Quote:
Originally Posted by JohnR
No - I'm saying that COX will often need to release THEIR ARP cache if you switch between several devices connected to the cable modem if you don't power it off for less than 6-8 hours  . This has happened to me several times when installing equipment on COX Biz class lines.
(also knew that comment would get you out of bed  )
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It did sir my good sir

, and please allow me to clarify, they are releasing the ARP stored within YOUR modem, not our CMTS equipment, and depending on the modem, the memory sizes do vary, and this may become a splinter in your operation.
Sadly that is the nature of the beast and is not specific to COX, all ISP that use broadband technology with static ip capabilities have the same issues. Just imagine if you were managing a 1500 work station environment and you used static routing with a self constructed ARP tables inside your routers and you decided to fat finger a number or two.
You are however correct about having to unplug it if you do not want to call in. Some modems however do have resets on the back which should clear all info and depending on the modem you can just access the menu by going to 192.168.100.1 and clearing/resetting the info. Other then that you are correct if its not unplugged for about 6 hours it will not clear itself unless you call in.
The only variable to this is if you do not have a static IP and are configured for DHCP, which is typically a 24 hour lease on a IP address or someone else get assigned the IP while the modem is unplugged.
Thanks for giving me flash backs while recovering
