Cisco Cisco IOS Software Release 12.4(2)XB6 Références techniques
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Book Title
OL-14681-01
Chapter Cisco Broadband Wireless Gateway 1.1 Command Reference, IOS Release 12.4(15)XL2
debug ip packet
debug ip packet
To display general IP debugging information and IP security option (IPSO) security transactions, use the
debug ip packet command in privileged EXEC mode. To disable debugging output, use the no form of
this command.
debug ip packet command in privileged EXEC mode. To disable debugging output, use the no form of
this command.
debug ip packet [access-list-number] [detail] [dump]
no debug ip packet [access-list-number]
Syntax Description
Command Modes
Privileged EXEC
Usage Guidelines
If a communication session is closing when it should not be, an end-to-end connection problem can be
the cause. The debug ip packet command is useful for analyzing the messages traveling between the
local and remote hosts. IP packet debugging captures the packets that are process switched including
received, generated and forwarded packets. IP packets that are switched in the fast path are not captured.
the cause. The debug ip packet command is useful for analyzing the messages traveling between the
local and remote hosts. IP packet debugging captures the packets that are process switched including
received, generated and forwarded packets. IP packets that are switched in the fast path are not captured.
IPSO security transactions include messages that describe the cause of failure each time a datagram fails
a security test in the system. This information is also sent to the sending host when the router
configuration allows it.
a security test in the system. This information is also sent to the sending host when the router
configuration allows it.
Caution
Because the debug ip packet command generates a substantial amount of output and uses a substantial
amount of system resources, this command should be used with caution in production networks. It
should only be enabled when traffic on the IP network is low, so other activity on the system is not
adversely affected. Enabling the detail and dump keywords use the highest level of system resources of
the available configuration options for this command, so a high level of caution should be applied when
enabling either of these keywords.
amount of system resources, this command should be used with caution in production networks. It
should only be enabled when traffic on the IP network is low, so other activity on the system is not
adversely affected. Enabling the detail and dump keywords use the highest level of system resources of
the available configuration options for this command, so a high level of caution should be applied when
enabling either of these keywords.
access-list-number
(Optional) The IP access list number that you can specify. If the
datagram is not permitted by that access list, the related debugging
output is suppressed. Standard, extended, and expanded access lists
are supported. The range of standard and extended access lists is from
1 to 199. The range of expanded access lists is from 1300 to 2699.
datagram is not permitted by that access list, the related debugging
output is suppressed. Standard, extended, and expanded access lists
are supported. The range of standard and extended access lists is from
1 to 199. The range of expanded access lists is from 1300 to 2699.
detail
(Optional) Displays detailed IP packet debugging information. This
information includes the packet types and codes as well as source and
destination port numbers.
information includes the packet types and codes as well as source and
destination port numbers.
dump
(Hidden) Displays IP packet debugging information along with raw
packet data in hexadecimal and ASCII forms. This keyword can be
enabled with individual access lists and also with the detail keyword.
packet data in hexadecimal and ASCII forms. This keyword can be
enabled with individual access lists and also with the detail keyword.
Note
The dump keyword is not fully supported and should be used
only in collaboration with Cisco Technical Support. See the
caution notes below, in the usage guidelines, for more
specific information.
only in collaboration with Cisco Technical Support. See the
caution notes below, in the usage guidelines, for more
specific information.