
Troubleshooting Network Boot Problems
114084 Rev. A A-15
6.
Make sure that the configuration filename and path are correct in the
bootptab file.
For example, the following bootptab line indicates that the configuration file
named AN_Bost.cfg is in the /rte3/cfg directory path:
T129="/rte3/cfg/AN_Bost.cfg"
7. Read the bootptab file carefully for misspellings or other errors.
Compare it to the sample file shown in Chapter 3 (refer to Figure 3-1).
Displaying the BOOTP Server’s IP Routes
Enter the following command at the UNIX command line of the BOOTP server to
display the IP address of the next hop to a netbooting router:
netstat -rn | grep -i -n
<IP_address>
<IP_address>
is the IP address of the netbooting router’s network.
| is the vertical bar key (the UNIX pipe command).
For example, enter
netstat -rn | grep -i -n 192.32.155 to display the IP address
of the next hop to the network address 192.32.155.
If the BOOTP server is receiving RIP advertisements of the netbooting router’s
network, a message such as the following appears:
121:192.32.155.0 192.32.13.53 UG 0 0 le0
The number 121 is the number of the entry in the workstation’s static routing
table. The number
192.32.155.0 is the IP address of the destination network.
The number
192.32.13.53 is the address of the next-hop router. If the next-hop
router is unavailable or wrong, refer to “Setting Up Static Routes to Next-Hop
Routers” in Chapter 3.
Displaying the Number of Packets Forwarded and Dropped
This section describes how to display the number of BOOTP packets forwarded
and dropped by a router. Perform this procedure for each router between the router
and the BOOTP server.
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