Hello, I have configured my 881 to perform inter-VLAN routing i.e. I am using ports 0-2 as tagged switch ports (with PC's plugged in and addressed on their relevant subnets) and port 3 as a trunk feeding in to port 4 as a router on stick configuration.
For some reason I am unable to ping between subnets. It seems the trunk is failing ?
Could someone please take a look and help me out. It must be something basic. This is driving me crazy.
p.s. I have entered 'switchport trunk encapsulation dot1q' on port 3 (the trunk) however it is not showing up.
Thank you kindly for any help.
Building configuration...
Current configuration : 1564 bytes
!
! Last configuration change at 22:45:55 UTC Wed Apr 29 2015
version 15.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
no aaa new-model
memory-size iomem 10
!
ip flow-cache timeout active 1
ip cef
no ipv6 cef
!
!
license udi pid CISCO881-K9 sn FGL171824DY
!
interface FastEthernet0
switchport access vlan 10
no ip address
!
interface FastEthernet1
switchport access vlan 10
no ip address
!
interface FastEthernet2
switchport access vlan 2
no ip address
!
interface FastEthernet3
switchport trunk native vlan 15
switchport mode trunk
no ip address
spanning-tree portfast
!
interface FastEthernet4
no ip address
ip flow ingress
ip flow egress
duplex auto
speed auto
!
interface FastEthernet4.1
encapsulation dot1Q 15 native
ip address 192.168.15.1 255.255.255.0
!
interface FastEthernet4.2
encapsulation dot1Q 2
ip address 192.168.2.1 255.255.255.0
!
interface FastEthernet4.10
encapsulation dot1Q 10
ip address XXX.XXX.XXX.XXX 255.255.255.252 <== altered to block public ip address details
!
interface Vlan1
ip address 192.168.1.1 255.255.255.0
!
ip default-gateway XXX.XXX.XXX.XXX <== altered to block public ip address details
ip forward-protocol nd
no ip http server
no ip http secure-server
ip flow-export source FastEthernet4
ip flow-export version 5 origin-as
ip flow-export destination 192.168.247.232 9996
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ip route 0.0.0.0 0.0.0.0 XXX.XXX.XXX.XXX <== altered to block public ip address details
!
!
line con 0
no modem enable
line aux 0
line vty 0 4
login
transport input all
!
!
end
