Este documento descreve um exemplo de configuração de Captura de Pacotes Integrados (EPC - Embedded Packet Capture) que captura quadros de até 1550 bytes em um buffer de captura circular de 10 megabytes de interfaces GigabitEthernet 0/0 e GigabitEthernet 0/1.
O EPC é um recurso de captura de pacotes integrado que permite aos administradores de rede capturar pacotes que fluem para, através ou a partir do dispositivo e analisá-los localmente ou salvá-los e exportá-los (para uma ferramenta como o Wireshark) para análise offline.
Não existem requisitos específicos para este documento.
As informações neste documento são baseadas no Cisco IOS® Software Release 15.x.
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.
Esta configuração captura quadros de até 1550 bytes em um buffer de captura circular de 10 MB das interfaces GigabitEthernet 0/0 e GigabitEthernet 0/1:
!-- Define a capture buffer.
monitor capture buffer pcap-buffer1 size 10000 max-size 1550
!-- Define a capture point.
monitor capture point ip cef pcap-point1 g0/0 both
monitor capture point ip process-switched pcap-point2 both
!-- Associates the capture point with the capture buffer
!-- so that packets captured from the specified capture
!-- point can be dumped to the associated capture buffer.
monitor capture point associate pcap-point1 pcap-buffer1
monitor capture point associate pcap-point2 pcap-buffer1
!-- Repeat the same steps for second interface.
monitor capture buffer pcap-bufferA size 10000 max-size 1550
monitor capture point ip cef pcap-pointA g0/1 both
monitor capture point ip process-switched pcap-pointB both
monitor capture point associate pcap-pointA pcap-bufferA
monitor capture point associate pcap-pointB pcap-bufferA
!-- Optionally you can specify an access-list in order to capture
!-- only interesting traffic as defined by access-lists 110 and 120.
monitor capture buffer pcap-buffer1 filter access-list 110
monitor capture buffer pcap-bufferA filter access-list 120
!-- Enable the capture point in order to start packet data capture.
monitor capture point start pcap-point1
monitor capture point start pcap-point2
monitor capture point start pcap-pointA
monitor capture point start pcap-pointB
!-- Verify the configuration.
show monitor capture point all
show monitor capture buffer all
!-- Disable the capture point, and stop the packet data capture process.
monitor capture point stop pcap-point1
monitor capture point stop pcap-point2
monitor capture point stop pcap-pointA
monitor capture point stop pcap-pointB
!-- Export the data for analysis.
monitor capture buffer pcap-buffer1 export tftp://192.0.2.100/1.cap
monitor capture buffer pcap-bufferA export tftp://192.0.2.100/A.cap
No momento, não há procedimento de verificação disponível para esta configuração.
Atualmente, não existem informações disponíveis específicas sobre Troubleshooting para esta configuração.
Revisão | Data de publicação | Comentários |
---|---|---|
1.0 |
07-Feb-2014 |
Versão inicial |