What three blocks of addresses are defined by RFC 1918 for private network use? (Choose three.) 10.0.0.0/8 172.16.0.0/12 192.168.0.0/16 100.64.0.0/14 169.254.0.0/16 239.0.0.0/8
Full Answer
How many blocks of IPv4 address does the RFC 1918 define?
(Choose three.) Explanation: RFC 1918, Address Allocation for Private Internets, defines three blocks of IPv4 address for private networks that should not be routable on the public Internet.
What is address allocation 1918 (RFC 1918)?
RFC 1918 Address Allocation for Private Internets February 1996 Moving a host from private to public or vice versa involves a change of IP address, changes to the appropriate DNS entries, and changes to configuration files on other hosts that reference the host by IP address.
What are the IPv4 address ranges reserved for private networks?
The following IPv4 address ranges are reserved for private networks (Example - a Local Area Network (LAN) inside a company, a Local Area Network (LAN) inside organization or a home network). • In Class A, 10.0.0.0/8 prefix range.
Why are private addresses not allowed on inter-enterprise links?
Because private addresses have no global meaning, routing information about private networks shall not be propagated on inter-enterprise links, and packets with private source or destination addresses should not be forwarded across such links.
What are three blocks of addresses are defined by RFC 1918 for private network use?
0.0/8Answers Explanation & Hints:RFC 1918, Address Allocation for Private Internets, defines three blocks of IPv4 address for privatnetworks that should not be routable on the public Internet. 10.0. 0.0/8172.16. 0.0/12192.168. 0.0/168.
What are the blocks of addresses the are reserved for private use?
Private Address Space The Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of the IP address space for private internets: 10.0. 0.0 - 10.255. 255.255 (10.0.
What are two advantages of private RFC 1918 addressing?
Along with NAT (network address tunneling), RFC 1918 facilitates expansion of the usable number of IP addresses available under IPV4, as a stopgap solution to prevent the exhaustion of public IPs available before the adoption of IPV6.
What RFC 1918 addresses?
An RFC1918 address is an IP address that is assigned by an enterprise organization to an internal host. These IP addresses are used in private networks, which are not available, or reachable, from the Internet. In fact, one of the basic requirements of the Internet is that each host has a unique IP address.
Which three IP addresses are considered private addresses?
Private Address RangesClass 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.
How many RFC 1918 addresses are there?
Private IPv4 addressesRFC 1918 nameIP address rangeNumber of addresses24-bit block10.0.0.0 – 10.255.255.2551677721620-bit block172.16.0.0 – 172.31.255.255104857616-bit block192.168.0.0 – 192.168.255.25565536
In which three ways do organizations benefit from using private IP addresses choose three?
In which three ways do organizations benefit from using private IP addresses? (Choose three.) -They gain more network design flexibility with a large address range. -They prevent Internet address clashes when obtaining only a small range of Internet Corporation for Assigned Names and Numbers (ICANN) assigned addresses.
What is an RFC in networking?
RFC (stands for Request For Comments) is a document that describes the standards, protocols, and technologies of the Internet and TCP/IP. Since 1969, about 2400 Requests for Comments (RFCs) have been published on various networking protocols, procedures, applications, and concepts.
Why is it important to configure separate physical media for public and private subnets?
In locations where such changes can be foreseen (machine rooms, etc.), it is advisable to configure separate physical media for public and private subnets to facilitate such changes. In order to avoid major network disruptions, it is advisable to group hosts with similar connectivity needs on their own subnets.
What is a router rejecting?
Routers in networks not using private address space, especially those of Internet service providers, are expected to be configured to reject (filter out) routing information about private networks. If such a router receives such information the rejection shall not be treated as a routing protocol error.
Can private IP hosts access external services?
While not having external (outside of the enterprise) IP connectivity private hosts can still have access to external services via mediating gateways (e.g., application layer gateways). All other hosts will be public and will use globally unique address space assigned by an Internet Registry.
Can two sites share a private address space?
It is possible for two sites, who both coordinate their private address space, to communicate with each other over a public network. To do so they must use some method of encapsulation at their borders to a public network, thus keeping their private addresses private.
Can a private host have IP?
However, they cannot have IP connectivity to any host outside of the enterprise.
