Alcatel Carrier Internetworking Solutions 8800 User Manual

Troubleshooting BOOTP/DHCP/UDP Relay

Dshell

OmniSwitch Troubleshooting Guide

page 5-7

00  00  00  00  00  00  00  00   -- 00  00  00  00  00  00  00  63
82  53  63  35  01  03  32  04   -- c0  a8  14  9a  36  04  c0  a8
1e  05  39  02  02  4e  37  04   -- 01  1c  03  2b  3c  10  41  69
72  65  73  70  61  63  65  2e   -- 41  50  31  32  30  30  ff

In the example above, the BOOTP request was dropped because the number of seconds elapsed since the 
start of the process was not incremented (secs=0), and the forward delay was set to 3 seconds.

We got in a tweaked zero IP address packet on BSD socket shown below:

Recvd on bsd socket pkt from 0.0.0.0, rtr-port addr=20.20.20.200, 0x336860360
Received request packet for the bootp service on bsd socket   BOOTP REQ: secs=0
hops=0x0

 The BOOTP REQ field shows that we haven’t waited long enough. (The seconds shown is 0, when it 
should be greater than or equal to 3.)

handle_uevent_udprelay_cmm(d): received on  ipcp socket

relayDebug
handle_event_ipc_Ludprelay_cmm: num oef bytes received = v368elCMM =-1
handle_event_ni_udprelay_cmm: Recieved message from the NI

handle_event_ni_udprelay_cmm: Recieved message from the NI for regular UDP pack

Finally, the Dshell command bootpSizeCheck turns on/off the bootpSizeCheck function. (By default it is 
off.) To turn it on enter the following:

Working: [Kernel]-> bootpSizeCheck = 1

To turn it on enter the following:

Working: [Kernel]-> bootpSixeCheck = 0

Note. OS-6600 supports minimum of 64 byte size packets.