个人中心
文章发布
退出
作者热门文章
- html - 出于某种原因，IE8 对我的 Sass 文件中继承的 html5 CSS 不友好？
- JMeter 在响应断言中使用 span 标签的问题
- html - 在 :hover and :active? 上具有不同效果的 CSS 动画
- html - 相对于居中的 html 内容固定的 CSS 重复背景？
25
4
我目前正在尝试了解如何使用 AWS CloudFormation 服务。这可能是一个非常简单的问题，但我认为到目前为止很难理解这个平台。我按照亚马逊关于如何创建基本网络服务器的教程进行操作。从最终模板开始，我想修改它以启用用户定义的 VPC IP 范围。为此，我尝试添加 VPC CIDR block 属性，并修改 PublicSubnet 设置以从 block 属性获取/24 子网，但在尝试创建堆栈时收到以下错误消息:
这是我尝试使用的模板:
{
"AWSTemplateFormatVersion": "2010-09-09",
"Description": "AWS CloudFormation Sample Template VPC_Single_Instance_In_Subnet: Sample template showing how to create a VPC and add an EC2 instance with an Elastic IP address and a security group. **WARNING** This template creates an Amazon EC2 instance. You will be billed for the AWS resources used if you create a stack from this template.",
"Parameters": {
"InstanceType": {
"Description": "WebServer EC2 instance type",
"Type": "String",
"Default": "t2.micro",
"AllowedValues": [
"t1.micro",
"t2.micro",
"t2.small",
"t2.medium"
],
"ConstraintDescription": "must be a valid EC2 instance type."
},
"KeyName": {
"Description": "Name of an existing EC2 KeyPair to enable SSH access to the instance.",
"Type": "AWS::EC2::KeyPair::KeyName",
"ConstraintDescription": "must be the name of an existing EC2 KeyPair."
},
"SSHLocation": {
"Description": " The IP address range that can be used access the web server using SSH.",
"Type": "String",
"MinLength": "9",
"MaxLength": "18",
"Default": "0.0.0.0/0",
"AllowedPattern": "(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})/(\\d{1,2})",
"ConstraintDescription": "must be a valid IP CIDR range of the form x.x.x.x/x."
}
},
"Mappings": {
"AWSInstanceType2Arch": {
"t1.micro": {"Arch": "PV64"},
"t2.micro": {"Arch": "HVM64"},
"t2.small": {"Arch": "HVM64"},
"t2.medium": {"Arch": "HVM64"}
},
"AWSRegionArch2AMI": {
"us-east-1": {
"PV64": "ami-1ccae774",
"HVM64": "ami-1ecae776",
"HVMG2": "ami-8c6b40e4"
}
}
},
"Resources": {
"VPC": {
"Type": "AWS::EC2::VPC",
"Properties": {
"EnableDnsSupport": "true",
"EnableDnsHostnames": "true",
"CidrBlock": "10.0.0.0/16"
},
"Metadata": {
"AWS::CloudFormation::Designer": {"id": "96a791f0-938b-4ebe-9f3c-b3fe2a588aee"}
}
},
"VpcCidrBlock": {
"Type": "AWS::EC2::VPCCidrBlock",
"Properties": {
"VpcId": {"Ref": "VPC"},
"CidrBlock": "10.0.0.0/16"
}
},
"PublicSubnet": {
"Type": "AWS::EC2::Subnet",
"Properties": {
"CidrBlock": { "Fn::Select" : [ "0", { "Fn::Cidr" : ["10.0.0.0/24", 1, 8 ]}]},
"VpcId": {"Ref": "VPC"}
},
"Metadata": {
"AWS::CloudFormation::Designer": {"id": "3df467ad-673c-4c48-a41c-3ac1626961e3"}
}
},
"InternetGateway": {
"Type": "AWS::EC2::InternetGateway",
"Metadata": {
"AWS::CloudFormation::Designer": {"id": "a166c4f5-7cc4-429b-b9d8-2c8c43facc63"}
}
},
"VPCGatewayAttachment": {
"Type": "AWS::EC2::VPCGatewayAttachment",
"Properties": {
"VpcId": {"Ref": "VPC"},
"InternetGatewayId": {"Ref": "InternetGateway"}
},
"Metadata": {
"AWS::CloudFormation::Designer": {"id": "1790ebeb-2e41-4293-8cc1-aaba134fd1e0"}
}
},
"PublicRouteTable": {
"Type": "AWS::EC2::RouteTable",
"Properties": {
"VpcId": {"Ref": "VPC"}
},
"Metadata": {
"AWS::CloudFormation::Designer": {"id": "175bad80-0988-4588-a919-331be705b02d"}
}
},
"PublicRoute": {
"Type": "AWS::EC2::Route",
"DependsOn": "VPCGatewayAttachment",
"Properties": {
"RouteTableId": {"Ref": "PublicRouteTable"},
"DestinationCidrBlock": "0.0.0.0/0",
"GatewayId": {"Ref": "InternetGateway"}
},
"Metadata": {
"AWS::CloudFormation::Designer": {"id": "143bbaa1-66a2-42a5-885f-e6300817103c"}
}
},
"PublicSubnetRouteTableAssociation": {
"Type": "AWS::EC2::SubnetRouteTableAssociation",
"Properties": {
"SubnetId": {"Ref": "PublicSubnet"},
"RouteTableId": {"Ref": "PublicRouteTable"}
},
"Metadata": {
"AWS::CloudFormation::Designer": {"id": "528e2b71-46e6-4e09-815a-f70630755219"}
}
},
"WebServerSecurityGroup": {
"Type": "AWS::EC2::SecurityGroup",
"Properties": {
"VpcId": {"Ref": "VPC"},
"GroupDescription": "Allow access from HTTP and SSH traffic",
"SecurityGroupIngress": [
{
"IpProtocol": "tcp",
"FromPort": "80",
"ToPort": "80",
"CidrIp": "0.0.0.0/0"
},
{
"IpProtocol": "tcp",
"FromPort": "22",
"ToPort": "22",
"CidrIp": {"Ref": "SSHLocation"}
}
]
},
"Metadata": {
"AWS::CloudFormation::Designer": {"id": "2e76192b-a4f8-48a5-92b6-abbfa8b83263"}
}
},
"WebServerInstance": {
"Type": "AWS::EC2::Instance",
"Metadata": {
"AWS::CloudFormation::Init": {
"configSets": {
"All": ["ConfigureSampleApp"]
},
"ConfigureSampleApp": {
"packages": {
"yum": {
"httpd": []
}
},
"files": {
"/var/www/html/index.html": {
"content": {
"Fn::Join": [
"\n",
["<h1>Congratulations, you have successfully launched the AWS CloudFormation sample.</h1>"]
]
},
"mode": "000644",
"owner": "root",
"group": "root"
}
},
"services": {
"sysvinit": {
"httpd": {
"enabled": "true",
"ensureRunning": "true"
}
}
}
}
},
"AWS::CloudFormation::Designer": {"id": "0f900c9e-1272-4ec2-8a42-790b074baa39"}
},
"Properties": {
"InstanceType": {"Ref": "InstanceType"},
"ImageId": {
"Fn::FindInMap": [
"AWSRegionArch2AMI",
{"Ref": "AWS::Region"},
{
"Fn::FindInMap": [
"AWSInstanceType2Arch",
{"Ref": "InstanceType"},
"Arch"
]
}
]
},
"KeyName": {"Ref": "KeyName"},
"NetworkInterfaces": [
{
"GroupSet": [
{"Ref": "WebServerSecurityGroup"}
],
"AssociatePublicIpAddress": "true",
"DeviceIndex": "0",
"DeleteOnTermination": "true",
"SubnetId": {"Ref": "PublicSubnet"}
}
],
"UserData": {
"Fn::Base64": {
"Fn::Join": [
"",
[
"#!/bin/bash -xe\n",
"yum update -y aws-cfn-bootstrap\n",
"# Install the files and packages from the metadata\n",
"/opt/aws/bin/cfn-init -v ",
" --stack ",
{"Ref": "AWS::StackName"},
" --resource WebServerInstance ",
" --configsets All ",
" --region ",
{"Ref": "AWS::Region"},
"\n",
"# Signal the status from cfn-init\n",
"/opt/aws/bin/cfn-signal -e $? ",
" --stack ",
{"Ref": "AWS::StackName"},
" --resource WebServerInstance ",
" --region ",
{"Ref": "AWS::Region"},
"\n"
]
]
}
}
},
"CreationPolicy": {
"ResourceSignal": {"Timeout": "PT5M"}
}
}
},
"Outputs": {
"URL": {
"Value": {
"Fn::Join": [
"",
[
"http://",
{
"Fn::GetAtt": [
"WebServerInstance",
"PublicIp"
]
}
]
]
},
"Description": "Newly created application URL"
},
"SubnetCIDR": {
"Value": {"Ref": "PublicSubnet"},
"Description": "Subnet for the application"
}
},
"Metadata": {
"AWS::CloudFormation::Designer": {
"a166c4f5-7cc4-429b-b9d8-2c8c43facc63": {
"size": {
"width": 60,
"height": 60
},
"position": {
"x": -40,
"y": 210
},
"z": 1,
"embeds": []
},
"96a791f0-938b-4ebe-9f3c-b3fe2a588aee": {
"size": {
"width": 320,
"height": 250
},
"position": {
"x": 70,
"y": 190
},
"z": 1,
"embeds": [
"2e76192b-a4f8-48a5-92b6-abbfa8b83263",
"175bad80-0988-4588-a919-331be705b02d"
]
},
"2e76192b-a4f8-48a5-92b6-abbfa8b83263": {
"size": {
"width": 60,
"height": 60
},
"position": {
"x": 280,
"y": 370
},
"z": 2,
"parent": "96a791f0-938b-4ebe-9f3c-b3fe2a588aee",
"embeds": []
},
"175bad80-0988-4588-a919-331be705b02d": {
"size": {
"width": 120,
"height": 120
},
"position": {
"x": 90,
"y": 230
},
"z": 2,
"parent": "96a791f0-938b-4ebe-9f3c-b3fe2a588aee",
"embeds": ["143bbaa1-66a2-42a5-885f-e6300817103c"]
},
"1790ebeb-2e41-4293-8cc1-aaba134fd1e0": {
"source": {"id": "a166c4f5-7cc4-429b-b9d8-2c8c43facc63"},
"target": {"id": "96a791f0-938b-4ebe-9f3c-b3fe2a588aee"},
"z": 1
},
"143bbaa1-66a2-42a5-885f-e6300817103c": {
"size": {
"width": 60,
"height": 60
},
"position": {
"x": 120,
"y": 260
},
"z": 3,
"parent": "175bad80-0988-4588-a919-331be705b02d",
"embeds": [],
"references": ["a166c4f5-7cc4-429b-b9d8-2c8c43facc63"],
"dependson": ["1790ebeb-2e41-4293-8cc1-aaba134fd1e0"],
"isrelatedto": ["a166c4f5-7cc4-429b-b9d8-2c8c43facc63"]
},
"3df467ad-673c-4c48-a41c-3ac1626961e3": {
"size": {
"width": 120,
"height": 120
},
"position": {
"x": 250,
"y": 230
},
"z": 0,
"embeds": ["0f900c9e-1272-4ec2-8a42-790b074baa39"]
},
"0f900c9e-1272-4ec2-8a42-790b074baa39": {
"size": {
"width": 60,
"height": 60
},
"position": {
"x": 280,
"y": 260
},
"z": 3,
"parent": "3df467ad-673c-4c48-a41c-3ac1626961e3",
"embeds": [],
"isrelatedto": ["2e76192b-a4f8-48a5-92b6-abbfa8b83263"]
},
"13e0e0da-40c9-45d0-8460-7732ed20d764": {
"source": {"id": "96a791f0-938b-4ebe-9f3c-b3fe2a588aee"},
"target": {"id": "3df467ad-673c-4c48-a41c-3ac1626961e3"},
"z": 2
},
"528e2b71-46e6-4e09-815a-f70630755219": {
"source": {"id": "175bad80-0988-4588-a919-331be705b02d"},
"target": {"id": "3df467ad-673c-4c48-a41c-3ac1626961e3"},
"z": 2
}
}
}
}
最佳答案
您不需要 AWS::EC2::VPCCidrBlock。相反，您可以将 VPCCidr 参数添加到模板中并使用它:
{
"AWSTemplateFormatVersion": "2010-09-09",
"Description": "AWS CloudFormation Sample Template VPC_Single_Instance_In_Subnet: Sample template showing how to create a VPC and add an EC2 instance with an Elastic IP address and a security group. **WARNING** This template creates an Amazon EC2 instance. You will be billed for the AWS resources used if you create a stack from this template.",
"Parameters": {
"InstanceType": {
"Description": "WebServer EC2 instance type",
"Type": "String",
"Default": "t2.micro",
"AllowedValues": [
"t1.micro",
"t2.micro",
"t2.small",
"t2.medium"
],
"ConstraintDescription": "must be a valid EC2 instance type."
},
"KeyName": {
"Description": "Name of an existing EC2 KeyPair to enable SSH access to the instance.",
"Type": "AWS::EC2::KeyPair::KeyName",
"ConstraintDescription": "must be the name of an existing EC2 KeyPair."
},
"VPCCidr": {
"Type": "String",
"Default": "10.0.0.0/16"
},
"SSHLocation": {
"Description": " The IP address range that can be used access the web server using SSH.",
"Type": "String",
"MinLength": "9",
"MaxLength": "18",
"Default": "0.0.0.0/0",
"AllowedPattern": "(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})/(\\d{1,2})",
"ConstraintDescription": "must be a valid IP CIDR range of the form x.x.x.x/x."
}
},
"Mappings": {
"AWSInstanceType2Arch": {
"t1.micro": {"Arch": "PV64"},
"t2.micro": {"Arch": "HVM64"},
"t2.small": {"Arch": "HVM64"},
"t2.medium": {"Arch": "HVM64"}
},
"AWSRegionArch2AMI": {
"us-east-1": {
"PV64": "ami-1ccae774",
"HVM64": "ami-1ecae776",
"HVMG2": "ami-8c6b40e4"
}
}
},
"Resources": {
"VPC": {
"Type": "AWS::EC2::VPC",
"Properties": {
"EnableDnsSupport": "true",
"EnableDnsHostnames": "true",
"CidrBlock": {"Ref": "VPCCidr"}
},
"Metadata": {
"AWS::CloudFormation::Designer": {"id": "96a791f0-938b-4ebe-9f3c-b3fe2a588aee"}
}
},
"PublicSubnet": {
"Type": "AWS::EC2::Subnet",
"Properties": {
"CidrBlock": { "Fn::Select" : [ "0", { "Fn::Cidr" : [{"Ref": "VPCCidr"}, 1, 8 ]}]},
"VpcId": {"Ref": "VPC"}
},
"Metadata": {
"AWS::CloudFormation::Designer": {"id": "3df467ad-673c-4c48-a41c-3ac1626961e3"}
}
},
"InternetGateway": {
"Type": "AWS::EC2::InternetGateway",
"Metadata": {
"AWS::CloudFormation::Designer": {"id": "a166c4f5-7cc4-429b-b9d8-2c8c43facc63"}
}
},
"VPCGatewayAttachment": {
"Type": "AWS::EC2::VPCGatewayAttachment",
"Properties": {
"VpcId": {"Ref": "VPC"},
"InternetGatewayId": {"Ref": "InternetGateway"}
},
"Metadata": {
"AWS::CloudFormation::Designer": {"id": "1790ebeb-2e41-4293-8cc1-aaba134fd1e0"}
}
},
"PublicRouteTable": {
"Type": "AWS::EC2::RouteTable",
"Properties": {
"VpcId": {"Ref": "VPC"}
},
"Metadata": {
"AWS::CloudFormation::Designer": {"id": "175bad80-0988-4588-a919-331be705b02d"}
}
},
"PublicRoute": {
"Type": "AWS::EC2::Route",
"DependsOn": "VPCGatewayAttachment",
"Properties": {
"RouteTableId": {"Ref": "PublicRouteTable"},
"DestinationCidrBlock": "0.0.0.0/0",
"GatewayId": {"Ref": "InternetGateway"}
},
"Metadata": {
"AWS::CloudFormation::Designer": {"id": "143bbaa1-66a2-42a5-885f-e6300817103c"}
}
},
"PublicSubnetRouteTableAssociation": {
"Type": "AWS::EC2::SubnetRouteTableAssociation",
"Properties": {
"SubnetId": {"Ref": "PublicSubnet"},
"RouteTableId": {"Ref": "PublicRouteTable"}
},
"Metadata": {
"AWS::CloudFormation::Designer": {"id": "528e2b71-46e6-4e09-815a-f70630755219"}
}
},
"WebServerSecurityGroup": {
"Type": "AWS::EC2::SecurityGroup",
"Properties": {
"VpcId": {"Ref": "VPC"},
"GroupDescription": "Allow access from HTTP and SSH traffic",
"SecurityGroupIngress": [
{
"IpProtocol": "tcp",
"FromPort": "80",
"ToPort": "80",
"CidrIp": "0.0.0.0/0"
},
{
"IpProtocol": "tcp",
"FromPort": "22",
"ToPort": "22",
"CidrIp": {"Ref": "SSHLocation"}
}
]
},
"Metadata": {
"AWS::CloudFormation::Designer": {"id": "2e76192b-a4f8-48a5-92b6-abbfa8b83263"}
}
},
"WebServerInstance": {
"Type": "AWS::EC2::Instance",
"Metadata": {
"AWS::CloudFormation::Init": {
"configSets": {
"All": ["ConfigureSampleApp"]
},
"ConfigureSampleApp": {
"packages": {
"yum": {
"httpd": []
}
},
"files": {
"/var/www/html/index.html": {
"content": {
"Fn::Join": [
"\n",
["<h1>Congratulations, you have successfully launched the AWS CloudFormation sample.</h1>"]
]
},
"mode": "000644",
"owner": "root",
"group": "root"
}
},
"services": {
"sysvinit": {
"httpd": {
"enabled": "true",
"ensureRunning": "true"
}
}
}
}
},
"AWS::CloudFormation::Designer": {"id": "0f900c9e-1272-4ec2-8a42-790b074baa39"}
},
"Properties": {
"InstanceType": {"Ref": "InstanceType"},
"ImageId": {
"Fn::FindInMap": [
"AWSRegionArch2AMI",
{"Ref": "AWS::Region"},
{
"Fn::FindInMap": [
"AWSInstanceType2Arch",
{"Ref": "InstanceType"},
"Arch"
]
}
]
},
"KeyName": {"Ref": "KeyName"},
"NetworkInterfaces": [
{
"GroupSet": [
{"Ref": "WebServerSecurityGroup"}
],
"AssociatePublicIpAddress": "true",
"DeviceIndex": "0",
"DeleteOnTermination": "true",
"SubnetId": {"Ref": "PublicSubnet"}
}
],
"UserData": {
"Fn::Base64": {
"Fn::Join": [
"",
[
"#!/bin/bash -xe\n",
"yum update -y aws-cfn-bootstrap\n",
"# Install the files and packages from the metadata\n",
"/opt/aws/bin/cfn-init -v ",
" --stack ",
{"Ref": "AWS::StackName"},
" --resource WebServerInstance ",
" --configsets All ",
" --region ",
{"Ref": "AWS::Region"},
"\n",
"# Signal the status from cfn-init\n",
"/opt/aws/bin/cfn-signal -e $? ",
" --stack ",
{"Ref": "AWS::StackName"},
" --resource WebServerInstance ",
" --region ",
{"Ref": "AWS::Region"},
"\n"
]
]
}
}
},
"CreationPolicy": {
"ResourceSignal": {"Timeout": "PT5M"}
}
}
},
"Outputs": {
"URL": {
"Value": {
"Fn::Join": [
"",
[
"http://",
{
"Fn::GetAtt": [
"WebServerInstance",
"PublicIp"
]
}
]
]
},
"Description": "Newly created application URL"
},
"SubnetCIDR": {
"Value": {"Ref": "PublicSubnet"},
"Description": "Subnet for the application"
}
},
"Metadata": {
"AWS::CloudFormation::Designer": {
"a166c4f5-7cc4-429b-b9d8-2c8c43facc63": {
"size": {
"width": 60,
"height": 60
},
"position": {
"x": -40,
"y": 210
},
"z": 1,
"embeds": []
},
"96a791f0-938b-4ebe-9f3c-b3fe2a588aee": {
"size": {
"width": 320,
"height": 250
},
"position": {
"x": 70,
"y": 190
},
"z": 1,
"embeds": [
"2e76192b-a4f8-48a5-92b6-abbfa8b83263",
"175bad80-0988-4588-a919-331be705b02d"
]
},
"2e76192b-a4f8-48a5-92b6-abbfa8b83263": {
"size": {
"width": 60,
"height": 60
},
"position": {
"x": 280,
"y": 370
},
"z": 2,
"parent": "96a791f0-938b-4ebe-9f3c-b3fe2a588aee",
"embeds": []
},
"175bad80-0988-4588-a919-331be705b02d": {
"size": {
"width": 120,
"height": 120
},
"position": {
"x": 90,
"y": 230
},
"z": 2,
"parent": "96a791f0-938b-4ebe-9f3c-b3fe2a588aee",
"embeds": ["143bbaa1-66a2-42a5-885f-e6300817103c"]
},
"1790ebeb-2e41-4293-8cc1-aaba134fd1e0": {
"source": {"id": "a166c4f5-7cc4-429b-b9d8-2c8c43facc63"},
"target": {"id": "96a791f0-938b-4ebe-9f3c-b3fe2a588aee"},
"z": 1
},
"143bbaa1-66a2-42a5-885f-e6300817103c": {
"size": {
"width": 60,
"height": 60
},
"position": {
"x": 120,
"y": 260
},
"z": 3,
"parent": "175bad80-0988-4588-a919-331be705b02d",
"embeds": [],
"references": ["a166c4f5-7cc4-429b-b9d8-2c8c43facc63"],
"dependson": ["1790ebeb-2e41-4293-8cc1-aaba134fd1e0"],
"isrelatedto": ["a166c4f5-7cc4-429b-b9d8-2c8c43facc63"]
},
"3df467ad-673c-4c48-a41c-3ac1626961e3": {
"size": {
"width": 120,
"height": 120
},
"position": {
"x": 250,
"y": 230
},
"z": 0,
"embeds": ["0f900c9e-1272-4ec2-8a42-790b074baa39"]
},
"0f900c9e-1272-4ec2-8a42-790b074baa39": {
"size": {
"width": 60,
"height": 60
},
"position": {
"x": 280,
"y": 260
},
"z": 3,
"parent": "3df467ad-673c-4c48-a41c-3ac1626961e3",
"embeds": [],
"isrelatedto": ["2e76192b-a4f8-48a5-92b6-abbfa8b83263"]
},
"13e0e0da-40c9-45d0-8460-7732ed20d764": {
"source": {"id": "96a791f0-938b-4ebe-9f3c-b3fe2a588aee"},
"target": {"id": "3df467ad-673c-4c48-a41c-3ac1626961e3"},
"z": 2
},
"528e2b71-46e6-4e09-815a-f70630755219": {
"source": {"id": "175bad80-0988-4588-a919-331be705b02d"},
"target": {"id": "3df467ad-673c-4c48-a41c-3ac1626961e3"},
"z": 2
}
}
}
}
关于amazon-web-services - AWS Cloudformation CIDR block 冲突，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/70399646/
25
4
0
我有一个 VPC，假设它的 CIDR block 是 10.0.0.0/16。我在那个 VPC 中有几个随机子网。他们的 CIDR 可能类似于 10.0.128.0/19、10.0.32.0/19、1
当我们使用kubeadm设置k8s集群时，有两个选项需要配置: --pod-network-cidr --service-cidr(默认“10.96.0.0/12”) 问题是: 如果我将 10.244
我有 2 个数据框。 One(df1) 具有 CIDR 和一列，该列始终为 1 以丰富第二个数据帧。另一个数据帧(df2)有一个 ip 列表。我想可能通过 df1 中的 CIDR 迭代 IP，并标记
我有一个包含两个 cidr 数组的表。一个包含主机 ip 地址，第二个包含网络地址。 我需要编写一个函数来执行这样的查询: SELECT * from sometable WHERE ip_addr
我在 AWS 上创建了一个 VPC(公共(public)子网和私有(private)子网)，IPV4 CIDR block 为 10.0.0.0/26 (即它可以有 2^6 = 64 个 IP 地址以
我正在努力在AWS上创建一个子网。这是我一直纠结的问题：创建一个新子网。将其添加到与第一个子网相同的vPC中，并使用相邻的CIDR块。您使用了什么CIDR块？。但是，我最初的VPC使用的是10.0.1
想知道这是怎么重叠的，好像是后来才出现的。 CIDR block 10.0.96.32/18 overlaps with pre-existing CIDR block 10.0.96.0/28 fr
我有一个问题问以下问题: Suppose a router has the following CIDR entries in its routing table: Net/Prefix Next Ho
我正在编写一个程序，我需要遍历从给定 cidr 的用户派生的地址列表(例如 75.24.64.0/24 )。 我看了一些code ，但这似乎过于复杂。 最后我决定使用一个看起来像这样的结构: stru
我了解 CIDR 的一般概念以及前缀和后缀位的工作原理，并且我大致了解您可以取一个地址说: 73.132.68.12/24 有 24 个前缀和 8 个后缀位。与此对应的网络地址将是: 73.132.6
为了获得对应于 IP 地址/网络掩码的值“24”，我有这段工作代码: - set_fact: ip: "{{ ansible_default_ipv4.address }}/{{ansible
我读到 10.240.0.0/24 最多可以托管 254 个 IP 地址。怎么样？ 我如何直观地理解 /24 在这里做什么来帮助提供 254 个唯一的 ip 地址？ 最佳答案 TL;博士; 计算主机数
我想制作一个 CIDR 范围列表，代表我指定的 CIDR 范围之外的地址。 作为一个简化的例子: 如果我的 IP 范围从 8.8.8.8 到 8.8.8.10，我将能够用 CIDR 范围 8.8.8.
给定一个网络定义，如 192.168.1.0/24 ，我想转换 /24 CIDR 到四位网络掩码，在本例中 255.255.255.0 . 不应使用额外的 gem 。 最佳答案 这里的实际方法非常简单
例子: 我有这个网络掩码:255.255.255.0 在 bash 中，是否有一个命令或一个简单的脚本来将我的网络掩码转换为符号 /24？ 最佳答案 函数使用 subnetcalc : IPprefi
例如，有人可以准确解释 CIDR 块的工作原理以及它如何转换为 0.0.0.0/32 吗？请使用外行的术语，或者甚至是与网络无关的类比。似乎找不到适合我的解释。谢谢!! 最佳答案 无类别域间路由 (C
我有一个 Azure 问题。我在 Azure 云服务中使用 terraform。我尝试在那里启动 2 个 AKS 集群。但我总是收到一个错误，说我的 CIDR 设置错误。 我在集群一中使用: reso
我有以下内容:- 开始范围=“10.40.0.0/16” end_range =“10.100.0.0/16” 我必须编写一个逻辑来迭代从start到end的所有可能范围(具有相同的子网掩码/16)。
我正在寻找一种使用内置 cidr 类型从存储在 postgresql 中的 cidr block 获取直接子网络的方法。 示例数据库 CREATE TABLE nets ( id serial
我有一个 Net 表，其中是网络列表 -- 表:净值 CREATE TABLE net ( id serial NOT NULL, cidr cidr, description text,
我是一名优秀的程序员,十分优秀！