Section 7 Flashcards
Router
A box that connects network IDs
Routing table
Address, Subnet, Gateway, Interface
Port number
Set by the type of application that you’re using
Port numbers 0 to 1023
are called well known ports
Source port number
is generated as an ephemeral port by the computer itself
Network Address Translation (NAT)
a way to map multiple private addresses inside a local network to a public IP address before transferring the information onto the internet.
Static NAT (SNAT)
all incoming addresses for one particular IP address
go to one particular device.
Small Office Home Office (SOHO)
routers ship with NAT enabled
Port Forwarding
directing traffic from the outside world to the appropriate server inside a local TCP/IP network.
Port Range Forwarding
used to forward an entire range of ports. Ex. video game
Port Triggering
dynamic form of port forwarding used when port forwarding needs to reach multiple local computers
File Transfer Protocol (FTP)
FTP: Port 20, 21
SOHO DMZ
Forwarding of ports
Places device outside of protection of router
SOHO Router
Gateway router
Enterprise Router
Cisco Router
Multicast
is a class D IP Address
allows a computer to take on a second IP address that starts with a 2.2.4
Convergence
where all router tables reflect all routes
MTU
Maximum transmission unit (MTU)
Latency
How long does it take for a route to react to whatever I have to do
RIP
Routing Information Protocol
RIP
Is a distance vector protocol that uses hop count to determine routes
RIP Maximum hop count
15
RIP1 Used only…
Classful networks
OSPF
Open Shortest Path First
OSPF is a…
Link state protocol
BGP
Border Gateway Protocol
BGP is a…
Hybrid Protocol
BGP is the Primary…
Protocol for the internet
BGP is based around the concept of…
Autonomous systems
(AS)
