74CHAPTER 7: ADVANCED CONFIGURATION
6In the Telephone Number 1 field, enter the telephone number you must dial in order to reach your ISP.
7(Optional) If your ISP has a second remote access number, enter it in the designated field, and select Alternate or Multilink from the
8Under Security, enter your ISP User ID and Password (these may be
9For Domain Name Service (DNS) IP Address(es), enter the Primary DNS address of your ISP in the Primary field, if required (that is, your ISP does not automatically supply these addresses upon establishing a connection). If there is a Secondary address, enter it in the Secondary field.
10Under Bandwidth Allocation, choose whether to always use one channel when dialing out to this private network, add the second channel as needed, or to always use both channels.
11Under Callback Parameters, check Enable Callback if you wish to have your private network’s remote access (receiving) device drop your call and immediately call you back whenever you connect to the network; otherwise, leave this and the remaining Callback fields at their defaults.
This function will only work properly if your Service Provider supports Callback functionality.
If you chose to enable Callback, make the following selections:
■Callback Delay: Callback Delay is the amount of time the ISP will wait before calling back this LAN Modem. By default this is set to 5 seconds.
■Callback Timeout: Callback Timeout is the amount of time that the LAN Modem will wait (beyond the Callback Delay) for the ISP to call back. By default this is 90 seconds.
■Callback Number: Enter your first analog telephone number (this is the number to which the ISP will place the Callback call). Note that if a different Callback number has been specified on the server end, the server callback number takes precedence.
■Callback Username and Password: Enter the username and password of the callback user. These values are used to verify the server’s authenticity to the client. Note that callback authentication is optional.
Under Miscellaneous, make the following selections.
12Choose whether or not you would like to use PPP Data Compression when transferring data.
13For Network Address Translation (NAT), your choice depends upon the IP addressing scheme (dynamic or static) used by the ISP that you will be accessing. Follow this rule of thumb:
■If you performed the IP Address check in Chapter 3 and optimized your computer for use with dynamic IP addressing or found that it was already optimized, choose Yes to leave NAT enabled
■If you performed the IP Address check and Set up your computer for static IP addressing, according to the instructions in “Setting Up Your Computer If You Have a Static IP Address,” then choose No to disable NAT.
