Clearing arp cache on sub interface (cisco)

[DJMK4]

Hi all,

Am I being stupid but not finding an option to clear the arpcache on a sub interface on a cisco device, the client has a sub interface with multiple arp entries, he has asked me to flush but hasnt provided me with a specific MAC/IP he wants to clear as he is replacing his firewall with a new one.

Can you not just clear the arp cache on the sub interface? I cant really find any method of doing this.

 

[V-Spec]

Works fine here on 15.4

CPE1#clear arp-cache interface g0/9.1
CPE1#

Can't remember with older IOS, but it seems fine with sub-if on newer versions,

 

[DJMK4]

Cool, thanks I will give it a go tomorrow