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Configuring Route Redistribution
373
F I G U R E 1 0 . 5
EIGRP and IGRP redistribution
However, with the syntax shown, route redistribution still doesn't work.
The reason is that Network A is using a process ID of 10 for EIGRP, and
Network B is using an AS of 20 for IGRP. If we change the IGRP AS of Net-
work B from 20 to 10, route redistribution functions correctly. The final syn-
tax of RouterB would be as follows:
router eigrp 10
network 1.0.0.0
!
router igrp 10
network 8.0.0.0
Notice that no
redistribute
or
default-metric
commands are nec-
essary. Since the AS for both EIGRP and IGRP is now set to 10, redistribu-
tion occurs automatically.
Before considering more advanced concepts of route redistribution, we
will examine one final scenario of route summarization. This time, we will
be redistributing EIGRP and OSPF.
Network B
IGRP - Process ID 20
Network A
EIGRP - Process ID 10
I cannot see
routes
from RouterC.
I can see routes
from both RouterA
and RouterC.
I cannot see
routes
from RouterA.
router eigrp 10
network 1.0.0.0
router igrp 20
network 8.0.0.0
RouterC
RouterB
RouterA
8.8.8.0/24
1.1.1.0/24
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