Hi,
I am trying to configure router on a stick with 2811 and 3750, but I just cannot get it to work - vlans are not getting propagated from 3750 to 2811:
3750:
interface FastEthernet1/0/48
switchport trunk encapsulation dot1q
switchport trunk native vlan 100
switchport mode trunk
speed 100
duplex full
...
3750#sh vtp s
VTP Version : running VTP2
Configuration Revision : 1
Maximum VLANs supported locally : 1005
Number of existing VLANs : 8
VTP Operating Mode : Server
VTP Domain Name : NULL
VTP Pruning Mode : Disabled
VTP V2 Mode : Enabled
VTP Traps Generation : Disabled
MD5 digest : 0xEC 0x70 0xEB 0x0B 0x7D 0xC0 0xC4 0xDE
Configuration last modified by 192.168.1.205 at 3-2-93 18:33:32
Local updater ID is 192.168.1.205 on interface Vl1 (lowest numbered VLAN interface found)
3750#sh vtp c
VTP statistics:
Summary advertisements received : 0
Subset advertisements received : 0
Request advertisements received : 0
Summary advertisements transmitted : 73
Subset advertisements transmitted : 7
Request advertisements transmitted : 0
Number of config revision errors : 0
Number of config digest errors : 0
Number of V1 summary errors : 0
VTP pruning statistics:
Trunk Join Transmitted Join Received Summary advts received from
non-pruning-capable device
---------------- ---------------- ---------------- ---------------------------
Fa1/0/46 0 0 0
Fa1/0/48 0 0 0
3750#sh int fa1/0/48 switchport
Name: Fa1/0/48
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: dot1q
Negotiation of Trunking: On
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 100 (SERVER)
Administrative Native VLAN tagging: enabled
Voice VLAN: none
Administrative private-vlan host-association: none
Administrative private-vlan mapping: none
Administrative private-vlan trunk native VLAN: none
Administrative private-vlan trunk Native VLAN tagging: enabled
Administrative private-vlan trunk encapsulation: dot1q
Administrative private-vlan trunk normal VLANs: none
Administrative private-vlan trunk associations: none
Administrative private-vlan trunk mappings: none
Operational private-vlan: none
Trunking VLANs Enabled: ALL
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL
Protected: false
Unknown unicast blocked: disabled
Unknown multicast blocked: disabled
Appliance trust: none
3750#
2811:
interface FastEthernet0/0
no ip address
duplex full
speed 100
!
interface FastEthernet0/0.1
encapsulation dot1Q 100 native
!
interface FastEthernet0/0.2
encapsulation dot1Q 102
!
interface FastEthernet0/0.3
encapsulation dot1Q 202
2811#sh vtp s
VTP Version : 2
Configuration Revision : 0
Maximum VLANs supported locally : 36
Number of existing VLANs : 5
VTP Operating Mode : Client
VTP Domain Name : NULL
VTP Pruning Mode : Disabled
VTP V2 Mode : Enabled
VTP Traps Generation : Disabled
MD5 digest : 0x9A 0xC0 0x5E 0x60 0x9B 0xD6 0xE3 0x98
2811#sh vtp c
VTP statistics:
Summary advertisements received : 0
Subset advertisements received : 0
Request advertisements received : 0
Summary advertisements transmitted : 0
Subset advertisements transmitted : 0
Request advertisements transmitted : 0
Number of config revision errors : 0
Number of config digest errors : 0
Number of V1 summary errors : 0
VTP pruning statistics:
Trunk Join Transmitted Join Received Summary advts received from
non-pruning-capable device
---------------- ---------------- ---------------- ---------------------------
2811#
IOS are 12.4. Tried both VTP1 and VTP2, empty and various domain names, client and transparent modes - all to no avail. I also tried deleting vlan.dat from 2811.
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