Configure and start a packet capture switch-1#monitor capture PACKET interface Gi1/0/10 both access-list PACKET-ACLģ. Switch-1(config-ext-nacl)#permit ip host 172.16.10.10 host 10.10.10.10 Please note that having deny ip any any at the end has resulted in packets not being captured, so please don't add deny statement at the end.Ģ. Configure the ACL (optional) switch-1(config)#ip access-list extended PACKET-ACL Packet capture is configured in exec mode so, the configuration is not stored within the running-configuration and will not remain in place after a system reload.ġ. The following example shows, how to capture all the traffic between the laptop and both servers. The capture can be performed on physical interfaces, sub-interfaces, and tunnel interfaces. The captures can also be exported as a pcap file to allow for further analysis. Once the packets are captured and saved, they can be viewed in a summary or detailed view on the CLI. The packets are then stored in a buffer temporarily or you can optionally save them to the local flash. Once you configured the capture, the switch/router captures the packets sent and received. The process is very straightforward and only takes a couple of minutes to set it up. This enables us to easily take captures directly from the switch and export them for analysis. Plain passwords on the command line are a security risk.The Embedded Packet Capture feature was introduced in IOS-XE 15.2(4)S. $ ssh 'echo | sudo -S tcpdump -U -s0 not port 22' -i eth0 -w - | sudo wireshark -k -i.

You can check and find the proper one via $ ip link. It depends on its type and count off different interfaces. And the network interface (eth0) in not necessarily eth0. Port is automatically chosen by protocol specification, so not necessarily required. Replace content in angle brackets to your needs. This enables root privileges for tcpdump on the host to be sniffed remotely. If you have no root access via ssh on your host being sniffed to, like on a raspberrypi, and for good reason you don't want to enable it or you simply can't do it, for whatever reason, there is a slightly different approach of (alternative to answer to that from we do here is to pipe the sudo password into the sudo command which executes its argument tcpdump.

Cisco remote capture wireshark mac