quality of service, QoS on a VPN tunnel, running through a Cisco ASA

Priority or Low Latency Queueing – This is the primary method used when dealing with traffic flows that do not react well to network latency, such as voice and video etc. Traffic in the Priority queue will be processed and transmitted ahead of all other traffic.

Error: The image in the archive which would be used to upgrade 
Error: system number 1 does not support the same feature set.

I just got this error message while upgrading a Cisco Catalyst 3560 from 12.2(35)SE5 to 12.2(44)SE. The older version was IP BASE and the new version is ADVANCED IP SERVICES.

Cisco Identity NAT vs NAT Exemption

According to the Cisco ASA: All-in-One Firewall, IPS, and VPN Adaptive Security Appliance book, “The main difference between identity NAT and NAT exemption is that with identity NAT, the traffic must be sourced from the address specified with the nat 0 statement, whereas with NAT exemption, traffic can be initiated by the hosts on either side of the security appliance. NAT exemption is a preferred method to bypass traffic when it is flowing over a VPN tunnel.”

Category Archives: Cisco

quality of service, QoS on a VPN tunnel, running through a Cisco ASA

Cisco 3750 upgrade feature set

Cisco Identity NAT vs NAT Exemption

Categories