I want to establish a setup at a customer location with enhanced security features, especially Layer2 access lists.
I hoped it would be possible to define access groups with specific ACLs to only allow known MAC addresses access to the network.
Applying these groups to VLANs doesn't seem possible because, if I'm not mistaken, these could only be applied to physical interfaces but this limitation seems acceptable as we are not going to use VMPS and have to configure VLAN changes manually, so we can also change the access group membership manually.
Using 802.1x is not (yet) desirable.
I was hardly looking to find some details according limits, as for example maximum number of access groups, layer2 acls or other limitations which might interfere with my desired setup.
There will be one access group per vlan and each port will get an access group assigned to prevent "untrusted" access to the network (in fact, trusting on mac addresses is not very secure either but nevertheless it's better than nothing)
One known limitation on layer3 (!) ACLs is the subnet mask which has to be the same for all ACLs on a single physical interface but this is not of interest for the described setup.
Perhaps someone has tried something similar and wants to tell about his/her experiences.
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
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In this session you can learn more about Layer 3 multicast and the best
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