DAI combined with DHCP snooping binding table secures against man in the middle by blocking ARP requests not in binding table.
I am using DAI in combination with PVLANs, however arp entries do not flush even after the configured arp time out expires. This means, DAI no longer works for me as when DHCP binding table is flushed for a given MAC address, the ARP entry mapping still exist...so I can still communicate with host on other end of PVLAN.
When I clear the arp entry manually, DAI seems to function by disallowing a new MAC-IP mapping.
1-Sticky arp has been disabled globally.
2-port is definitely not trusted for either ARP or DHCP.
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
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...