In the continuing series of CCNP notes, I am documenting my Cisco Certified Networking Professional (CCNP) studies and sharing my notes along the way. I am using the Official CCNP Route 642-902 exam guide from Cisco, available for purchase here.
This post covers notes from Chapter 19 regarding Branch Office Networking.
- A floating static route is when a static route is configured with an administrative distance higher than the default of 1, causing the router to consider other routes such as those learned from the IGP as better.
- DSL
- DSL uses ATM for data link transport and PPP for authentication
- Configuration steps
- The configuration creates a dialer interface
- The layer-3 and PPP configuration for DSL are added to the dialer interface
- The ATM is applied to the physical ATM interface
- The ATM interface is linked to the dialer interface
- All IP traffic is routed out the dialer interface, which triggers encapsulation
- NAT
interface fastethernet 0/0 ip address 10.99.1.9 255.255.255.0 ip nat inside interface dialer 2 ip nat outside ip nat inside source list local-lan interface dialer2 overload ip access-list extended local-lan permit ip 10.99.1.0 0.0.0.255 any
- DHCP
ip dhcp pool fred network 10.99.1.0 255.255.255.0 default-router 10.99.1.9 ip dhcp exclude-address 10.99.1.9 dns-server 10.2.2.2 128.107.2.1
- VPN Configuration

