active / passive setup(connected switch/router arp cache timeout)

PAlmart — Wed, 06 Mar 2013 20:09:25 GMT

I was starting to setup an active/passive system and once the HA was enabled, I lost connection to and from the internet. I found it was an ARP cache on my router. Now if my PA's failover the outside IP will startup and issue a new MAC for that IP and re-arp on router? I was looking at my arp cache timeouts, I though I might have to tweek this?

anyone have any thoughts on this?

Thanks

Re: active / passive setup(connected switch/router arp cache timeout)

dburns — Wed, 06 Mar 2013 21:12:03 GMT

When you enabled HA the MAC of the PANW changed to a virtual address. When a A/P cluster fails over the MAC doesn't change but will send a gratuitous arp and your switch/router *should* pick that up.

Dominic

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active / passive setup(connected switch/router arp cache timeout)

Re: active / passive setup(connected switch/router arp cache timeout)