Default Gateway

Configuring an IP address and Default-Gateway on a Cisco Switch

Posted 3 CommentsPosted in CCENT (ICND1), CCNA (ICND2), CCNA-Configs, Switching

The configuration of an IP address and default-gateway on a switch is slightly different from a router. Firstly a router doesn’t have a default-gateway but rather a default route. A switch on the other hand can have a default-gateway, especially if the device is in layer 2 mode. If the switch is a multi-layer switch […]

Configuring SPAN on a Cisco Switch

Posted 1 CommentPosted in BCMSN, Switching

SPAN (Switched Port Analyser) is a requirement whenever you have a system that wishes to log and monitor traffic that is passing through a switch. Since a switch only sends traffic to the machine requiring the packets, adding a sniffer to the switch would result in you only seeing traffic to your sniffer, from your […]

Configuring PPP Encapsulation

Posted Leave a commentPosted in CCNA (ICND2), WAN

Cisco routers use HDLC (High-Level Data Link Control protocol )as their default encapsulation protocol on serial lines. This works fine and there are no major problems with running HDLC however it lacks the troubleshooting commands that PPP (Point-to-Point Protocol) provides us. I learnt the value of PPP about 10 years back when I was installing […]