Aws vpc, Subnet, CIDR, awsvpccidr
What is CIDR?
CIDR is short for Classless Inter-Domain Routing. Chinese is Classless Inter-Domain Routing. It is a method for creating additional addresses on the Internet. These addresses are provided to service providers (ISPs ),
Then, the ISP assigns the service to the customer.
planning of this LAN will have 500 hosts, so requires 500 IP addresses, 500 IP addresses need this address is a Class B address, this class B address format is as follows192.168.0.0/255.255.0.0/11000000.10101000.00000000.00000000This class B address has 256*256=65536 host address, but only requires 500 host address, resulting in a waste of IP address, next to do the route aggregation, only 500 host address, so need to the latter 9 is the host addressThe latter 9-bit is the host address means th
Aws vpc, Subnet, and CIDR
What is CIDR?
CIDR is short for Classless Inter-Domain Routing. Chinese is Classless Inter-Domain Routing. It is a method for creating additional addresses on the Internet. These addresses are provided to service providers (ISPs ),
Then, the ISP assigns the service to the customer.
Welcome to the second lecture on this network. This time, we will learn about subnets and CIDR (classless Inter-Domain Routing. We hope to learn this knowledge more easily than some books provide.Let's first figure out one thing: there is no "category" in the subnet. In the past, networks were divided into Class A, Class B, and class C. These networks can only be divided into equal parts. Therefore, we have
We will learn about subnets and CIDR (classless Inter-Domain Routing. We hope to learn this knowledge more easily than some books provide.Let's first figure out one thing: there is no "category" in the subnet. In the past, networks were divided into Class A, Class B, and class C. These networks can only be divided into equal parts. Therefore, we have introduced a variable length
: host-id, which indicates the host (or vro)IP Address: :={ 3. Dividing subnets3.1 A Bit(1) Security(2) control broadcast storms(3) Ease of ManagementFormat 3.2Several bits are borrowed from the host number as the subnet number subnet-id, and the host number host-id reduces several BITs accordingly.IP Address: :{3.3 Subnet MaskSub Net Mask: Find the
Subnet MaskCalculator-Subnet Mask Calculator
Http://bbs.szwblm.com/dv_rss.asp? S = XHTML boardid = 15 id = 25017 page = 6
The subnet mask (subnet mask) is also called the network mask, address mask, and subnetwork mask, it is used to indicate which bits of an IP ad
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