An EIGRP Summary-Address not advertised to neighbors

From: Young K. Bae (ybae@cisco.com)
Date: Wed Sep 11 2002 - 15:50:55 GMT-3

Hello,

There are three loopbacks on R2 with addresses 172.16.1.1, 172.16.2.1, and
172.16.3.1, with a mask of /24. I have a summary-address configured on both
R2's interfaces, a serial connection to R1 and an Ethernet connection to R3
and R4, with a statement 'ip summary-address eigrp 1 172.16.0.0
255.255.252.0'. The R2 router sees all other routers as neighbors, but it's
not advertising the /22 summary route to its neighbors. What could be
wrong? Please let me know if you need more info.

R1 ----- R2
             |
             |
  R3 |------------| R4

Thanks in advance,

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