Edge X16 IP Conflict

[fwguy]

I have 100+ Firewalls is various locations and every so often I am unable to connect to the PC's behind the FW due to an IP Conflict in the event log. 2 VPN appliances show up in the "Active Computers" view with the same MAC address. I have contacted sofaware to no avail. I hope that maybe you guys could give me a hand with it. Firmware 5.0.92X ( it appears that the problems happen on this firmware) I have upgraded the firmware remotely but it didn't help. I have removed the VPN (Site to site) and it didn't help. I normally build a new one and ship it out. I receive the broken one back and after a reset and a new config it works.

Please let me know if anyone has experienced this and if there is anything I do remotely to fix it.

Thanks,

[RayPesek]

Have you ever written down the MAC addresses to see if there is any correlation to anything? I'm wondering if the same MAC address keeps showing up over and over regardless of the appliance.

Ray

[fwguy]

Thanks for the reply Ray,

AFAIK, they show 1 number off from the WAN MAC on the FW. I haven't seen the same MAC between different FW's.

WAN MAC on the FW
xx:xx:xx:xx:xx:40

"Active computers tab"

VPN-1 Edge xx.xx.xx.1
xx:xx:xx:xx:xx:3e

xx.xx.xx.1
xx:xx:xx:xx:xx:3e

I checked a couple of other FWs and they show the difference but there is only 1 VPN-Edge MAC in the active computers tab. Instead of the 2 I show here.

[RayPesek]

I'm confused. Doesn't Active Computers just show what's connected to the LAN interfaces of the Edge? It's been awhile since I looked, though.

Ray

[SnAp227]

Originally Posted by RayPesek

I'm confused. Doesn't Active Computers just show what's connected to the LAN interfaces of the Edge? It's been awhile since I looked, though.

Yes. Only LAN/DMZ (or wan2) interfaces are shown on the active computers section.