I am getting redistribution EIGRP->ISIS just fine. However, I noticed the following. Can someone clarify:
RouterB(EIGRP 100)
s0:152.1.1.1/24
LO:1.1.1.1/24
connected V.35 to
S0/0:152.1.1.2/24
RouterA
e0/0:3.3.3.4/24
LO:4.4.4.4/24
(running ISIS and EIGRP 100)
connected to
ROuterC
e0/0:3.3.3.3/24
Lo0:2.2.2.2/24
(running ISIS)
Please find attached RouterA,B,C and respective show ip routes.
Then on RouterA, I redistribute EIGRP->ISIS. I do:
!
router isis
net 47.0002.0010.0100.1001.00
area-password pass
redistribute eigrp 100 metric 10 level-1-2
!
Then on routerC, I am able to see all related EIGRP advertised networks distributed
into ISIS - OK as shown in the 'ip route#1' pasted below, which is showing the route 152.1.0.0/16.
I notice that if I try to add the following onto the router isis configuration above:
'redistribute connected' then the router 152.1.0.0/16 is no longer redistributed into ISIS on RouterC. Can someone explain why ? Isn't the 'redistribute connected' a configuration to allow me see all related routes from the respective AS even if they were not advertised through the 'network' command ? Interesting, because the '152.1.0.0' network is advertised on the router EIGRP 100 in my RouterB.
'ip route#1
RouterC#show 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 3.3.3.4 to network 0.0.0.0
1.0.0.0/24 is subnetted, 1 subnets
i L1 1.1.1.0 [115/20] via 3.3.3.4, Ethernet0/0
i L1 152.1.0.0/16 [115/20] via 3.3.3.4, Ethernet0/0
2.0.0.0/24 is subnetted, 1 subnets
C 2.2.2.0 is directly connected, Loopback0
3.0.0.0/24 is subnetted, 1 subnets
C 3.3.3.0 is directly connected, Ethernet0/0
i*L1 0.0.0.0/0 [115/10] via 3.3.3.4, Ethernet0/0
Then with the 'redistribute connected' this the show ip route on RouterC. Note that the '152.1.0.0/16' network is no longer included.
show 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 3.3.3.4 to network 0.0.0.0
1.0.0.0/24 is subnetted, 1 subnets
i L1 1.1.1.0 [115/20] via 3.3.3.4, Ethernet0/0
2.0.0.0/24 is subnetted, 1 subnets
C 2.2.2.0 is directly connected, Loopback0
3.0.0.0/24 is subnetted, 1 subnets
C 3.3.3.0 is directly connected, Ethernet0/0
i*L1 0.0.0.0/0 [115/10] via 3.3.3.4, Ethernet0/0
