On 7/26/17, Aaron Gould <[email protected]> wrote: > Are you talking about like this ?
does "show ip arp 10.101.15.21" work? Lee > > > 3750#sh ip arp vlan 4000 > Protocol Address Age (min) Hardware Addr Type Interface > Internet 10.101.15.1 171 4055.3970.f265 ARPA Vlan4000 > Internet 10.101.15.7 171 0cd5.02c0.cd4c ARPA Vlan4000 > Internet 10.101.15.16 - 0013.8039.eac1 ARPA Vlan4000 > Internet 10.101.15.21 185 001c.5779.d841 ARPA Vlan4000 > > 3750#sh mac address-table dynamic | in 4055.3970.f265 > 4000 4055.3970.f265 DYNAMIC Gi1/0/26 > > -Aaron > > > -----Original Message----- > From: cisco-nsp [mailto:[email protected]] On Behalf Of > Scott Granados > Sent: Wednesday, July 26, 2017 11:16 AM > To: cisco-nsp <[email protected]> > Subject: [c-nsp] Basic IP to Port finding question on Cisco 3850 > > I think this is a basic question but Googling has not helped me much so I’m > hopeful someone can shed the clue light on me a bit. > > I’m trying to find the specific port an IP address is attached to on a 3850 > in L3 mode with SVI interfaces. SO for example if I do a show arp a.b.c.d > I’ll get the MAC and the SVI attached. If I do a show VLAN ID X I see the > port members but there are many, let’s say 10 or more per VLAN. Is there an > easy way to detect which port either the IP is received on or the MAC > address that is displayed in the show arp? Everything I’m doing seems to > show the SVI that’s in play but not the specific gig port that the device is > attached to and mapped to the VLAN as a member. This seems like the sort of > thing that would be easy to figure out but I’m stumped. Any pointers would > be most appreciated. > > Thanks and sorry for such a rudimentary question. > > Scott _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
