MPLS with WCCP do not mix!

Problem:
So I was working on implementing WCCP redirection for networks to get TCP accelerated between two data centers and I ran into a problem. The problem was that subnets behind the core switches were not getting WCCP redirected into the WAAS units. So I wonder why? It’s matching the redirect-list ACL and shows up in [...]

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Another SIP CME Configuration

CME - CLI Config
This is a sample CLI configuration for Call Manager Express (CME).
Please make sure to setup all of the local functionality of the CME before trying to setup the SIP Trunks.
When you are ready to setup the SIP trunks, the first thing you wll need to do is setup a translation rule. The [...]

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ASA 5500 SSL VPN LDAP Authentication

In this post I demonstrate how to configure the Cisco Adaptive Security Appliance (ASA) to use an LDAP server for authentication of WebVPN users. The LDAP server in this example is Microsoft Active Directory. In this example Lightweight Directory Access Protocol (LDAP) authentication is configured for WebVPN users, but this configuration can be used for [...]

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Call Manager Express to 3rd Party SIP Provider Sample Configuration

This took me about 8-12 hours to figure out (considering I don’t really have voip experience), but I recently canceled one of my consulting contracts where I was using EasyVPN client on my home 2811 and terminated into one of my consulting client’s Cisco VPNc3000 concentrator for Call Manager 4.3 communication for my IP phones [...]

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WCCPv1 vs. WCCPv2

WCCPv1:
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1. Only single router can participate in a cluster of WCCP-capable devices
2. Intercepts and redirects HTTP and HTTPS
3. Does not allow load balancing
WCCPv2:
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1. Supports multiple routers can redirect to clusters and devices, allows for load balancing.
2. Support for non HTTP and HTTPS protocols such as other TCP or UDP packets.
3. Capable of MD5 authentication.
4. Notification [...]

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WCCP “accelerated” option

This option allows 6500/7600 to use hardware acceleration for WCCP packets in Layer 2. This method in theory allows you to utilize up to 3Gbps of traffic on a PFC2 card, perhaps even more with a PFC3B.
The device (eg: WAE or ACNS) needs to have layer 2 adjacency with the 6500 switch in order to [...]

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OSPF packet types and LSA packets

OSPF packet types are different from OSPF LSA types.
LSA’s are represented by one of these packet types.
Check out the diagram to get a better understanding for the different types of OSPF packet types.
Step 1: Hello packet received from a neighbor router causes an OSPF interface to be in INIT STATE regardless of other variables at [...]

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