User guide

Chapter 1. Router Concepts 27
L2TP Tunneling Database
ATOM.DAT
SDSL.DAT
DMT.DAT
IPSEC.DAT
IKE.DAT
AUTOEXEC.BAT : Autoexec file of commands to run on next reboot.
AUTOEXEC.OLD: Autoexec file that has run already
Note: Users should not delete any of these files, unless advised by Tech Support.
Any file contained within the system may be retrieved or replaced using the TFTP protocol. Specifically,
configuration files and the operating system upgrades can be updated. Only one copy for the router software is
allowed in the routerÕs FLASH memory.
Refer to Chapter 6. Managing the Router on page 267 for details on software upgrades, booting router software,
copying configuration files, and restoring router software to FLASH memory.