Router Eigrp / Network 150.0.0.0 vs 150.200.0.0

From: Tony H. (aamercado31@yahoo.com)
Date: Sat Apr 26 2003 - 18:01:39 GMT-3


HI

Eigrp across a Frame Relay cloud r2-r1. R2 has both
ospf/eigrp and r1 is only eigrp

r1:
interface Serial0
 ip address 150.200.16.1 255.255.240.0
 encapsulation frame-relay
 ip split-horizon
 frame-relay map ip 150.200.16.2 102 broadcast

router eigrp 1
 network 150.200.0.0 (I did not use 150.0.0.0 because
there were other interface under the 150.x.x.x
subnets)

R2
interface Serial0.2 point-to-point
 ip address 150.200.16.2 255.255.240.0
 no ip directed-broadcast
 frame-relay interface-dlci 201

If I used on R1
router eigrp 1
 network 150.0.0.0
on a "deb ip packet" I would get
02:46h:45: IP: s=150.200.16.2 (Serial0), d=224.0.0.10,
len 60, unroutable

If I used on R1
router eigrp 1
 network 150.200.0.0
Again, on "deb ip packet" I would get
02:58:06: IP: s=150.200.16.2 (Serial0), d=224.0.0.10,
len 60, rcvd 2

With r2, I need to be specific in setting my "network"
statement for both eigrp/ospf but I thought I did not
need to do so for r1 as it only runs eigrp and assume
I could use 150.0.0.0 but this cause packets to be
"unroutable"...Just curious why? TIA

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