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“Sticky” has nothing to do with saving it in startup-config. It is simply meant to learn the address dynamically from the directly connected devices, instead of having to put each one of them manually (and likely make a mistake). Sticky addresses are in running config and therefore require a “copy run start” or “wr” to survive a reboot.

—–Original Message—– From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Gary Duncanson Sent: Thursday, January 31, 2008 2:31 AM To: cindy.a.tanner@gmail.com Cc: ccielab@groupstudy.com Subject: Re: Port-security - quick one
There we are then.
Thanks —– Original Message —– From: “cindy tanner” To: “‘Gary Duncanson’” Cc: Sent: Wednesday, January 30, 2008 11:16 PM Subject: RE: Port-security - quick one
> Gary, > The short answer to the quick question is ‘yes’ > > Cindy > > —–Original Message—– > From: Gary Duncanson [mailto:gary.duncanson@googlemail.com] > Sent: Wednesday, January 30, 2008 9:15 AM > To: cindy tanner > Cc: ccielab@groupstudy.com > Subject: Re: Port-security - quick one > > Hi Cindy, > > Do dynamic sticky and static achieve more or less the same thing then is > this sense? > > Always nice to know alternatives. > > Rgds > Gary > —– Original Message —– > From: “cindy tanner” > To: “‘Fang Gao’” ; “‘Darren Johnson’” > > Cc: > Sent: Wednesday, January 30, 2008 2:50 AM > Subject: RE: Port-security - quick one > > >> Just a quick add to the response below. >> >> If you configure ’switchport port-sec max 5′, Five macs will be >> dynamically >> learned. If you reboot, they will be lost. However, if you add the >> ’sticky’ command, they will stay after reboot. >> >> Good Luck on the 21st! >> >> Cindy >> >> —–Original Message—– >> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of >> Fang >> Gao >> Sent: Monday, January 28, 2008 9:41 PM >> To: Darren Johnson >> Cc: ccielab@groupstudy.com >> Subject: Re: Port-security - quick one >> >> Hi, Darren, >> >> A static mac entry is saved in running-configure, as well as >> startup-config >> if you copy runing to startup-config. It will not be lost after reboot. >> >> I did the following at cat 3560. >> >> >> interface FastEthernet0/20 >> >> switchport mode access >> >> switchport port-security >> >> switchport port-security mac-address 0050.04fd.9f73 >> >> After reboot, the above configuration is still in Fa0/20. >> >> You can try it on your lab. It is simple. >> >> >> HTH >> >> Fang >> On Jan 28, 2008 5:22 AM, Darren Johnson >> wrote: >> >>> Hey all. I’m stuggling to get me head around this. With port-security, >>> if I configure a static mac entry (switchport port-security >>> mac-address >>> xxxx.xxxx.xxxx) then it is added to the running-config only - doesn’t >>> survive a reboot. With ’sticky’ port-security, the dynamically learned >>> MAC is added to the running config. However, this too will not survive >>> a reboot. >>> Therefore, whats the difference?!? >>> >>> With BOTH methods, you STILL NEED TO SAVE the RUNNING-CONFIG - or they >>> are lost (of course the sticky will get re-learned). The only >>> difference I can see between the two, is that: >>> Sticky automatically adds the MAC address to running-config Static >>> configuration requires manual entry of the MAC address to >>> running-config >>> >>> Any thoughts/comments? >>> >>> Dazzler >>> >>> P.S. My lab is 21st Feb Brussells, anyone else out there that day? >>> >>> >>> >>> ___________________________________________________________ >>> Inbox full of spam? Get leading spam protection and 1GB storage with >>> All New Yahoo! Mail. http://uk.docs.yahoo.com/nowyoucan.html >>> >>> ______________________________________________________________________ >>> _ Subscription information may be found at: >>> http://www.groupstudy.com/list/CCIELab.html >> >> _______________________________________________________________________ >> Subscription information may be found at: >> http://www.groupstudy.com/list/CCIELab.html >> >> _______________________________________________________________________ >> Subscription information may be found at: >> http://www.groupstudy.com/list/CCIELab.html