transparent

How bridging works in Cisco routers?

One of the layer two technologies that the CCIE candidate can face is bridging. What bridging does is that it transforms the Router's behavior of IP routing into a switch like behavior. The underlying commands are same, they differ when use different modes of Bridging on the router. There are...

Moving from Explicit Proxy to Transparent Proxy – part 4

We have reached into a finalized design to run transparent proxy setup. The figure below shows the network diagram.

Moving from Explicit Proxy to Transparent Proxy – part 3

While we had overall idea of the design direction, we have identified other points that were integrated into the final design. The diagram below shows the almost finalized design.

Moving from Explicit Proxy to Transparent Proxy – part 2

If you have read the first part of this series, you would know that there is major upgrade plan move from explicit proxy...

Moving from Explicit Proxy to Transparent Proxy – part 1

Proxy can  be implemented in either a explicit or transparent mode. The deployment of proxy (network logical location) can be either in-line (bridge) or out-line. Since we are planning to more from the explicit mode to transparent mode, various changes are required to be done, on both network...

Configuring IP DHCP Snooping.

The other day, a smart user (i consider him evil) attached a ADSL modem to the network port. What he didn't realize that his device was programmed to work as DHCP server. As a result, the whole vlan started getting the wrong IP address, and connectivity was lost. After investigation, we realized a...

How to design transparent proxy?

Almost every organization uses proxy. The benefits of proxy servers are countless. Some of these benefits are mentioned:

• Add Accounting
• Add Authorization
• Reduce the load on the external (wan) link