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NewBie - EIGRP

winanjaya
Level 1
Level 1

Dear Expert,

previously, I had 5 networks (172.16.0.0/16)

172.16.1.0/24 -> Head Office

172.16.2.0/24

172.16.3.0/24

172.16.6.0/24

172.16.8.0/24

now I have one new network on 192.168.210.0/24 connected with frame relay

when running "sh ip route" .. I did not find my 192.168.210.0 EIGRP route info .. why

please help, thanks a lot in advance

Regards

Winanjaya

below is my eigrp config:

router eigrp 100

network 172.16.0.0

network 192.168.210.0

network 198.168.0.0 0.0.15.255

no auto-summary

eigrp log-neighbor-changes

Ro_kwc#sh ip route

Codes: C - connected, S - static, I - IGRP, 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, E - EGP

i - IS-IS, 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 172.16.1.5 to network 0.0.0.0

172.16.0.0/16 is variably subnetted, 8 subnets, 2 masks

C 172.16.254.12/30 is directly connected, Serial0/0.3

C 172.16.254.20/30 is directly connected, Serial0/0.8

C 172.16.254.24/30 is directly connected, Serial0/0.4

C 172.16.254.28/30 is directly connected, Serial0/0.2

D 172.16.8.0/24 [90/1764352] via 172.16.254.22, 07:46:47, Serial0/0.8

C 172.16.1.0/24 is directly connected, FastEthernet0/0

D 172.16.2.0/24 [90/1764352] via 172.16.254.30, 09:27:16, Serial0/0.2

D 172.16.3.0/24 [90/1764352] via 172.16.254.14, 15:08:30, Serial0/0.3

S* 0.0.0.0/0 [1/0] via 172.16.1.5

C 198.168.0.0/20 is directly connected, FastEthernet0/0

Ro_kwc#

1 Accepted Solution

Accepted Solutions

Hi Winanjaya,

The problem that you have is that you have the same subnet both at the HO and the RO. Check your config

Route 3640 at HO

interface FastEthernet0/0

ip address 192.168.210.164 255.255.255.0 secondary

ip address 172.16.1.2 255.255.255.0

Router 1700 at New Branch

interface FastEthernet0/0

ip address 192.168.210.161 255.255.255.0

speed auto

If you want 192.168.210.0/24 at Remote office then please take out the secondry ip address with subnet 192.168.210.0/24 from the Head Office 3640 router and also from the EIGRP process. I have explained in my last post the problem that you are getting into because of this configuration on HO router.

On your 1700 router at RO please include 192.168.210.0 under the router's EIGRP process.

If you have any other requirement, please explain.

HTH, Please rate if it does.

-amit singh

View solution in original post

11 Replies 11

globalnettech
Level 5
Level 5

Hello,

is the interface configured with IP address 192.168.210.X/24 active on your router ?

Regards,

GNT

Hi

The subnet seems to be directly connected to the router in question and hence is reported as connected in " sh ip route " output

HTH,

Narayan

Narayan

The connected interface is 192.160.0.0/20 (which is a mask of 255.255.240.0) which covers the addresses of 192.168.0.0 through 192.168.15.255. The network that Winanjaya is looking for is 192.168.210.0 which is not connected according to the routing table.

The original post refers to the 192.168.210.0/24 as connected via Frame Relay, so I believe the real question is what router that is connected to and whether that router is running EIGRP and whether that router has a network statement for 192.168.210.0.

Note that there is no benefit in having a network statement for 192.168.210.0 on his router if that network is not connected to his router.

HTH

Rick

HTH

Rick

Hi All.. I am very new with this, what I don't understand is why 192.168.210.0 is not in EIGRP routing table..

could any body please help how to do this? meant how to make 192.168.210.0 in EIGRP routing table? ..

many thanks in advance

Regards

Winanjaya

Winanjaya

The points that I made were intended to help you solve your issue. You need to tell us what router is connected to the 192.168.210.0 network and you need to tell us whether that router is running EIGRP and advertising to your router. And you need to tell us whether that router has a network statement under router EIGRP for 192.168.210.0.

If you answer those questions you will probably have solved your own issue. And if you do not solve the issue with that information when you tell us the answers then we will be able to help you find the solution.

HTH

Rick

HTH

Rick

Thanks a lot in advance, below are my last config on Router 3640 at Head Office and on Router 1700 at our New branch

Router 3640 at HO

Ro_kwc#sh run

!

hostname Ro_kwc

ip subnet-zero

ip name-server 172.16.1.3

ip address-pool local

interface FastEthernet0/0

ip address 192.168.210.164 255.255.255.0 secondary

ip address 172.16.1.2 255.255.255.0

speed 100

full-duplex

interface Serial0/0

no ip address

encapsulation frame-relay

no fair-queue

frame-relay lmi-type ansi

...

interface Serial0/0.4 point-to-point

description Ro_Admedika

ip address 172.16.254.25 255.255.255.252

frame-relay interface-dlci 135

...

...

router eigrp 100

network 172.16.0.0

network 192.168.210.0

no auto-summary

eigrp log-neighbor-changes

!

ip local pool default 172.16.1.241 172.16.1.254

ip classless

ip route 0.0.0.0 0.0.0.0 172.16.1.5

ip http server

ip pim bidir-enable

end

Gateway of last resort is 172.16.1.5 to network 0.0.0.0

C 192.168.210.0/24 is directly connected, FastEthernet0/0

172.16.0.0/16 is variably subnetted, 10 subnets, 2 masks

C 172.16.254.8/30 is directly connected, Serial0/0.6

C 172.16.254.12/30 is directly connected, Serial0/0.3

C 172.16.254.20/30 is directly connected, Serial0/0.8

C 172.16.254.24/30 is directly connected, Serial0/0.4

C 172.16.254.28/30 is directly connected, Serial0/0.2

D 172.16.8.0/24 [90/1764352] via 172.16.254.22, 07:06:26, Serial0/0.8

D 172.16.6.0/24 [90/1764352] via 172.16.254.10, 07:06:26, Serial0/0.6

C 172.16.1.0/24 is directly connected, FastEthernet0/0

D 172.16.2.0/24 [90/1764352] via 172.16.254.30, 07:06:26, Serial0/0.2

D 172.16.3.0/24 [90/1764352] via 172.16.254.14, 00:39:00, Serial0/0.3

S* 0.0.0.0/0 [1/0] via 172.16.1.5

C 192.168.208.0/20 is directly connected, FastEthernet0/0

Ro_kwc#

Router 1700 at New Branch

Ro_Admedika#sh run

hostname Ro_Admedika

no ip domain-lookup

ip name-server 192.168.210.6

!

interface FastEthernet0/0

ip address 192.168.210.161 255.255.255.0

speed auto

!

interface Serial0/0

no ip address

encapsulation frame-relay

no fair-queue

frame-relay lmi-type ansi

frame-relay ip rtp header-compression

!

interface Serial0/0.1 point-to-point

ip address 172.16.254.26 255.255.255.252

frame-relay interface-dlci 135

!

router eigrp 100

network 172.16.0.0

no auto-summary

eigrp log-neighbor-changes

!

ip classless

ip route 0.0.0.0 0.0.0.0 172.16.254.25

ip http server

ip pim bidir-enable

!

no scheduler allocate

end

Ro_Admedika#

Ro_Admedika#sh ip route

......

Gateway of last resort is 172.16.254.25 to network 0.0.0.0

C 192.168.210.0/24 is directly connected, FastEthernet0/0

172.16.0.0/16 is variably subnetted, 10 subnets, 2 masks

D 172.16.254.8/30 [90/2681856] via 172.16.254.25, 06:53:44, Serial0/0.1

D 172.16.254.12/30 [90/2681856] via 172.16.254.25, 06:53:44, Serial0/0.1

D 172.16.254.20/30 [90/2681856] via 172.16.254.25, 06:53:44, Serial0/0.1

C 172.16.254.24/30 is directly connected, Serial0/0.1

D 172.16.254.28/30 [90/2681856] via 172.16.254.25, 06:53:44, Serial0/0.1

D 172.16.8.0/24 [90/2684416] via 172.16.254.25, 06:53:44, Serial0/0.1

D 172.16.6.0/24 [90/2684416] via 172.16.254.25, 06:53:44, Serial0/0.1

D 172.16.1.0/24 [90/2172416] via 172.16.254.25, 06:53:44, Serial0/0.1

D 172.16.2.0/24 [90/2684416] via 172.16.254.25, 06:53:44, Serial0/0.1

D 172.16.3.0/24 [90/2684416] via 172.16.254.25, 00:26:54, Serial0/0.1

S* 0.0.0.0/0 [1/0] via 172.16.254.25

D 192.168.208.0/20 [90/2172416] via 172.16.254.25, 00:05:49, Serial0/0.1

On your branch router (Ro_Admedika) under the router eigrp 100 configuration add the

following

network 192.168.210.0

This will then cause the branch router to advertise that network to your head office router.

Why do you have a secondary address of 192.168.210.164 on your fa0/0 interface on your head office router ??

Hi,

The reason you are not getting the route here on Ro_Admedika, because you have the same subnet configured here on the router's Fa0/0 interface. Since this network is directly connected so it will have an admin distance of zero and will be installed in the router's routing table rather than the EIGRP route.

There is a wrong configuration done in this scenario. You have 192.168.210.0 both at the HO and the RO. If your host sitting at RO tried to send traffic to some user at HO with destination subnet 192.168.210.x, the traffic will never pass the local router at RO as the same subnet is locally connected to the router.

You have to change the local LAN subnet ip address at Ro_Admedika RO router and then you will see the subnet 192.168.210 and everythign will work properly for you.

HTH, Please rate if it does.

-amit singh

amit

I think the 192.168.210.0 is at the RO. The original post said the new 192.168.210.0 network was connected via Frame relay so i assumed this was the RO. Hence he would need to remove the secondary 192.168.210.0 address off his HO router and add a 192.168.210.0 statement to his R0 eigrp config.

Winanjaya

could you confirm where the 192.168.210.0 network is meant to be - the head office or the remote office ?

Yes, 192.168.210.0/24 is on remote office, at HO the network is 172.16.1.0/24, any idea?

TIA & Rgds

Winanjaya

Hi Winanjaya,

The problem that you have is that you have the same subnet both at the HO and the RO. Check your config

Route 3640 at HO

interface FastEthernet0/0

ip address 192.168.210.164 255.255.255.0 secondary

ip address 172.16.1.2 255.255.255.0

Router 1700 at New Branch

interface FastEthernet0/0

ip address 192.168.210.161 255.255.255.0

speed auto

If you want 192.168.210.0/24 at Remote office then please take out the secondry ip address with subnet 192.168.210.0/24 from the Head Office 3640 router and also from the EIGRP process. I have explained in my last post the problem that you are getting into because of this configuration on HO router.

On your 1700 router at RO please include 192.168.210.0 under the router's EIGRP process.

If you have any other requirement, please explain.

HTH, Please rate if it does.

-amit singh

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