Non-Cisco switch between Cisco switches and VTP protocol

[eeebbunee]

Hello Professional,

I know VTP is Cisco exclusive protocol, but not sure how it works.

For example, If my network infrastructure as like this:

  <<C3750X - Core switch>> -- <<PFSense Firewall>> -- <<Unifi Switch>> -- <<Cisco 2960X>>

Can Cisco 2960X switch got update (VTP) from C3750X?

or Cisco 2960X won't get any update? 

[balaji.bandi]

VTP no that will not be going to work, it required L2 connectivity.

[MHM Cisco World]

if your FW can do Bridge between two link then I think you can bypass the FW.
otherwise since VTP is L2 protool it will not pass.

[eeebbunee]

Thank you for the response,

If I can add in detail, actually, PFsense firewall is configured as a bridge mode.

so, 

  <<C3750X - 코어 스위치>> -- <<PFSense 방화벽>> -- <<Cisco 2960X>> : VTP update Works

  <<C3750X - 코어 스위치>> -- <<PFSense 방화벽>> -- <<Unifi 스위치>> -- <<Cisco 2960X>> : Not Works

In this case, considering that *Unifi switch (L2) can't recognize VTP update.* makes sense?

Otherwise, is there any other reason that I keep failing VTP update?

 - VTP configure is same with other L2 switches (VTP version, VTP Password..)

 - MD5 digest does not match ever since I change the connection to be firewall - unifi switch - C2960 switch.

Thank you Sir.

[MHM Cisco World]

I think because Unifi can not deal with multicast L2 address of VTP frame. 
can check see if Unifi see cisco SW as neighbor via CDP, because as I know both VTP and CDP use same Multicast L2 address.