EIGRP Neighbor not on common subnet

من تا حالا به این مشکل برنخوردم اما امروز مستندات سیسکو رو خوندم، سیسکو میگه وقتی این پیام صادر میشه که، یک اینترفیس روتر EIGRP HELLO PACKET دریافت کنه با Source آی پی ارسال کننده در یک زیر شبکه (Subnet) نباشه ...

حاله میگه عموما دلیلش ایناست :

**These are the general cause for this error message:
**
Misconfiguration of the interfaces or switch ports or cabling problem.Mismatch of 
primary/secondary IP addresses on the neighbor interface.A switch/hub is leaking 
multicast packets to other ports.If using a LAN switch, the vlans may have joined 
routers together.Another router uses EIGRP advertising on the same subnet/vlan 
as this router and is misconfigured with an incorrect AS number.*In order to 
troubleshoot this issue, check these items:
*
Verify that the cable is connected correctly.
Double-check the interface configuration for misconfigured IP addresses on the 
local and neighboring routers.
Verify that the primary address of the interface is in the same subnet as the 
primary address of the neighbor router.
If the EIGRP neighbor connection is joined via a LAN hub, use separate hubs in 
order to break up the broadcast domain for each logical LAN segment, or 
configure no eigrp log-neighbor-warnings to eliminate the errors.

If there is a switch involved, check the switch configuration to make sure different 
LAN segments are not configured to be in the same VLAN that share the same 
broadcast domain.

در کانفیگ شما هر مشکلی هست از سمت روتر 8 باید باشه