Yo Frank! On Tue, 31 May 2016 13:10:36 -0400 Frank Nicholas <[email protected]> wrote:
> > On May 31, 2016, at 12:18 PM, Gary E. Miller <[email protected]> wrote: > > > > RFC 826 defines ARP. It makes no mention of how long the timeout > > should be. > > > > Cisco uses 4 hours. > > > > I can not find the info on OS X. > > From `man 4 arp` on OS X (El Capitan): > > The ARP cache is stored in the system routing table as > dynamically-created host routes. The route to a directly-attached > Ethernet network is installed as a ``cloning'' route (one with the > RTF_CLONING flag set), causing routes to individual hosts on that > network to be created on demand. These routes time out periodically > (normally 20 minutes after validated; entries are not validated when > not in use). Wow, 20 mins, that is great. So we have: Cisco : 4 hours OS X: 20 minutes Linux: 60 seconds Vista: 15 to 45 seconds. Clearly no concensus... > Is that what you were looking for on OS X? Yes, thank you! RGDS GARY --------------------------------------------------------------------------- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 [email protected] Tel:+1 541 382 8588
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