Basic Question EIGRP

[ThomasBond_2]

Hi,

I have this configuration in a 3750:

interface gi 0/1

ip add 192.168.10.0 255.255.255.0

exit

interface gi 0/2

ip add 192.168.20.0 255.255.255.0

exit

interface gi 0/3

ip add 192.168.30.0 255.255.255.0

SHUTDOWN

exit

router eigrp 100

network 192.168.10.0 0.0.0.255

network 192.168.20.0 0.0.0.255

network 192.168.30.0 0.0.0.255

The network 192.168.30.0 (administratively down) will be known to other routers running EIGRP 100?

[Mohamed Sobair]

NO, it will not be know for other Eigrp 100 neighbors.

HTH

Mohamed

[marcusbrutus]

Eigrp advertises networks by checking its own routing table.  If the interface is down then it won't be on its routing table hence it will not be advertised.

The eigrp network command simply tells eigrp which networks/interface will participate in the eigrp process.