Hi,
In Lab8 WB2 we have a topology like this:
R2
/ \
/ OSPF \
/ \
R5 ----------- R6
|
EIGRP
|
|
R7
|
| static to 10.0.0.8
|
R8
Full reachability is asked so we must redistribute between EIGRP and OSPF on
R5 and R6 and redistribute static in EIGRP on R7.
The DSG suggests using the distance command on R5 and R6 to increase the AD
in router ospf between them in order to avoid routes generated in EIGRP to
be preferred coming in from OSPF, but I think it should work just as well
with route tags, like below:
R7:
ip route 10.0.0.8 255.255.255.255 172.30.78.101
router eigrp 1
redist static metric 1 1 1 1 1500
R5, R6:
route-map O2E deny 10
match tag 90
route-map O2E permit 20
set tag 110
route-map E2O deny 10
match tag 110
route-map E2O permit 20
match route-type internal external
set tag 90
router ospf 1
redist eigrp 1 subnets route-map E2O
router eigrp 1
redist ospf 1 metric 1 1 1 1 1500 route-map O2E
The 10.0.0.8 route is the Lo1 of R8 and R7 has a static route to it. It is
redistributed into EIGRP and SHOULD be preferred as a D EX route on R5 and
R6... except it isn't. It is preferred through EIGRP just on one router.
R5#sho ip route 10.0.0.8
Routing entry for 10.0.0.8/32
Known via "eigrp 1", distance 170, metric 2560002816, type external
Redistributing via ospf 1, eigrp 1
Advertised by ospf 1 subnets route-map E2O
Last update from 172.30.200.7 on FastEthernet0/0, 00:13:06 ago
Routing Descriptor Blocks:
* 172.30.200.7, from 172.30.200.7, 00:13:06 ago, via FastEthernet0/0
Route metric is 2560002816, traffic share count is 1
Total delay is 110 microseconds, minimum bandwidth is 1 Kbit
Reliability 1/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
R6#sho ip route 10.0.0.8
Routing entry for 10.0.0.8/32
Known via "ospf 1", distance 110, metric 20
Tag 90, type extern 2, forward metric 128
Redistributing via eigrp 1
Last update from 172.30.100.2 on Serial0/1/0, 00:08:20 ago
Routing Descriptor Blocks:
* 172.30.100.2, from 5.5.5.5, 00:08:20 ago, via Serial0/1/0
Route metric is 20, traffic share count is 1
Route tag 90
I am sure I am missing something in this scenario so please fell free to
come with suggestions
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