EIGRP config

impulsion84 · ‎06-12-2023

Hi people,

Please don't hang me but i am lacking some skills and i would need your help.

Router 1 and Router 2 in the main site have this class mapped from a secondary site:

D 10.10.24.0/21 [90/54277120] via 10.1.255.10, 2d18h, Tunnel50

[90/54277120] via 10.1.255.3, 2d18h, Tunnel50

Routing entry for 10.10.24.0/21

Known via "eigrp 1", distance 90, metric 54277120, precedence routine (0), type internal

Redistributing via eigrp 1, ospf 1

Advertised by ospf 1 subnets route-map EIGRP_StaticRedistribution

Last update from 10.1.255.10 on Tunnel50, 2d18h ago

Routing Descriptor Blocks:

10.1.255.10, from 10.1.255.10, 2d18h ago, via Tunnel50

Route metric is 54277120, traffic share count is 1

Total delay is 6010 microseconds, minimum bandwidth is 100 Kbit

Reliability 255/255, minimum MTU 1400 bytes

Loading 15/255, Hops 2

* 10.1.255.3, from 10.1.255.3, 2d18h ago, via Tunnel50

Route metric is 54277120, traffic share count is 1

Total delay is 6010 microseconds, minimum bandwidth is 100 Kbit

Reliability 255/255, minimum MTU 1400 bytes

Loading 1/255, Hops 2

P 10.10.24.0/21, 2 successors, FD is 6947471360

via 10.1.255.3 (6947471360/328990720), Tunnel50

via 10.1.255.10 (6947471360/328990720), Tunnel50

via 10.1.253.3 (7078543360/328990720), Tunnel60

via 10.1.253.10 (7078543360/328990720), Tunnel60

via 10.1.252.10 (7144079360/328990720), Tunnel61

via 10.1.252.3 (7144079360/328990720), Tunnel61

via 10.1.254.10 (7013007360/328990720), Tunnel51

via 10.1.254.3 (7013007360/328990720), Tunnel51

I do not know how to add another class like: 10.10.40.0 to the routing table for eigrp 1 on Tunnel50.

Settings on the secondary site: D 10.10.24.0/21 [90/2570240] via 192.168.51.2, 3d02h, Port-channel1.502

So once done on the main routers, i will have to do it on the secondary routers also.

Short story, i've created a new VLAN 42 for 10.10.40.0 and i need it to talk to the main site. The ACL are configured on the main switches on the secondary site and that's fine, i can ping stuff around this site, but obviously not working form the main site since the ip's are not in the routing tables.

Thank you

Flavio Miranda · ‎06-12-2023

Hi

Router 1 and Router 2 in the main site have this class mapped from a secondary site:

D 10.10.24.0/21 [90/54277120] via 10.1.255.10, 2d18h, Tunnel50

[90/54277120] via 10.1.255.3, 2d18h, Tunnel50

You mean, router 1 and 2 in the main side is receiving this network 10.10.24.0/21 from the secondary site via Tunnel50 using EIGRP?

Now, you create a new vlan 42 on the secondary side with IP address 10.10.40.0and you need this network to also be advertised to Main side?

You must have EIGRP running on the Secondary's side Router, right?

You need to add this network on the EIGRP process

router eigrp x

netwrok 10.10.40.0 <wild card mask>

impulsion84 · ‎06-12-2023

Yes, both routers from the main site are receiving the network from the secondary site via Tunel50 using EIGRP

Both routers at the secondary site:

D 10.10.24.0/21 [90/2570240] via 192.168.51.2, 3d02h, Port-channel1.502

192.168.51.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.51.0/29 is directly connected, Port-channel1.502
L 192.168.51.1/32 is directly connected, Port-channel1.502

So yes, i would need to add 10.10.40.0 to EIGRP on the secondary routers first

MHM Cisco World · ‎06-12-2023

This dmvpn dual hub?

If yes then you can add delay in branch site and this make prefix learn from one one hub.

Flavio Miranda · ‎06-12-2023

Yes.

impulsion84 · ‎06-13-2023

Just tried this:

R01#show running-config | section ospf

ip ospf mtu-ignore

ip ospf network broadcast

ip ospf priority 0

ip ospf mtu-ignore

ip ospf cost 10

ip ospf network broadcast

ip ospf priority 0

ip ospf mtu-ignore

ip ospf cost 20

ip ospf network broadcast

ip ospf priority 0

ip ospf mtu-ignore

ip ospf cost 30

ip ospf network broadcast

ip ospf priority 0

ip ospf mtu-ignore

ip ospf cost 40

router ospf 1

router-id 192.168.254.245

area 10.10.24.0 nssa no-summary

area 10.10.24.0 range 10.10.24.0 255.255.248.0

redistribute static metric-type 1 route-map OSPF_StaticRedistribution

passive-interface default

network 10.1.252.0 0.0.3.255 area 0

network 192.168.51.0 0.0.0.7 area 10.10.24.0

network 192.168.254.245 0.0.0.0 area 0

default-information originate

R01#show route-map

route-map EIGRP_StaticRedistribution, permit, sequence 10

Match clauses:

ip address (access-lists): 11

Set clauses:

Policy routing matches: 0 packets, 0 bytes

route-map OSPF_StaticRedistribution, permit, sequence 10

Match clauses:

ip address (access-lists): 10

Set clauses:

Policy routing matches: 0 packets, 0 bytes

R01#show access-list 10
Standard IP access list 10
10 permit 10.0.0.0, wildcard bits 0.255.255.255
20 permit 172.16.0.0, wildcard bits 0.0.255.255
R01#show access-list 11
Standard IP access list 11
10 permit 0.0.0.0 (85 matches)
20 permit 10.10.0.0, wildcard bits 0.0.255.255

Tried also:

router ospf 1 > network 10.10.24.0 range 10.10.40.0 255.255.255.0

and got this error:

R01(config)#router ospf 1
R01(config-router)#$10.24.0 range 10.10.40.0 255.255.255.0
^
% Invalid input detected at '^' marker.

Flavio Miranda · ‎06-13-2023

Not sure about this range statement, never used.

router ospf

network 10.10.40.0 0.0.0.255

That's how we add a network to an OSPF process.

MHM Cisco World · ‎06-13-2023

router OSPF x
area x range x.x.x.x mask <<- this only apply to ABR router
summary-address <<- this apply to ASBR, I think here you have ASBR since you run eigrp/ospf in same router.

BUT the your issue is not clear to me
thanks
MHM

impulsion84 · ‎06-13-2023

The site where i have the new VLAN:

Layer 3 switch with all the ACL's configured:

S01>ping 10.10.40.13
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.10.40.13, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms

R01>ping 10.10.40.13
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.10.40.13, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)

R01 and R02 can't talk to the new VLAN. Long story short.

Flavio Miranda · ‎06-13-2023

You are not providing enough information. I dont even know if this network should be advertised on the OSPF or EIGRP, and not sure why you do have both protocols runnning at the same time.

For further help I would need the show run from the devices involved and if not ask too much, a simple network diagram.

MHM Cisco World · ‎06-13-2023

friend It short story but I hope it have happy ending
the R1 and R2 config with tunnel 50,
so it represent two layer OVERLAYER and UNDERLAYER
UNDERLAYER is the tunnel source and OVERLAYER is tunnel itself
we you ping from SW the SW use OVERLAYER only so it success
we you ping from R only you need to specify the source of your ping it must IP in OVERLAYER which I prefer be the tunnel IP.