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Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide
OL-2239-03
AppendixB Resolving Common Image Installation Problems
Determining the IP Address of the TFTP Server on Windows 95
Step1 From the toolbar, select Start and then Run.
Step2 Type winipcfg and then click OK to display the IP configuration dialog box.
Determining the IP Address of the TFTP Server on a UNIX Workstation
Step1 Enter the command netstat -in. The IP addresses of the interfaces on your station appear.
Step2 Select the IP address for the interface that goes into the router network.
Troubleshooting Problems During Software Transfer
Resolving Error Message "Text checksum verification failure" During the Copy
If you have seen many "." instead of "!" during the copy, you may see a message similar to the following
example:
COPY: Text checksum verification failure
TFTP from 172.17.247.195 failed/aborted
Verifying checksum... invalid (expected 0x62B7,
computed 0x60B9)
If you enter a show flash command, you may see something similar to the following example:
Router# show flash
PCMCIA flash directory:
File Length Name/status
1 3437967 c1600-sy-mz.120-8.0.2.T
2 3489036 c1600-y-l.112-19.P1
3 290304 c1600-y-l.112-18.P [invalid checksum]
In both cases, a checksum failure indicates that the file has not been properly copied into the memory
and you need to copy it again. First, verify that the file you copied to the TFTP server is the same size
as the original file. (Be aware that the size is listed in bytes in the router and is sometimes listed in
kilobytes in TFTP servers.) If the network is very busy, you may also see this behavior; try the copy again
when the network is not so loaded, or establish a direct Ethernet connection between the TFTP server
and the router to download the file.
Resolving Error Message "error opening tftp"
This is an example of the error message:
Router# copy tftp flash
Address or name of remote host [172.17.0.5]?
Source filename [rsp-dsv-mz.112-19.P1.bin]?
Destination filename [rsp-dsv-mz.112-19.P1.bin]?
Accessing tftp://172.17.0.5/rsp-dsv-mz.112-19.P1.bin...
%Error opening tftp://172.17.0.5/rsp-dsv-mz.112-19.P1.bin (No such file or directory)