l`AS 400 redistribue ces routes dans l`AS 300 en les taguant :
R4(config)#route-map Redis-400-300 permit 10 R4(config-route-map)#set tag 400 R4(config)#router eigrp 300 R4(config-router)#redistribute eigrp 400 route-map Redis-400-300
Vérifications :
BB3#show ip route 10.1.156.0
Routing entry for 10.1.156.0/24
Known via "eigrp 300", distance 175, metric 21564160
Tag 400, type external
Redistributing via eigrp 300
Last update from 10.1.113.3 on Ethernet0, 00:00:01 ago
Routing Descriptor Blocks:
* 10.1.113.3, from 10.1.113.3, 00:00:01 ago, via Ethernet0
Route metric is 21564160, traffic share count is 1
Total delay is 61100 microseconds, minimum bandwidth is 128 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 4