Route selection by host reachability with Cisco SLA
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.
Category Cisco router
Cisco Unity Unified Messages Do Not Work in Blackberry or Windows Mobile
By default, Cisco Unity Unified messages don’t work in Blackberry or windows mobile devices. Here’s how to make it work.
Category Cisco call manager
Callmanager Express transfer direct to Unity express voicemail
Transfer a caller on a Cisco CME (CallManager Express) to a voicemail box on a CUE (Cisco Unity Express) system.
Category Cisco call manager
PPTP on Cisco ASA or PIX 6.3 or later code
Category Cisco firewall
Cisco IOS DST Daylight Savings Time Workaround
Daylights Savings Time workaround for Cisco IOS devices. Of course, updating the IOS to a DST-corrected version will eliminate the need for this fix, but…
Category Cisco router
Cisco HSRP (like VRRP) – Redundant gateway router configuration
You’ve got two Cisco routers, and two links to a remote site. How do you make your hosts use the backup when needed? One method is HSRP.
Category Cisco router
How to (more) safely run debugs on Cisco routers
Running debug commands can bring a busy router to a crawl. Not sending the output to the console can help. This tech-recipe describes turning off console debugging output and techniques for viewing debug information in a router-friendly way.
Category Cisco router
Updates for IP Telephony (Cisco CallManager, CallManager Express)
A couple of new commands to make life easier with IP Telephony using Cisco CallManager and CallManager Express.
Category Cisco call manager
Cisco Switch: 802.1q Trunk to Router (a.k.a. Router-on-a-Stick)
You can connect a Cisco switch and router via 802.1q trunking. This configuration is known as a router-on-a-stick.
Category Cisco switch
Optimize Cisco CallManager by Using IP address, not Servername
In system>server, the default name for each server is its hostname. These names will be passed along to the phones, requiring a DNS lookup before a phone can contact CallManager.
Category Cisco call manager
Configure a Cisco Router as an NTP Server
An NTP server can provide synchronized dates and times for devices in a network. Since a router cannot be a Stratum 1 device (cannot connect to a Stratum 0 device such as a GPS clock), a router is not an accurate source of time information. If this is not important to you, then using a […]
Category Cisco router
Configure Cisco Router to Set Time from NTP Server
Using NTP to synchronize the date and time of multiple devices makes sense even in a small network. When performing forensic analyses or troubleshooting connection problems, having consistent logging timestamps from multiple devices can save time and simplify the task.
Category Cisco router