network, cisco, firewall, routers, call manager, switches, rspan, configure, root Networking - Tech-Recipes

Networking tutorials

How to convert VMware virtual disks from thin to thick with the vSphere client

contributed by Ben Kendall on February 2, 2011 under Networking

Have you ever provisioned a new virtual machine in vSphere, put it in production, and discovered belatedly that you mistakenly used “thin provisioned” virtual disks? This can often happen when deploying from a template which was thin provisioned since the default option is to use the same disk format as the source. Good news! It is quite easy to convert these to thick with the vSphere client and your mouse.

VOIP / Mobile Data : How to make incoming and outgoing VOIP calls for free w/Google Voice and an internet connection (USA tested only)

contributed by Jimmy Selix on July 13, 2010 under Networking

This recipe will explain how to utilize several free services to get free incoming and outgoing calls (2000 minutes limit/month) in the USA. We will be utilizing a VOIP standard called SIP (Session Initiation Protocol) to allow us to use our mobile data only device or pc internet connection to make up to 2000 minutes of free VOIP calls w/o the complexities of creating one’s own PBX (SIP client required on device of course, Android and iOS4 have several clients, most are retail though).

Route selection by host reachability with Cisco SLA

contributed by Al Banks on February 3, 2009 under Cisco router

Cisco’s SLA features, available in IOS other than IP Base, allow modification of the routing table based on a monitored item. In this example, we’ll monitor an Internet address, and change the default route if that address is unreachable.

Cisco Unity Unified Messages Do Not Work in Blackberry or Windows Mobile

contributed by Al Banks on July 1, 2008 under Cisco call manager

By default, Cisco Unity Unified messages don’t work in Blackberry or windows mobile devices. Here’s how to make it work.

Cisco Hot Standby Router Protocol

contributed by shadowman on December 24, 2007 under Cisco networking

Two routers are connected to the network and the two default gateways do not provide a completely reliable path in the event of an outage.
Although the ITA has some newer IP hosts that support dynamic router discovery with the ICMP Router Discovery Protocol (IRDP), it mostly has a large class of legacy host implementations that do not. These hosts are unable to find a new router when their default gateway becomes unavailable.The ITA is also concerned with IRDP’s administrative and processing overhead, security issues, and lack of support on the legacy platforms.Configuring HSRP on the two routers provides a fast fail-over mechanism that is transparent to the users. This allows hosts on the LAN segment to maintain access to the Web router if a single point of
failure occurs.

Rate Limiting on Juniper Networks

contributed by dpope202 on June 27, 2007 under Juniper Networking

This Tech-recipe describes the steps for setting up rate limiting on Juniper networks.

Introduction to Juniper Networks

contributed by dpope202 on under Juniper Networking

This introduction to Juniper Networks includes:

Hardware Overview
Software Overview
CLI Navigation
Configuration
Troubleshooting

Tutorial: Standard ACL (Access Control List) Basics

contributed by aaronm on June 18, 2007 under Cisco router

This is a BASIC explanation of Standard ACL’s that SHOULD be fairly easy to understand and span the spectrum of most Cisco routers.