I am in the process of building out a test environment, on an IOS router, that will be transferred to ASRs once they arrive. It is a multi-tenant environment incorporating VRFs to isolate customer networks. Customers connect via L2L VPN with an ASA o...

I am having an issue with an ASA 5510, running 8.4(1) code, causing outbound mail to remain in the SMTP server queue (Exchange 2007). This only happens with some remote mail servers. The connection usually ends with the remote server eventually sendi...

I need some VLAN security advice / recommendations on the following...We have a stack of ws-c3750x-48 Layer3 switches that hosts 100+ VLANs. The VLANs are trunked to Hyper-V virtual host servers. Each virtual host cluster hosts VMs on multiple virtua...