Has anyone seen the following DHCP issue with DHCP snooping enabled across the LAN, Option 82 disabled on all switches, and trusting all trunk links and the port to DHCP server?
If a client plugs into a different port configured for a different VLAN, the client appears to obtain the same IP address from the previous VLAN. If you release/renew, the client still gets the old address. However, if you release, disconnect, and reconnect, the client will get an address on the correct VLAN.
Why doesn't a simple release/renew work?
This is happing for many users, Windows OS, and across multiple switches.
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...