10-22-2018 04:25 AM - edited 03-05-2019 11:00 AM
Hi,
I am not able to reach router interface from the l3 switch connected l2 switch. The topology is R2 <--> L3 Switch <--> L2 switch.
The config:
R2:
interface FastEthernet0/0
ip address 10.2.2.1 255.255.255.0
duplex auto
speed auto
interface Vlan1
no ip address
!
router eigrp 1
network 10.2.0.0 0.0.255.255
auto-summary
!
ip route 10.20.20.0 255.255.255.0 10.2.2.2
!
L3 Switch:
interface Ethernet0/0
no switchport
ip address 10.2.2.2 255.255.255.0
!
interface Ethernet0/1
switchport access vlan 2
switchport mode access
!
interface Ethernet0/2
switchport trunk allowed vlan 2
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface Vlan1
no ip address
!
interface Vlan2
ip address 10.20.20.1 255.255.255.0
!
!
router eigrp 1
network 10.2.0.0 0.0.255.255
network 10.20.0.0 0.0.255.255
!
ip forward-protocol nd
!
!
no ip http server
no ip http secure-server
ip route 0.0.0.0 0.0.0.0 10.2.2.1
!
L2 switch:
interface Ethernet0/2
switchport trunk allowed vlan 2
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface Ethernet0/3
switchport access vlan 2
!
interface Vlan1
no ip address
no ip route-cache
shutdown
!
interface Vlan2
IP address 10.20.20.2 255.255.255.0
no IP route-cache
!
interface Vlan3
no IP address
no IP route-cache
shutdown
!
ip default-gateway 10.20.20.1
10-22-2018 04:41 AM
Hello,
add 'no auto-summary' to the EIGRP configs on both the router and the L3 switch...
10-22-2018 04:46 AM
done. still not reachable. It is not because of auto-summary. Refer the attached pic for topology.
10-22-2018 05:13 AM
Hi there,
Dome the L3 switch have routing configured?:
! ip routing !
cheers,
Seb.
10-22-2018 05:42 AM
Please attach config for all devices. Please do:
show cdp neighbors on all three devices.
show vlans | i active on layer three and layer 2 switch
show int "interface" trunk on all trunk interfaces
show ip route on all three devices
Please mark helpful posts
10-22-2018 05:34 AM
10-22-2018 05:44 AM
10-22-2018 05:47 AM
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