE (page 10), and ACE Net (page 11) using a template built from Wireless ACE. To configure your AirLink modem to be addressed by name, the modem needs to have 4 elements configured. In Wireless ACE, select Dynamic IP to configure your modem to use IP Manager. FIGURE 1. Wireless ACE: Dynamic IP (IP Manager configuration) 1.Modem name: The name you want for the modem. 2.Domain: The domain name to be used by the modem. 3.IP Manager IP Address: The IP or domain name of the dynamic DNS server which is running IP Manager. Note: To use the name here instead of the IP, you need to have DNS set up in your Raven (page 19). 4.IP Manager update interval: How often you want the address sent to IP Manager. If this is set to zero, the modem will only send an update if the IP changes (i.e. if the modem is reset or is assigned a different IP). You can configure a second dynamic server as a backup, secondary, or alternate server. Note: For the Modem Name, you should use something which is unique but also easy to remember. Your company name or the intended function of the modem are recommended. If you have more than one modem, you can append a number for each. Restrictions for Modem Name •Must begin with a letter or number •Can include a hyphen (-) •Cannot contain spaces •Must be no longer than 20 characters total DNS: Using Names Instead of IP addresses A domain name is a name of a server or device on the Internet which is associated, generally, with an IP address. In a way, a domain name is like the street address of your house with the phone number being like the IP address. You can contact the house either by going to the address (name) or by calling the phone number (IP address). Domain Name Service (DNS) is a network service which translates, or redirects, the IP address, allowing someone to contact that address via the name. A DNS server is registered to handle all addresses of a particular domain (much like the post office for a particular town or city is known to the post offices of all other towns and cities and is authorized to give the addresses of locations in its own location). Configuring DNS The Raven has an internal DNS resolver with which it can query DNS servers in order to translate names into IP addresss which it can then use internally. Generally, when your Raven receives its IP address from Verizon, it will also be configured to use Verizon’s DNS servers to use for resolving (or translating) names to IP addresses. In that case, the only one which is not overwritten is the alternate DNS. You can use AT commands (page 53), Wireless ACE (page 10), and ACE Net (page 11) using a template built from Wireless ACE to configure DNS in your Raven. FIGURE 2. Wireless ACE: DNS *DNS1 and *DNS2 - Set these to your primary and secondary DNS servers. These maybe be overwritten by Verizon when your Raven 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 forced. Otherwise the Raven will only send updates when it is reset, powered up, or the IP address granted by the network changes. Note: If you will be using your Raven to communicate with another AirLink modem and both are using IP Manager to translate dynamic IP addresss 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 Verizon’s DNS servers decreasing the time between IP address change and address resolution. PPP-Peer The Raven uses the unqualified domain name of “ppp-peer” when it is PPP or SLIP address mode to resolve the address of the device or computer connected via PPP or SLIP address. If the Raven is not in PPP or SLIP address mode, “ppp-peer” will resolve to 0.0.0.0. CHAPTER 5Keepalive It is not uncommon for your Raven to be disconnected from Verizon after an extended period of inactivity. This is generally a feature intended to reduce your charges for inactive use. Keepalive is used to test and maintain the Raven’s connection to Verizon by pinging an IP address after a specified period of inactivity. Keepalive is recommended for users who have a remote terminated modem that infre...


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