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SIGNAMAX LLC • www.signamax.eu
Debug IP Layer Packets
Configure the following command in the privilege user mode:
debug ip packet
debug ip packet [
acl
[detail[bytes
byte
]] | detail[bytes
byte
]]
no debug ip packet
Syntax
Description
Acl
Use ACL to filter the debug packets
Detail
Display some information of IP layer protocol
Bytes
Display the data in IP packets and the displayed range is 20-1500 bytes
【
【
【
【
Default status
】
】
】
】
Disabled
For example:
03:41:53:
INPUT:
from
fastethernet0,
dgramsiz=48,
totlen=48,
src=4.4.4.36,
dst=255.255.255.255
03:41:53: TTL=1, ID=0, DF=0, MF=0, offset=0, protocol=17
03:41:53: UDP: srcPort=711, dstPort=711, length=28, checksum=39671
03:41:53: 0000: 45 c0 00 30 00 00 00 00 01 11 00 00 04 04 04 24 ff ff ff ff
03:41:53: 0020: 02 c7 02 c7 00 1c 9a f7 00 01 00 10 88 88 88 88 00 00 25 cf
03:41:53: 0040: 0f 03 00 04 88 88 88 88
03:41:53: Delivered
The actions after the packets are sent to IP layer:
Syntax
Description
delivered
Delivered to the transmission layer
discarded
Discarded and the discarding reason can be got by viewing the IP layer statistics
forwarded
Forwarded
unforwarded
Not forwarded and the reason can be got by viewing the IP layer statistics
enqueued
Entering the output queue
Note
It is recommend to configure ACL to filter the unneeded packets before enabling the command.
Otherwise, shell may be unavailable because of displaying too much packet information.
ICMP Protocol
In the Internet Protocol stack, the Internet Control Message Protocol (ICMP) provides services
such as controls, error reports and network tests, etc. for other protocols in the Internet stack.
The Signamax switch supports RFC792, RFC950 and RFC1122.
The contents of this section are as follows:
Summary of Contents for 065-7434
Page 1: ...24 Port 10 100 L3 Switch Model 065 7434 Configuration Guide Revision A1 ...
Page 245: ...245 SIGNAMAX LLC www signamax eu Application Example Example of configuring DHCP Snooping ...
Page 302: ...302 SIGNAMAX LLC www signamax eu Default status no switching interface ...
Page 368: ......
Page 655: ...287 SIGNAMAX LLC www signamax eu Sub VLAN members in the system ...