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Try changing the 'filename' statement to:
option option-67 "/tftpboot/platinum.cm";
As for tcpdump, you could try:
tcpdump -vv -x -s 1518 port 67 or port 68
That should catch both client and server messages although you could
probably omit one of the 'or' branches and get the same effect.
I've had limited luck using the 'filename' option. I still owe Ted a
tcpdump for it but I never seem to get around to it. I was able to work
around it though, with 'option option-67' and that was the last I
visited 'filename'. If you send a tcpdump to the list, I'll forward it
on to the UBR900 team if it appears to be Cisco's bug.
In the meantime, I just tested it, and option 67 works with 11.3.7
(old!) so I'm sure it will work with newer images too.
Thanks,
Matthew
"Joseph W. Breu" wrote:
>
> *** From dhcp-server -- To unsubscribe, see the end of this message. ***
>
> Hello all,
>
> I am having from dhcp server troubles here. We are testing the
> Cisco uBR900 DOCSIS cable modems here. They use DHCP to get their IP,
> filename, etc. The part that is not working is passing the filename to
> the client.
>
> Before I go much further, what is the tcpdump command to dump the
> dhcp packets, and how would I then decode them to figure out what is going
> wrong?
>
> Here is a part of my config file. Please comment, criticize, etc...
>
> -----------------------
> shared-network DOCSIS {
> subnet 10.129.238.128 netmask 255.255.255.192 {
> range 10.129.238.145 10.129.238.157;
> default-lease-time 600;
> max-lease-time 7200;
> option subnet-mask 255.255.255.240;
> option broadcast-address 10.129.238.159;
> option routers 10.129.238.158;
> option time-servers 206.29.xxx.x;
> option time-offset -21600;
> option option-128 ce:1d:ee:01;
> }
> group {
> filename "/tftpboot/platinum.cm";
> host docsis1 {
> hardware ethernet 0:10:7b:6b:5d:89;
> fixed-address 10.129.238.146;
> }
> host docsis2 {
> hardware ethernet 0:60:97:40:0a:c3;
> fixed-address 10.129.238.147;
> }
> }
> }
> ---------------------
>
> --
> Thanks,
> -Joseph W. Breu
>
> ---------------------------------------------------------------------
> Joseph W. Breu Linux/UNIX Administrator / Cedar Falls Utilities
> phone: (319) 268-5221 Utility Parkway, Cedar Falls, Iowa 50613
> pager: (319) 235-4209 NIC: jwb96 [EMAIL PROTECTED] [EMAIL PROTECTED]
> ---------------------------------------------------------------------
>
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--
---
------
Matthew Levine
Quality Assurance (SW Initiatives - Broadband)
Cisco Systems, Santa Cruz http://www.cisco.com/
[EMAIL PROTECTED] (831) 457 - 5431
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