Hello, first post in this community.
I have recently finished the netacad ccna v7 course and our teacher made us do a final lab with all the knowledge we had acquired which many colleagues did not start it (I have done it as a review of the entire course).
The lab I have done has everything but I have one problem that not been able to solve for 3 days (I´m on the finish !!!).
Let me tell you...
One of the etherchannels, the one that is giving me problems, is made up of 2 switches and a layer 3 switch. The layer 3 is the one that addresses the 3 vlans behind the other two switches. Besides I have enabled 3 interfaces, two that go to two routers towards the rest of the topology (These two routers are connected to each other through a serial connection) and another interface that goes to another router that goes to an ISP formed by a cluster that connect 7 servers, one of each type.
The problem its on one of the interface connected to one of the router that go to the rest of the topology, g1/0/24 with 192.168.210.2 /24. I put the complete error that shows:
%OSPF-5-ADJCHG: Process 10, Nbr 192.168.210.2 on Vlan10 from INIT to DOWN, Neighbor Down: Dead timer expired
%OSPF-5-ADJCHG: Process 10, Nbr 192.168.210.2 on Vlan10 from INIT to DOWN, Neighbor Down: Interface down or detached
%OSPF-5-ADJCHG: Process 10, Nbr 192.168.210.2 on Vlan20 from EXSTART to DOWN, Neighbor Down: Dead timer expired
%OSPF-5-ADJCHG: Process 10, Nbr 192.168.210.2 on Vlan20 from EXSTART to DOWN, Neighbor Down: Interface down or detached
%OSPF-5-ADJCHG: Process 10, Nbr 192.168.210.2 on Vlan30 from INIT to DOWN, Neighbor Down: Dead timer expired
%OSPF-5-ADJCHG: Process 10, Nbr 192.168.210.2 on Vlan30 from INIT to DOWN, Neighbor Down: Interface down or detached
The pings that I send from any pc to one of the servers arrive without problems, those that I send from any of the 6 pcs of those 3 vlans do not, packets are lost...
Something fails me and I don't know what it is. I have checked the config many times and can't find the one.
All routers are through ospf and I think there is the problem but as I say, I do not know what it is. IF I solve it, I will have finished the lab ...
Do you think what could be happening ? I put the run of layer 3 in case you see something at firs sight:
ip dhcp excluded-address 192.168.10.1 192.168.10.10
ip dhcp excluded-address 192.168.20.1 192.168.20.10
ip dhcp excluded-address 192.168.30.1 192.168.30.10
!
ip dhcp pool VLAN10
network 192.168.10.0 255.255.255.0
default-router 192.168.10.1
dns-server 192.168.10.10
ip dhcp pool VLAN20
network 192.168.20.0 255.255.255.0
default-router 192.168.20.1
dns-server 192.168.20.10
ip dhcp pool VLAN30
network 192.168.30.0 255.255.255.0
default-router 192.168.30.1
dns-server 192.168.30.10
!
no ip cef
ip routing
!
no ipv6 cef
!
spanning-tree mode rapid-pvst
!
interface Port-channel2
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
switchport nonegotiate
!
interface Port-channel3
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
switchport nonegotiate
!
interface GigabitEthernet1/0/1
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
switchport nonegotiate
channel-group 2 mode on
!
interface GigabitEthernet1/0/2
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
switchport nonegotiate
channel-group 2 mode on
!
interface GigabitEthernet1/0/3
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
switchport nonegotiate
channel-group 3 mode on
!
interface GigabitEthernet1/0/4
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
switchport nonegotiate
channel-group 3 mode on
!
interface GigabitEthernet1/0/22
description TO_ISP
no switchport
ip address 8.8.8.6 255.255.255.252
duplex auto
speed auto
!
interface GigabitEthernet1/0/23
description TO_R1
no switchport
ip address 192.168.200.2 255.255.255.0
duplex auto
speed auto
!
interface GigabitEthernet1/0/24
description TO_R2
no switchport
ip address 192.168.210.2 255.255.255.0
duplex auto
speed auto
!
interface Vlan1
no ip address
shutdown
!
interface Vlan10
ip address 192.168.10.1 255.255.255.0
!
interface Vlan20
ip address 192.168.20.1 255.255.255.0
!
interface Vlan30
ip address 192.168.30.1 255.255.255.0
!
interface Vlan99
ip address 192.168.99.1 255.255.255.0
!
router ospf 10
log-adjacency-changes
network 8.8.8.4 0.0.0.3 area 0
network 192.168.99.0 0.0.0.255 area 0
network 192.168.200.0 0.0.0.255 area 0
network 192.168.210.0 0.0.0.255 area 0
network 192.168.30.0 0.0.0.255 area 0
network 192.168.20.0 0.0.0.255 area 0
network 192.168.10.0 0.0.0.255 area 0
!
ip default-gateway 8.8.8.5
Thank you very much in advance !!
Regards
