07-01-2009 09:45 AM - edited 03-04-2019 05:17 AM
I am sitting on switch A-
I can see switch B with a
show cdp neigh
Device ID: Switch
Entry address(es):
IP address: 172.20.111.202
Interface: GigabitEthernet2/0/18, Port ID (outgoing port): GigabitEthernet2/0/
3
I have trunking enabled to allow all vlans
Port Vlans allowed on trunk
Gi1/0/18 1-4094
Gi1/0/50 110-111
Gi1/0/51 151-152
Gi1/0/52 151-152
Gi2/0/18 1-4094
Gi2/0/50 110-111
Gi2/0/51 151-152
Gi2/0/52 151-152
Port Vlans allowed and active in management domain
Gi1/0/18 1,50,110-111,150-153
Gi1/0/50 110-111
Port Vlans allowed and active in management domain
Gi1/0/51 151-152
Gi1/0/52 151-152
Gi2/0/18 1,50,110-111,150-153
Gi2/0/50 110-111
Gi2/0/51 151-152
Gi2/0/52 151-152
and have configured a vlan 111 with an IP address..here is some of the config of switch B
Building configuration...
subnet-zero !
!
!
!
!
!
!
interface FastEthernet0
no ip address
shutdown
!
!
interface GigabitEthernet1/0/21
!
interface GigabitEthernet1/0/22
!
interface GigabitEthernet1/0/23
!
interface GigabitEthernet1/0/24
!
interface GigabitEthernet1/0/25
!
interface GigabitEthernet1/0/26
!
interface TenGigabitEthernet1/0/1
!
interface TenGigabitEthernet1/0/2
!
111
spanning-tree portfast
!
interface GigabitEthernet2/0/19
switchport access vlan 111
!
interface GigabitEthernet2/0/20
!
interface GigabitEthernet2/0/21
!
interface GigabitEthernet2/0/22
!
interface GigabitEthernet2/0/23------------
switchport mode trunk
!
interface GigabitEthernet2/0/24
!
interface GigabitEthernet2/0/25
switchport access vlan 811
!
interface GigabitEthernet2/0/26
switchport access vlan 111
!
interface TenGigabitEthernet2/0/1
!
interface TenGigabitEthernet2/0/2
!
interface Vlan1
no ip address
shutdown
!
interface Vlan111---------------------------
ip address 172.20.111.202 255.255.255.0 !
interface Vlan811
ip address 192.168.100.10 255.255.255.0 !
ip classless
ip http server
!
!
control-plane
!
!
But i cannot ping or telnet from switch A which is directly connected to switch B
via trunk
Solved! Go to Solution.
07-01-2009 11:35 AM
Richard
server is in vlan 111 with a default-gateway of 172.20.111.1 ?
If you allocate a vlan 110 interface on switch B then you have to use a default-gateway out of the vlan 110 subnet. You cannot use the same default-gateway as the server.
You could create a vlan 111 interface instead on the 3120 switch and then use the server default-gateway - see previous post.
Jon
07-01-2009 11:32 AM
Richard
Just to follow up on last post.
You can either
1) have vlan 111 interface on 3120 and use default-gateway of CSS IP address in 172.20.111.x subnet
or
2) have vlan 110 interface on 3120 and use default-gateway of CSS IP address in 172.20.110.x subnet.
Jon
07-01-2009 12:04 PM
great this is starting to make alot more sense...thx!!
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