04-13-2010 10:44 AM - edited 03-06-2019 10:36 AM
Hi all,
i have two routers on same network
Router 2650 config
router eigrp 50
network 192.168.1.0
auto-summary
2650xm# sh ip eigrp nei
IP-EIGRP neighbors for process 50
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 192.168.1.40 Fa1/0 11 00:11:05 348 2088 0 3
2650xm# sh ip eigrp topo
2650xm# sh ip eigrp topology
IP-EIGRP Topology Table for AS(50)/ID(10.10.10.10)
Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - reply Status, s - sia Status
P 192.168.1.0/24, 1 successors, FD is 28160
via Connected, FastEthernet1/0
*******************************************************************************
Router 2620
router eigrp 50
network 192.168.1.0
auto-summary
2620Router# sh ip eigrp nei
IP-EIGRP neighbors for process 50
H Address Interface Hold Uptime SRTT RTO Q Seq
0 192.168.1.1 Fa0/0 14 00:12:05 1 3000 0 9
2620Router#sh ip eigrp topology
IP-EIGRP Topology Table for AS(50)/ID(2.2.2.2)
Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - reply Status, s - sia Status
P 192.168.1.0/24, 1 successors, FD is 28160
via Connected, FastEthernet0/0
2620Router#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
C 2.0.0.0/8 is directly connected, Loopback0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
2620Router#
As shown above on 2620 routers routing table it is not showing D eigrp only showing static ?
any idea why it is like this?
i know in ospf and rip we can use default info originate from main router which option can we use on 2650 core router so router 2620 learn routes by
eigrp?
many thanks
mahesh
Solved! Go to Solution.
04-13-2010 10:51 AM
Mahesh
As shown above on 2620 routers routing table it is not showing D eigrp only showing static ?
any idea why it is like this?
You will only see D routes with EIGRP if the 2650 is advertising those routes and this does not include the directly connected networks.
Do this on 2650
int loopback 10
ip address 192.168.5.1 255.255.255.0
router eigrp 1
network 192.168.5.0
you should then see this as an EIGRP route on the 2620.
Jon
04-13-2010 11:16 AM
Hello Mahesh,
as Jon has noted you need to advertise some other IP subnet in order to see EIGRP updates exchanged and EIGRP routes installed in the routing table.
The use of loopback interfaces is very handy for this kind of things allowing to emulate several remote networks
Probably the two are not even sending out an EIGRP update in current scenario, but they just exchange EIGRP hello messages and they have become neighbors.
Edit:
>> P which is passive do you why it do not show them as Active??
passive in good news, Active would be bad news it would mean the router is trying to find an alternate path and has started a Query process.
passive state is the correct one
Hope to help
Giuseppe
04-13-2010 10:51 AM
Mahesh
As shown above on 2620 routers routing table it is not showing D eigrp only showing static ?
any idea why it is like this?
You will only see D routes with EIGRP if the 2650 is advertising those routes and this does not include the directly connected networks.
Do this on 2650
int loopback 10
ip address 192.168.5.1 255.255.255.0
router eigrp 1
network 192.168.5.0
you should then see this as an EIGRP route on the 2620.
Jon
04-13-2010 11:14 AM
Hi Jon,
thanks for reply i did that and now i see D in routing table of 2620
2620Router#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
C 2.0.0.0/8 is directly connected, Loopback0
D 192.168.5.0/24 [90/156160] via 192.168.1.1, 00:02:29, FastEthernet0/0**********************
C 192.168.1.0/24 is directly connected, FastEthernet0/0
2620Router#
but when i ran command below it shows 2 networks and both as
P which is passive do you why it do not show them as Active??
2620Router#sh ip eigrp topology
IP-EIGRP Topology Table for AS(50)/ID(2.2.2.2)
Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - reply Status, s - sia Status
P 192.168.1.0/24, 1 successors, FD is 28160
via Connected, FastEthernet0/0
P 192.168.5.0/24, 1 successors, FD is 156160
via 192.168.1.1 (156160/128256), FastEthernet0/0
2620Router#
thanks
mahesh
04-13-2010 11:16 AM
Hello Mahesh,
as Jon has noted you need to advertise some other IP subnet in order to see EIGRP updates exchanged and EIGRP routes installed in the routing table.
The use of loopback interfaces is very handy for this kind of things allowing to emulate several remote networks
Probably the two are not even sending out an EIGRP update in current scenario, but they just exchange EIGRP hello messages and they have become neighbors.
Edit:
>> P which is passive do you why it do not show them as Active??
passive in good news, Active would be bad news it would mean the router is trying to find an alternate path and has started a Query process.
passive state is the correct one
Hope to help
Giuseppe
04-13-2010 11:34 AM
Hi guislar
thanks for explanation
regards
mahesh
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