02-27-2019 08:33 PM - edited 02-27-2019 08:38 PM
hello everyone !!!
i've have successfully configured LACP etherchannel on both layer 3 switches, i have assigned them both ip address of every vlan, i've enabled IP ROUTING and NO SWITCH PORT on the interfaces connected to the router. I have also configured OSPF but i still cannot PING from the Admin laptop (VLAN Gestion) to other VLANs but the opposite works...does anyone know what might be the problem ?
please i need HELP !!!
hostname layer3-1
ip routing
no ip domain-lookup
spanning-tree mode pvst
interface Port-channel2
switchport access vlan 99
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
interface Port-channel3
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
interface FastEthernet0/1
no switchport
ip address 172.16.48.1 255.255.255.248
duplex auto
speed auto
interface FastEthernet0/19
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
channel-protocol lacp
channel-group 2 mode active
interface FastEthernet0/20
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
channel-protocol lacp
channel-group 2 mode active
interface FastEthernet0/21
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
channel-protocol lacp
channel-group 2 mode active
interface FastEthernet0/22
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
channel-protocol lacp
channel-group 3 mode active
interface FastEthernet0/23
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
channel-protocol lacp
channel-group 3 mode active
interface FastEthernet0/24
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
channel-protocol lacp
channel-group 3 mode active
interface GigabitEthernet0/1
interface GigabitEthernet0/2
interface Vlan1
no ip address
shutdown
interface Vlan10
mac-address 00e0.f9ae.ec01
ip address 172.16.57.123 255.255.255.128
interface Vlan20
mac-address 00e0.f9ae.ec02
ip address 172.16.56.251 255.255.255.0
interface Vlan30
mac-address 00e0.f9ae.ec03
ip address 172.16.57.136 255.255.255.192
router ospf 1
router-id 4.4.4.4
log-adjacency-changes
redistribute static
redistribute connected
network 172.16.56.0 0.0.0.255 area 0
network 172.16.57.0 0.0.0.127 area 0
network 172.16.57.128 0.0.0.63 area 0
network 172.16.48.0 0.0.0.7 area 1
ip classless
ip route 172.16.57.0 255.255.255.128 Vlan10
ip route 172.16.57.128 255.255.255.128 Vlan30
ip flow-export version 9
layer3-1(config)#
hostname layer3-2
ip routing
no ip domain-lookup
spanning-tree mode pvst
!
interface Port-channel3
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface Port-channel4
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface FastEthernet0/1
no switchport
ip address 172.16.48.3 255.255.255.248
duplex auto
speed auto
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface FastEthernet0/13
!
interface FastEthernet0/14
!
interface FastEthernet0/15
!
interface FastEthernet0/16
!
interface FastEthernet0/17
!
interface FastEthernet0/18
!
interface FastEthernet0/19
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
channel-protocol lacp
channel-group 4 mode active
!
interface FastEthernet0/20
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
channel-protocol lacp
channel-group 4 mode active
!
interface FastEthernet0/21
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
channel-protocol lacp
channel-group 4 mode active
!
interface FastEthernet0/22
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
channel-protocol lacp
channel-group 3 mode active
!
interface FastEthernet0/23
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
channel-protocol lacp
channel-group 3 mode active
!
interface FastEthernet0/24
switchport trunk native vlan 99
switchport trunk encapsulation dot1q
switchport mode trunk
channel-protocol lacp
channel-group 3 mode active
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
no ip address
shutdown
!
interface Vlan10
mac-address 00d0.9704.b901
ip address 172.16.57.124 255.255.255.128
!
interface Vlan20
mac-address 00d0.9704.b902
ip address 172.16.56.252 255.255.255.0
!
interface Vlan30
mac-address 00d0.9704.b903
ip address 172.16.57.137 255.255.255.192
!
router ospf 1
router-id 3.3.3.3
log-adjacency-changes
network 172.16.57.128 0.0.0.63 area 0
network 172.16.57.0 0.0.0.127 area 0
network 172.16.56.0 0.0.0.255 area 0
network 172.16.48.0 0.0.0.7 area 1
neighbor 172.16.48.4
!
ip classless
ip route 172.16.57.0 255.255.255.128 Vlan10
ip route 172.16.57.128 255.255.255.128 Vlan30
!
ip flow-export version 9
!
line con 0
!
line aux 0
!
line vty 0 4
login
!
End
layer3-2(config)#
Solved! Go to Solution.
02-27-2019 08:55 PM
Hi @balde ,
I see that the two L3 have the same network, being that when entering the command no switchport those interfaces are left with a router port.
If you can, create a new network and assign different networks. One for the connection of a switch with his router and another one for the connection of the other switch with his router.
Now, if you must use a single network for the two switches, I recommend creating a communication vlan, which would make the two switches, through SVI, belong to the same network (same number of vlan). For this, you must configure subinterfaces in the two routers, encapsulated with the vlan number of the communication vlan.
I hope you can understand me.
Regards
02-27-2019 08:55 PM
Hi @balde ,
I see that the two L3 have the same network, being that when entering the command no switchport those interfaces are left with a router port.
If you can, create a new network and assign different networks. One for the connection of a switch with his router and another one for the connection of the other switch with his router.
Now, if you must use a single network for the two switches, I recommend creating a communication vlan, which would make the two switches, through SVI, belong to the same network (same number of vlan). For this, you must configure subinterfaces in the two routers, encapsulated with the vlan number of the communication vlan.
I hope you can understand me.
Regards
02-28-2019 09:40 AM
thank you a lot !!!
I changed the L3 switches interfaces from routing to switch with the command swithcport then the following commands
interface FastEthernet0/1
switchport access vlan 99
switchport trunk native vlan 99
switchport trunk allowed vlan 10,20,30
switchport trunk encapsulation dot1q
switchport mode trunk
now i the inter vlan routing problem is solved
Thanks angain !!!
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