IP Expert Lab 10 Affordable Alternatives LAB 10
I don’t know if it’s just a bug in the IOS code or not, but I’ve seen on several occasions that this does not work with Ethernet; however it works just fine with FastEthernet and GigEthernet sub-interfaces and changing the native vlan to something other than 1.
—–Original Message—– From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of devecchio Sent: Tuesday, August 08, 2006 2:47 PM To: ccielab@groupstudy.com Cc: ‘Joshua’ Subject: IP Expert Lab 10 Affordable Alternatives LAB 10
Team,
In lab 10 router 4 has 2 Ethernet interfaces.. My 2600 series router has only one interface so I am trunking 2 vlans to that routerss interface by creating sub interfaces with vlan tags etc. I can ping the switch’s interface vlan 100 from router 4 but I can not 204.12.1.254 (BB3) from router 4. If I remove the native vlan tags everything works fine. Evidently there is a gap in my native vlan knowledge so will someone please lend a hand to help me understand. If I figure it out before anyone responds I’ll be sure to post my findings..
The I am having the following problem and perhaps it is a misunderstanding of the technology.
Router 4 has the following configuration
!
interface Ethernet0/0
no ip address
half-duplex
!
interface Ethernet0/0.43
encapsulation dot1Q 43 native
ip address 204.12.1.4 255.255.255.0
!
interface Ethernet0/0.100
encapsulation dot1Q 100
ip address 164.1.47.4 255.255.255.0
The 3550 has this configuration for router 4s uplink
!
Rack1SW1#show run int fa0/4
Building configuration…
Current configuration : 189 bytes
!
interface FastEthernet0/4
switchport trunk encapsulation dot1q
switchport trunk native vlan 43
switchport trunk allowed vlan 43,100
switchport mode trunk
switchport nonegotiate
end
Rack1SW1#
Category: Apple iPod
