ipv4 layer 3 topo...

damn the torpedoes full steam ahead... this topology was made public to the cln by cisco, so i am going to discuss it... i had some problems setting it up because of the route redistribution necessary between eigrp and ospf...

here it is...  i do not have an r4 yet, so consider it with the distribution switches connected directly to r3...

the redistribution occurs on r3 (again there is no r4 in my network currently, so dsw1 and dsw 2 connect directly to r3 instead... the ip addressing remains the same excluding r4 on the whole... only areas 12 and 0 are represented in my network... use your imagination...


r3#sh run | begin eigrp
router eigrp 10
 redistribute ospf 1 metric 1500 1 255 255 1500
 network 10.1.4.4 0.0.0.3
 network 10.1.4.8 0.0.0.3
 no auto-summary


r3#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

     1.0.0.0/32 is subnetted, 1 subnets
O IA    1.1.1.1 [110/129] via 10.1.1.5, 00:01:09, Serial0/0
     2.0.0.0/32 is subnetted, 1 subnets
O IA    2.2.2.2 [110/65] via 10.1.1.5, 00:01:09, Serial0/0
     100.0.0.0/24 is subnetted, 1 subnets
D       100.0.0.0 [90/156160] via 10.1.4.10, 01:25:12, FastEthernet1/0
     3.0.0.0/24 is subnetted, 1 subnets
C       3.3.3.0 is directly connected, Loopback0
     10.0.0.0/8 is variably subnetted, 6 subnets, 2 masks
D       10.1.4.12/30 [90/30720] via 10.1.4.10, 01:25:13, FastEthernet1/0
                     [90/30720] via 10.1.4.6, 01:25:13, FastEthernet0/0
C       10.1.4.8/30 is directly connected, FastEthernet1/0
O IA    10.1.1.0/30 [110/128] via 10.1.1.5, 00:01:10, Serial0/0
C       10.1.4.4/30 is directly connected, FastEthernet0/0
C       10.1.1.4/30 is directly connected, Serial0/0
C       10.1.1.5/32 is directly connected, Serial0/0
r3#

i can now ping through from r1 at the top to the dsw's and vice versa...  i still have more work to do, and after i add an actual r4, my network here will be very close to what you see in the topology... the metrics used in the redistribution statement are a first attempt only and may be adjusted... yet another great reason to join the cisco learning network... what are you waiting for?