Router configuration assistance - moving from BGP to EIGRP

[__Beth__]

Hello,

We just put in fiber at one of our rural locations.  I am hoping to do this configuration remotely with a reload in x as a backup.

The site is currently on an MPLS using BGP.  I need to move it over to our fiber cloud, which uses EIGRP.  I configure the interface and it shows up/up.

Here is part of my configuration

interface GigabitEthernet0/2
 ip address zz.xxx.1.19 255.255.255.240
 duplex auto
 speed auto

router eigrp 1234
 network zz.0.0.0

When I put in my route

ip route 0.0.0.0 0.0.0.0 (ip address)

I get booted and have to wait for the device to reloads to try again.

I am thinking BGP is my problem as I don't see EIGRP here:

Gateway of last resort is yyy.xxx.184.213 to network 0.0.0.0

B*    0.0.0.0/0 [20/0] via yyy.xxx.184.213, 00:03:32
      zz.0.0.0/8 is variably subnetted, 12 subnets, 4 masks
C        zz.yyy.0.24/29 is directly connected, GigabitEthernet0/0.320
L        zz.yyy.0.25/32 is directly connected, GigabitEthernet0/0.320
C        zz.yyy.1.16/28 is directly connected, GigabitEthernet0/2
L        zz.yyy.1.19/32 is directly connected, GigabitEthernet0/2
C        zz.xxx.18.0/24 is directly connected, GigabitEthernet0/0.18
L        zz.xxx.18.1/32 is directly connected, GigabitEthernet0/0.18
B        zz.xxx.57.0/24 [20/0] via zzz.xxx.184.213, 00:03:32
B        zz.xxx.58.0/24 [20/0] via zzz.xxx.184.213, 00:03:32
C        zz.xxx.zz3.0/24 is directly connected, GigabitEthernet0/0.zz3
L        zz.xxx.zz3.1/32 is directly connected, GigabitEthernet0/0.zz3
B        zz.xxx.zz5.0/24 [20/0] via yyy.xxx.184.213, 00:03:32
B        zz.xxx.zz6.0/24 [20/0] via yyy.xxx.184.213, 00:03:32
      yyy.0.0.0/8 is variably subnetted, 5 subnets, 2 masks
B        yyy.85.249.68/30 [20/0] via yy.92.184.213, 00:03:32
C        yyy.92.184.212/30 is directly connected, Multilink1
L        yyy.92.184.214/32 is directly connected, Multilink1
B        yyy.115.48.40/30 [20/0] via yyy.92.184.213, 00:03:32
B        yyy.115.151.232/30 [20/0] via yyy.92.184.213, 00:03:32
      yyy.89.0.0/16 is variably subnetted, 6 subnets, 3 masks
B        yyy.89.152.56/29 [20/0] via yyy.92.184.213, 00:03:32
B        yyy.89.152.128/28 [20/0] via yyy.92.184.213, 00:03:32
B        yyy.89.154.152/29 [20/0] via yyy.92.184.213, 00:03:32
B        yyy.89.157.160/28 [20/0] via yyy.92.184.213, 00:03:32
B        yyy.89.183.96/27 [20/0] via yyy.92.184.213, 00:03:32
B        yyy.89.183.224/27 [20/0] via yyy.92.184.213, 00:03:32

I am concerned if I do a

No router bgp xxxxx, I will get booted again.

I would appreciate any advice.

Thank you!

[Deepak Kumar]

Hi, 

Can you check EIGRP neighbor relationship? 

Show ip eigrp neighbor

show ip route eigrp

I never faced an issue that device is going reboot while you are trying to configure default route or removing bgp. 

Maybe the device is not going to reboot and its temp routing loop or updating the routing table. BGP is also slow compared to the EIGRP.

Regards,

Deepak Kumar

[__Beth__]

Hello Deepak,

Thank you for the reply.  The reboot was due to me telling it to reload in x minutes.  I did that so that if I lost connection, it would reload from the startup config and I wouldn't have to make the long drive out there.

I currently have have that interface set as passive, but this is what I get with the commands you requested:

EIGRP-IPv4 Neighbors for AS(1234)

Codes: L - local, 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, H - NHRP, l - LISP
       a - application route
       + - replicated route, % - next hop override, p - overrides from PfR

Gateway of last resort is xxx.yyy.184.213 to network 0.0.0.0

[Deepak Kumar]

Hi, 

First of all, as you mentioned that your interface is in passive so eigrp neighborship not possible.

Are you using EBGP?

If yes then it is having lower AD value then EIGRP so may you can't see the EIGEP routes in the routing table.

It is advised to remove this interface from passive and perform neighborship and check the reachability to this port only. 

after that perform all other redistribution or adding to eigrp. 

I don't think without redistribution or adding in eigrp to all local lan, you will face disconnection. 

Regards,

Deepak Kumar

[__Beth__]

Thank you.  I do appreciate your time.

I only put it as a passive interface as not to cause issues during business hours.  I can remove it after hours and try those commands again.

Here is my BGP config

router bgp 12345
 bgp log-neighbor-changes
 network yyy.xxx.184.212 mask 255.255.255.252
 redistribute connected
 neighbor yyy.xxx.184.213 remote-as 7018
 neighbor yyy.xxx.184.213 soft-reconfiguration inbound

Do you think the following will work?

router eigrp xxxx

network (ip address)

no passive-interface GigabitEthernet0/2

no router bgp 12345

ip route 0.0.0.0 0.0.0.0 (ip address)

My concern is I will lose connection with the no router bgp and no be able to get the ip route command in.  When I put the ip route command in first, I get disconnected.

Thanks again.

[Deepak Kumar]

Hi, 

I think first make eigrp ready and there will no issue in becoming neighbor. After that, you can go to the static route. 

If you wan to configure a default route before check the eigrp the make it with higher ad value 

IP route 0.0.0.0 0.0.0.0 <IP> 250

Regards,

Deepak Kumar

[__Beth__]

Thank you. We are now thinking it might be a problem with that circuit (it's new) and have the vendor looking into that.