When its employees become distributed across many branch locations
When the network will span multiple buildings
When the number of employees exceeds the capacity of the LAN
When the enterprise decides to secure its corporate LAN
Web hosting service
Internet search engine service
Access layer switch
Distribution layer router
It replaces SONET and SDH technologies.
It enables bidirectional communications over one strand of fiber.
It provides Layer 3 support for long distance data communications.
It provides a 10 Gb/s multiplexed signal over analog copper telephone lines.
Lacks SVC support
Does not scale well to provide high speed WAN connections
Requires multiple interfaces on the edge router to support multiple VCs
Leased line connection
Site-to-site VPN over the Internet
Remote access VPN over the Internet
Identifying fault conditions for the PPP link
Providing multilink capabilities over the PPP link
Bringing the network layer protocol or protocols up and down
Enhancing security by providing callback over PPP
Negotiating options for the IP protocol
Managing authentication of the peer routers of the PPP link
The link LCP and NCP status
The queuing type on the link
The IP addresses of the link interfaces
The serial interfaces participating in the multilink
Only the link-establishment phase completed successfully.
Only the network-layer phase completed successfully.
Neither the link-establishment phase nor the network-layer phase completed successfully.
Both the link-establishment and network-layer phase completed successfully.
The PPP link will be closed down if the link quality drops below 70 percent.
The NCP will send a message to the sending device if the link usage reaches 70 percent.
The LCP establishment phase will not start until the bandwidth reaches 70 percent or more.
The PPP link will not be established if more than 30 percent of options cannot be accepted.
Power is always provided.
Less energy is consumed.
Server provisioning is faster.
Hardware does not have to be identical.
192.168.1.0/32 is subnetted, 2 subnetted C 192.168.1.1 is directly connected, Dialer1 C 192.168.1.2 is directly connected, Dialer2
S* 0.0.0.0/0 is directly connected, Dialer1
192.168.1.0/32 is subnetted, 2 subnetted C 192.168.1.1 is directly connected, Dialer
S* 0.0.0.0/0 is directly connected, Dialer1 192.168.1.0/32 is subnetted, 2 subnetted C 192.168.1.1 is directly connected, Dialer1 C 192.168.1.2 is directly connected, Dialer1
A DMVPN will use an encrypted session and does not require IPsec.
A DMVPN uses a Layer 3 protocol, NHRP, to dynamically establish tunnels.
A DMVPN will support remote peers by providing a mapping database of public IP addresses to each one.
A DMVPN uses mGRE to create multiple GRE interfaces that each support a single VPN tunnel.
A mobile user who connects to a router at a central site
A branch office that connects securely to a central site
A mobile user who connects to a SOHO site
A central site that connects to a SOHO site without encryption
They are configured in the interface configuration mode.
They filter traffic based on source IP addresses only.
They can be created with a number but not with a name.
They can be configured to filter traffic based on both source IP addresses and source ports.
Access list number between 1 and 99
Access list number between 100 and 199
Default gateway address and wildcard mask
Destination address and wildcard mask
Source address and wildcard mask
Source subnet mask and wildcard mask
Destination subnet mask and wildcard mask