I have a Cisco ASA which is dropping packets on both the inside & outside interfaces. Each of the routers which connect to it via VPN are dropping packets on their ATM interface. Any suggestions or ideas on how to track this fault down? It only seems to of had the problem since the introduction of VOIP (a Mitel 3300) at the HQ site, but looking at a packet capture there are no VOIP packets arriving at the interface on the ASA.
Any suggestions most welcome.