Cisco IOS Technologies

Cisco CCNA / CCNP Certification Exam Tutorial: Configuring PPP Callback

You may run into situations where a router in a remote location needs to dial in to a central router, but the toll charges are much higher if the remote router makes the call. This scenario is perfect for PPP Callback, where the callback client places a call to a callback server, authentication takes place, […]

Cisco IOS Technologies

Cisco CCNA / CCNP Certification Exam Tutorial: ISDN And Multilink PPP

ISDN is a huge topic on both your Cisco CCNA and CCNP exams. While many ISDN topics seem straightforward, it’s the details that make the difference in the exam room and working with ISDN in production networks. Configuring and troubleshooting multilink PPP is just one of the skills you’ll need to pass both of these […]

Cisco IOS Technologies

CCNA / CCNP Home Lab Tutorial: The VLAN.DAT File

CCNA and CCNP candidates who have their own Cisco home labs often email me about an odd situation that occurs when they erase a switch’s configuration. Their startup configuration is gone, as they expect, but the VLAN and VTP information is still there! Sounds strange, doesn’t it? Let’s look at an example. On SW1, we […]

Cisco IOS Technologies

Cisco CCNA / CCNP Certification Exam Tutorial: Floating Static Routes

To pass the Cisco CCNA and CCNP certification exams, as well as becoming a world-class networker, you’ve got to know how and when to use floating static routes. And if you’re wondering what makes them “float” — read on! In this example, R1 and R2 are running OSPF over a Frame Relay network, /24. […]

Cisco IOS Technologies Exam

Cisco 300-101 Exam (2018 and 2019)

300-101 (CCNP Implementing Cisco IP Routing (ROUTE v2.0)), Get 100% Real Exam Questions, Accurate & Verified Answers As Seen in the Real Exam!, Instant Download! Product Questions: 768 Version: 34.0 Question: 1 Refer to the exhibit.  Based on this FIB table,  which statement  is correct?   There is no default gateway. The IP address of the router on FastEthernet is The gateway of […]