NOTE: This feature is not supported on FS-3032.
During debugging, you might want to see whether a particular type of packet was received on an interface on the switch.
- Set up an access control list (ACL) on the switch with the interface that you want to monitor. See ACL. This ACL is the ingress interface.
- Set up a mirror for the “internal” interface.
For example, if you want to monitor interface port17 for any IP packet (ether-type 0x800) with a destination subnet of 10.10.10/24 and a source subnet of 20.20.20/24, use the following commands.
# show switch acl ingress
config switch acl ingress
set mirror "internal"
set dst-ip-prefix 10.10.10.0 255.255.255.0
set ether-type 0x0800
set src-ip-prefix 126.96.36.199 255.255.255.0
set ingress-interface "port17"
set status active
To examine the packets that have been sampled in the example, use the following command:
# diagnose sniffer packet sp17 none 6