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Related Flashcards
Related Topics
Cards In This Set
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What is one use of Source Network Address Translation (SNAT)?
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Translate many different source addresses to a single source address (many to one)
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What is one use of Destination Network Address Translation (DNAT)?
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Allow access to internal devices from external internet address
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Used often in routers to aggregate network routes and it makes many different networks look like a single network
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Supernetting
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PUBLIC addresses are the addresses that are routable. PRIVATE network addresses are not connected to the internet or isolated & nonroutable.
RFC 1918 defines the class ranges that are nonroutable. Class A 10.0.0.0 to 10.255.255.255 Class B 172.16.0.0 to 172.31.255.255 Class C 192.168.0.0 to 192.168.255.255 |
Public vs. Private
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Converts one IP address to another. A layer 3 conversion
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NAT - Network Address Translation
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Converts a source IP address to another IP address. Used to convert a large number of internal IP address to an external address
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SNAT - Source NAT
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Converts the destination IP address to another IP address. Used to convert externally accessible IP address to an internal address
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Destination NAT
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Allows many internal hosts to share a single external IP address
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PAT - Port Address Transalation
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Automated configuration of IP address, subnet mas and other opts. Requires a DHCP server
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DHCP - Dynamic Host Configuration Protocol
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IP address are assigned in real time from a pool. Each system is given a least and must renew at set intervals
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Dynamic DHCP
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Addresses are assigned by MAC address in the DHCP server. Quickly readdress servers from one location
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Static DHCP
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Enables a computer to automatically assign itself an IP address when there is no Dynamic Host Configuration Protocol (DHCP) server available to perform that function.
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APIPA
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Transmitting the same data to all possible destinations.
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Unicast
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Delivery of message or info to a group of destination computers simultaneously in a single transmission from the source creating copies automatically in other network elements.
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Multicast
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Refers to transmitting a packet that will be received by every device on the network
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Broadcast
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