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Monthly Archives: July 2011
Inter-VLAN routing on a Cisco ASA with same security interfaces
The Problem: You’re setting up inter-VLAN routing on your Cisco ASA firewall (5510, et al) using sub-interfaces. There should be no restrictions on what traffic can flow where between the internal VLANs, so you’ve set the same security level on … Continue reading
Posted in Cisco Networking
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Trunk connection problems between ASA firewall and Cisco switch
The Problem: You’ve set up a trunk link between a Cisco ASA firewall (5505, 5510, et al) and a Cisco switch (2960, 3560, et al). However, you’re not able to establish a connection between them at either Layer 2 or … Continue reading
Posted in Cisco Networking
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