multi-proto topo...

i like this topology...  i guess it's going to be difficult to walk off route, at least for a couple of days... i have a few things burning right now... naturally the first and foremost is getting through tshoot to see my way to the other side; that other side being ccie r&s... i am constantly fighting the urge to jump into it as i complete ccnp, having already purchased the odom ccie cert guide and the ccie r&s quick review, both of which i've started reading...  i also have a new (to me) 3560 with 3 more on the way for the inevitable ccie lab build...  the plan there is to use one of my  3550's for qinq access to the 4 3560's seamlessly and avoid the cost of a gns3 server... those quad nic's are very expensive and there's no point in trashing the 3550's... the 2950 l2's will be fine for the access layer, there is no point in getting 2960's; no benefit... i still have the 4 2600xm routers, one with a fxs/fxo card for the 7940 phones... and of course gns3 is virtually limitless on this unix box...

i'll probably start working on qinq this weekend or next...

this topology i cribbed from russ white's excellent book on eigrp... i made r1,r2 and r3 ospf area 0 routers... r4 is area 4 ospf while r5 is rip v2 and r6 is eigrp...

i haven't performed any redist yet...

r1#sh ip route ospf

Gateway of last resort is not set

      2.0.0.0/32 is subnetted, 1 subnets
O        2.2.2.2 [110/2] via 10.1.1.2, 00:50:42, FastEthernet0/0
      3.0.0.0/32 is subnetted, 1 subnets
O        3.3.3.3 [110/2] via 10.1.2.3, 00:46:13, FastEthernet0/1
      4.0.0.0/32 is subnetted, 1 subnets
O IA     4.4.4.4 [110/3] via 10.1.2.3, 00:45:57, FastEthernet0/1
                 [110/3] via 10.1.1.2, 00:49:46, FastEthernet0/0
      10.0.0.0/8 is variably subnetted, 6 subnets, 2 masks
O IA     10.1.4.0/24 [110/2] via 10.1.1.2, 00:51:24, FastEthernet0/0
O IA     10.1.14.0/24 [110/2] via 10.1.2.3, 00:45:57, FastEthernet0/1

note r1's ia's to r4... and of course r2 and r3 have no ia's...

r3#sh ip route | ex L | inc loop
  
Gateway of last resort is not set

      1.0.0.0/32 is subnetted, 1 subnets
O        1.1.1.1 [110/2] via 10.1.2.1, 00:49:18, FastEthernet0/1
      2.0.0.0/32 is subnetted, 1 subnets
O        2.2.2.2 [110/3] via 10.1.2.1, 00:49:18, FastEthernet0/1
      3.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        3.3.3.0/24 is directly connected, Loopback0
      4.0.0.0/32 is subnetted, 1 subnets
O        4.4.4.4 [110/2] via 10.1.14.4, 00:49:07, FastEthernet2/0
      6.0.0.0/24 is subnetted, 1 subnets
D        6.6.6.0 [90/156160] via 10.1.16.6, 00:28:19, FastEthernet1/0
      10.0.0.0/8 is variably subnetted, 12 subnets, 2 masks
O        10.1.1.0/24 [110/2] via 10.1.2.1, 00:49:18, FastEthernet0/1
C        10.1.2.0/24 is directly connected, FastEthernet0/1
O        10.1.4.0/24 [110/2] via 10.1.14.4, 00:49:07, FastEthernet2/0
R        10.1.5.0/24 [120/1] via 10.1.15.5, 00:00:05, FastEthernet1/1
D        10.1.6.0/24 [90/30720] via 10.1.16.6, 00:28:19, FastEthernet1/0
C        10.1.14.0/24 is directly connected, FastEthernet2/0
C        10.1.15.0/24 is directly connected, FastEthernet1/1
C        10.1.16.0/24 is directly connected, FastEthernet1/0

r3, like r2 is supporting all three routing proto's...

so far there doesn't appear to be any route overlap... the trick will be with the redist and perhaps changing area types, adding some filters, etc, to prevent loops...

something to beat on...