Configuring Remote Access for AN and Passport ARN Routers1-18 308614-14.20 Rev 00• A TFTP server that contains the kernel file (krnl_arn.exe for the ARN orkrnl_an.exe for the AN/ANH) or a network configuration file customized forthe AN/ANH or ARN routerCompared with Netboot, Directed Netboot offers the following advantages:• Creates less network traffic• Is generally fasterDirected Netboot is usually reserved for starting AN/ANH and ARN routers afterthe initial startup because you need to know the exact location of the startup files.During Directed Netboot, AN/ANH and ARN routers transfer files from a TFTPserver directly, bypassing negotiation with a BootP server for the IP address andpath names of the startup files.Local BootLocal-booting the startup files for routine startups allows you to:• Minimize the time it takes the router to bootIn most configurations, however, the difference between the two options isonly a few seconds. Typically, local-booting takes two to three minutes.• Minimize line usageObtaining files locally prevents an increase in network traffic during thestartup process.When you choose the Local Boot option for routine startups, AN/ANH and ARNrouters read the IP addresses from the local configuration file and assign them tothe appropriate interfaces.Steps for Completing Startup OptionsThis section summarizes the steps for completing these startup options:• EZ-Install• Netboot• Directed Netboot• Local Boot
