Cisco Cisco IOS Software Release 12.4(2)XB6 Références techniques

001557: 19:59:30: IP: s=10.4.9.6 (FastEthernet0/0), d=10.4.9.151 (FastEthernet03

001558: 19:59:30:     TCP src=179, dst=11001, seq=3736598846, ack=2885081910, wH

001559: 20:00:09: CEF: Try to CEF switch 10.4.9.151 from FastEthernet0/0

001560: 20:00:09: IP: s=10.4.9.4 (FastEthernet0/0), d=10.4.9.151 (FastEthernet03

001561: 20:00:09:     TCP src=179, dst=11000, seq=163035693, ack=2948141027, wiH

001562: 20:00:14: CEF: Try to CEF switch 10.4.9.151 from FastEthernet0/0

001563: 20:00:14: IP: s=10.4.9.6 (FastEthernet0/0), d=10.4.9.151 (FastEthernet03

001564: 20:00:14:     ICMP type=8, code=0

001565: 20:00:14: IP: s=10.4.9.151 (local), d=10.4.9.6 (FastEthernet0/0), len 1g

001566: 20:00:14:     ICMP type=0, code=0

The format of the output with detail keyword provides additional information, such as the packet type, 
code, some field values, and source and destination port numbers.

 describes the significant fields shown in the display.

The following is sample output from the debug ip packet command enabled with the dump keyword:

Router# debug ip packet dump

IP packet debugging is on (detailed) (dump)

21:02:42: IP: s=10.4.9.6 (FastEthernet0/0), d=10.4.9.4 (FastEthernet0/0), len 13

07003A00:                       0005 00509C08            ...P..

07003A10: 0007855B 4DC00800 45000064 001E0000  ...[M@..E..d....

07003A20: FE019669 0A040906 0A040904 0800CF7C  ~..i..........O|

07003A30: 0D052678 00000000 0A0B7145 ABCDABCD  ..&x......qE+M+M

07003A40: ABCDABCD ABCDABCD ABCDABCD ABCDABCD  +M+M+M+M+M+M+M+M

07003A50: ABCDABCD ABCDABCD ABCDABCD ABCDABCD  +M+M+M+M+M+M+M+M

07003A60: ABCDABCD ABCDABCD ABCDABCD ABCDABCD  +M+M+M+M+M+M+M+M

07003A70: ABCDABCD ABCDABCD ABCDABCD           +M+M+M+M+M+M    

21:02:42: IP: s=10.4.9.4 (local), d=10.4.9.6 (FastEthernet0/0), len 100, sending

07003A00:                       0005 00509C08            ...P..

07003A10: 0007855B 4DC00800 45000064 001E0000  ...[M@..E..d....

07003A20: FF019569 0A040904 0A040906 0000D77C  ...i..........W|

07003A30: 0D052678 00000000 0A0B7145 ABCDABCD  ..&x......qE+M+M

07003A40: ABCDABCD ABCDABCD ABCDABCD ABCDABCD  +M+M+M+M+M+M+M+M

07003A50: ABCDABCD ABCDABCD ABCDABCD ABCDABCD  +M+M+M+M+M+M+M+M

07003A60: ABCDABCD ABCDABCD ABCDABCD ABCDABCD  +M+M+M+M+M+M+M+M

CEF:

Indicates that the IP packet is being processed by CEF.

IP:

Indicates that this is an IP packet.

s=10.4.9.6 (FastEthernet0/0)

Indicates the source address of the packet and the name of the 
interface that received the packet.

d=10.4.9.151 (FastEthernet03) Indicates the destination address of the packet and the name of the 

interface through which the packet is being sent out on the network.

TCP src=

Indicates the source TCP port number.

dst=

Indicates the destination TCP port number. 

seq=

Value from the TCP packet sequence number field.

ack=

Value from the TCP packet acknowledgement field. 

ICMP type=

Indicates ICMP packet type.

code=

Indicates ICMP return code.