Author: Chris

[root@Syslog_Trial ~]# tcpdump -i ens160 -n | grep 10.10. tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on ens160, link-type…

Here is sample configuration of Cisco multicast configuration in best practice   To enable multicast routing Cisco-Devices(config)# ip multicast-routing   To enable multicast on interfaces…

Are you using CPA to file monthly or quarterly federal TAX return? I remember I used to pay $300 per month for those TAX return…

Cisco FXS voice card is very handy solution if you already have Cisco router and DSP module on the router. It makes your router has…

Step 1. H/w Install with proper steps. 1.1 Power code Case#1 : IP phone (POE) + Single Cisco 7916 module(Power supply) : Cisco 7916 module…

IP address management is one of annoying thing need to be done by network admin. Especially, small network or decent size of lab environment. Here…

Cisco Call Manager Express(CME) or Cisco Unified Call Manager Express(CUCME) is one of popular VoIP solution in the mid-size voice of IP telephony market. This…

How to fix Cisco FXO Voice Card Disconnect issue Recently, I was working on setting up PSTN/POTS line at international office. On Cisco 2921 router,…

It is a basic guide for install and configuring T1/E1 module on Cisco Unified Call manager Express(CME). Also, it will have some troubleshooting tips and…

If you have old network design like route-on-a-stick although L3 switch was present. Basically, all Switch Virtual Interfaces(SVIs) for the VLANs are on the router….