routing between router and core 4507r switch

Unanswered Question
Oct 24th, 2013
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   I am connecting  our campus core switch 4707r to a router through a layer 3 interface and using eigrp.  I could not bring up the interfaces between the router and switch. Is there something I missed? i am using a crossover cable to connect them. any help will be appreciated. i saw the  link is  green on the router end.

Here is the router config:

interface GigabitEthernet0/1

description to WACAT4K-A

ip address

duplex full

speed 100



router eigrp 2


passive-interface default

no passive-interface GigabitEthernet0/1

here is the 4507r:

interface GigabitEthernet1/2

description WA3500-A1

no switchport

ip address

qos trust dscp

router eigrp 2

no auto-summary


Can I use any switch port as a layer 3 interface and connect it to a router?



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rfalconer.sffcu Thu, 10/24/2013 - 16:29
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What kind of router is it?

You shouldn't need a cross-over cable between a switch and router. Did you try a straight-through?

You can set the interface to L3 on the switch. Whether or not it supports a routing protocol will be determined by the type of supervisor and version of software license you have.


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