can access multiple vlan's

[Glitchen]

Can someone see why I can ping from vlan 25 to vlan 5 and vlan 5 to vlan 55 and vlan... ect ect.

I can't figure this out and would appreciate quick help.
Thanks in advance!

Current configuration : 4430 bytes
!
version 12.1
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname BC03_A
!
!
username USERID privilege 15
ip subnet-zero
!
!
!
spanning-tree mode rapid-pvst
no spanning-tree optimize bpdu transmission
spanning-tree extend system-id
!
!
macro global description cisco-global
!
!
interface Port-channel5
switchport mode trunk
!
interface GigabitEthernet0/1
description blade1
switchport access vlan 18
switchport trunk native vlan 18
switchport trunk allowed vlan 18
switchport mode trunk
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/2
description blade2
switchport access vlan 21
switchport trunk native vlan 21
switchport trunk allowed vlan 21
switchport mode trunk
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/3
description blade3
switchport access vlan 8
switchport trunk native vlan 8
switchport trunk allowed vlan 8
switchport mode trunk
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/4
description blade4
switchport access vlan 99
switchport trunk native vlan 99
switchport trunk allowed vlan 99
switchport mode trunk
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/5
description blade5
switchport access vlan 10
switchport trunk native vlan 10
switchport trunk allowed vlan 10
switchport mode trunk
!
interface GigabitEthernet0/6
description blade6
switchport access vlan 10
switchport trunk native vlan 10
switchport trunk allowed vlan 10
switchport mode trunk
!
interface GigabitEthernet0/7
description blade7
switchport access vlan 10
switchport trunk native vlan 10
switchport trunk allowed vlan 10
switchport mode trunk
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/8
description blade8
switchport access vlan 10
switchport trunk native vlan 10
switchport trunk allowed vlan 10
switchport mode trunk
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/9
description blade9
switchport access vlan 55
switchport trunk native vlan 55
switchport trunk allowed vlan 55,99
switchport mode trunk
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/10
description blade10
switchport access vlan 55
switchport trunk native vlan 55
switchport trunk allowed vlan 55,99
switchport mode trunk
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/11
description blade11
switchport access vlan 140
switchport mode access
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/12
description blade12
switchport access vlan 5
switchport trunk native vlan 5
switchport trunk allowed vlan 5
switchport mode trunk
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/13
description blade13
switchport trunk native vlan 5
switchport trunk allowed vlan 5
switchport mode trunk
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/14
description blade14
switchport access vlan 25
switchport trunk native vlan 25
switchport trunk allowed vlan 25
switchport mode trunk
spanning-tree portfast trunk
spanning-tree bpdufilter enable
!
interface GigabitEthernet0/15
description mgmt1
switchport trunk allowed vlan 1
switchport mode trunk
switchport nonegotiate
spanning-tree cost 100
!
interface GigabitEthernet0/16
description mgmt2
switchport trunk allowed vlan 1
switchport mode trunk
switchport nonegotiate
spanning-tree cost 100
!
interface GigabitEthernet0/17
description extern1
switchport mode trunk
channel-group 5 mode active
!
interface GigabitEthernet0/18
description extern2
switchport mode trunk
channel-group 5 mode active
!
interface GigabitEthernet0/19
description extern3
switchport mode trunk
channel-group 5 mode active
!
interface GigabitEthernet0/20
description extern4
switchport mode trunk
channel-group 5 mode active
!
interface Vlan1
ip address 10.79.1.56 255.255.255.0
no ip route-cache
management
!
ip default-gateway 10.79.1.50
ip http server
snmp-server community xxxxxx RO
snmp-server community xxxxxx RW
!
line con 0
line vty 0 4
login local
line vty 5 15
login local
!
!
end

 

[vipergg]

Need more info like what kind of switch it is . Is it a layer 3 switch etc... If its cisco check to see if all vlans were created witht he "show vlan" command .

 

[eurobadger]

Are you using 802.1q?
If so is there anywhere in your network that you have point where multiple trunks can connect?
It might be that you have numerous untagged packets (in your natve VLANs, regardless of VLAN number). In such circumstances these packets can be the mechanism by which the VLANs can communicate.

EB