06-05-2019 08:47 PM
Hi all,
We have 2 network connected together with fiber connection.
Network A belongs to us and network B belongs to mother company with both side have multiple VLANs
Network A (our switch) have the following VLANs configured as follows:
interface Vlan1
no ip address
!
interface Vlan65
no ip address
!
interface Vlan100
no ip address
!
interface Vlan101
no ip address
!
interface Vlan102
no ip address
!
interface Vlan103
ip address 10.7.3.254 255.255.255.0
!
Our main local Vlanis 103, 65 is for Video Conference purpose. Trunk port config as follows:
interface GigabitEthernet1/1/1
description 16F-WS-C2960X Gig 1/0/52
switchport trunk native vlan 100
switchport trunk allowed vlan 2,65,100-109
switchport mode trunk
Network B have Vlan65 as follows:
interface Vlan65
ip address 10.65.2.65 255.255.255.248
(We just got this information from them)
We have also configured a port as follows:
interface GigabitEthernet2/0/14
switchport access vlan 65
switchport mode access
spanning-tree portfast
and connected to a device with IP:
10.65.2.68/255.255.255.248 Gateway:10.65.2.65
While mother company VLAN 65 have connect to a device IP 10.65.2.66
The problem is our switch now can ping both 10.65.2.65 and 10.65.2.66 but we cannot ping 10.65.2.68 which belongs to our VC Device. Nether do 10.65.2.68 ping or connect 10.65.2.65/66.
We cannot check the configuration of Network B switch. What seems to be the problem ? THX
06-05-2019 08:58 PM
06-05-2019 09:16 PM
06-05-2019 11:48 PM
As per your description below you have confifgured L3 point to point interface.
The problem is our switch now can ping both 10.65.2.65 and 10.65.2.66 but we cannot ping 10.65.2.68 which belongs to our VC Device. Nether do 10.65.2.68 ping or connect 10.65.2.65/66.
you need to extend the vlan using Trunk configuration, how you did on Network A
nterface GigabitEthernet1/1/1
description 16F-WS-C2960X Gig 1/0/52
switchport trunk native vlan 100
switchport trunk allowed vlan 2,65,100-109
switchport mode trunk
Network B - same configuration required other side where the interface connected from network A to network B
here is the steps :
1. remove the connected cable.
2. default the interface config
3 apply below config.
interface GigabitEthernet 1/0/52
description to Network-A
switchport trunk native vlan 100
switchport trunk allowed vlan 2,65,100-109
switchport mode trunk
4. We have also configured a port as follows:
interface GigabitEthernet2/0/14
switchport access vlan 65
switchport mode access
spanning-tree portfast
5. connect the device and test it.
06-06-2019 12:10 AM
Thx for all your help. I was requested for the config of NETWORK B already but it take times to get it from the other party and want to ensure if i have donw anything wrong since it is long time since last i config switches. Will update again once i got it.
06-09-2019 08:01 PM
Another side help checked their switch that they had no such setting in the interface
switchport trunk native vlan 100
switchport trunk allowed vlan 2,65,100-109
switchport mode trunk
adding them back but still in vain. Any other possibility ?
06-10-2019 09:16 PM
Anyone could offer help ? i got all the config. files. I can email to you if anyone can help. THX
06-22-2019 05:42 PM
sorry was away on vacation, can you post the latest config and tests done , so we can assits from here.
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