The Network Layer
This is the TCP/IP layer number for the Network Layer.
Layer 3
Address Resolution Protocol resolves these two addresses.
MAC address and IP address
The internet is partitioned into 50,000+ of these separate networks.
Autonomous Systems
Intra-Domain Routing uses this type of routing protocol.
Open Shortest Path First (OSPF)
Inter-domain routing uses this type of routing protocol.
Border Gateway Protocol (BGP).
This type of address is known as a software address.
IP address
This is the destination MAC address for an ARP Request.
Broadcast MAC address: FF:FF:FF:FF:FF:FF
Routers build their routing tables in this order.
Largest mask first.
DAILY DOUBLE!!!
Intra-Domain routing assigns weights between routers based on these 3 factors.
Distance, cost and speed.
Inter-domain routing protocol follows these steps to find the "good enough" path.
1. Finds all possible paths.
2. Judges path against local AS policy.
3. Choose the path with the least amount of hops.
The number of IP addresses available for hosts in a /28 network.
14 IP addresses.
DAILY DOUBLE!!!
This is the "Type" code for an ARP message.
0806
A router will send a packet to another router only for this reason.
The packet is destined for a network that the router is not currently a part of.
Intra-Domain routing protocol begins by a router first transmitting this packet.
"Hello" packet
This is the name of the cyber attack at the inter-domain routing level.
Routed Wide-area man-in-the-middle attack.
10.1.1.1 is an example of this kind of special IP address.
Private IP address
This is the "Operation" code for an ARP reply.
0x0002
If a destination IP address is destined for a network not on a routers Autonomous System, the router will send it to this route/router.
Default route/router
These are two defenses against an intra-domain level Man-in-the-middle attack.
Passwords and Passive Interface
These are three defenses against an inter-domain level Man-in-the-middle attack.
Filtering, Internet Routing Registries (IRRs), and Resource Public Key Infrastructure (RPKI).
This is the broadcast address for a network ID of 10.1.1.16 /30
10.1.1.19
An ARP Spoofing attack matches these two addresses in an ARP Reply
Attacker's MAC address and Victim's IP Address.
A host can use this type of delivery if a packet is destined for another host on it's network.
Once an Intra-domain router assigns weights on the linkage between neighbors, it sends this type of packet to inform the entire Autonomous System of the neighbors and assigned weights.
Link State Packet
These networks are safe in an inter-domain man-in-the-middle attack with a back path.
Autonomous systems included in the back path.