How does a firewall/vwire handle ethercode 0x0721

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 
Announcements
Please sign in to see details of an important advisory in our Customer Advisories area.

How does a firewall/vwire handle ethercode 0x0721

L1 Bithead

Hi,

 

we are currently setting up a clean pipe for Cisco ACI setup, so the intra-ACI traffic will pass the vwire, to have basic IPS inspection done.

Our setup is an A/P HA with a vwire.

Cisco is using Layer-2 ping with ethercode 0x721 to check, if the path is free or blocked.

 

We have some issues with failovering and we doubted, that the L2-Pings are even sent out, because with packet-capture we cannot see anything. Also there was the case, that ACI saw both peers as up, but the passive firewall shouldn't pass any traffic on the vwire.

 

Does anyone of you got ideas regarding that? Maybe special config is necessary, to have this packets pass? I'm only aware of zone-protection settings, where we can exlude inspection for certain ethercodes, but ZP is not active on the vwire zones - also no counters are seen there.

 

Looking forward to any input

 

Best Regards

Johannes

0 REPLIES 0
  • 874 Views
  • 0 replies
  • 0 Likes
Like what you see?

Show your appreciation!

Click Like if a post is helpful to you or if you just want to show your support.

Click Accept as Solution to acknowledge that the answer to your question has been provided.

The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!

These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the LIVEcommunity as a whole!

The LIVEcommunity thanks you for your participation!