subnet mask for single ip

In linux, a single NIC is bound to multiple IP addresses. note: a single NIC is bound to two IP addresses, including China Telecom and China Unicom. The purpose is to ensure that China Unicom works normally when China Telecom fails. System IP address

How to add a single IP address in CentOS and add multiple IP addresses in batches 1. Add a single IP Address:Create a file ifcfg-eth0 in/etc/sysconfig/network-scripts/: *, * is the number, and multiple IP addresses increase in tu

multiple sites in this way, you must register the name of the text form with InterNIC. The specific steps are described below. (Before this we have set up an IP address: 192.168.0.100, subnet mask is: 255.255.255.0, and DNS, etc. has been configured well). First, enter "My Computer/Control Panel/Network and dial-up connection/local Area Connection" in Windows200

One, add a single IP address:In/etc/sysconfig/network-s/, the new file ifcfg-eth0:*,* is a numeric ordinal, and multiple IPs are incrementedTake 0 As an example to establish a file ifcfg-eth0:0cd/etc/sysconfig/network-s/VI ifcfg-eth0:0Input content format:device=eth0:0Type=ethernetOnboot=yesBootproto=staticIpaddr= to add the IP address of the bindingnetmask=

In linux, a single Nic is bound to multiple IP addresses. Note: A single Nic is bound to two IP addresses, including China Telecom and China Unicom. The purpose is to ensure that China Unicom works normally when China Telecom fails. System IP address

. bridge all these ports brctl addbf br0brctl addif br0 eth0brctl addif br0 eth1brctl addif br0 wlan02. configure an IP address for br0 for WIFI (the dhcp pool and DNS configuration process are omitted) to limit the number of connected devices: ifconfig br0 172.20.1.1/283. option 1: Add a Secondary IP address to br0 to successfully Add the default route ifconfig br0: 0 192.168.10.255/23. Note that the above

does not have to worry about an IP address that has the same name as the Internet, because a superior gateway will view it as illegal and refuse to give service. 3lian.com 4. Modify/etc/inet/netmasks file If the router is connected to a subnet, you should also modify the/etc/inet/netmasks and fill in the local network number (such as 129.9.0.0) and the mask

/sysconfig/network-scripts/directoryExamples of the content are:Device= "eth0:0″ipaddr=" 192.168.0.2″broadcast= "192.168.0.255″netmask=" 255.255.255.0″onboot= "yes" where devices are the name of the device, ipaddr the IP address for this device, broadcast is the broadcast address---can omit netmask as the subnet mask, onboot indicates that it starts automatically

Description Single NIC binding two IP addresses, telecommunications and Unicom, the purpose: to be used when the telecom out of fault unicom normal use. System IP Address Subnet mask Gateway CentOS 6.3_64bit eth0:116.18.176.19 25

| BOOTP protocol | DHCP protocol)ipaddr=172.188.174.20//Modify IP Addressnetmask=255.255.255.0//Subnet maskgateway=192.168.1.1//Gatewaybroadcast= ' 192.168.1.255 '//broadcast addressHwaddr= "00:0c:29:c9:6d:11"//mac addressNm_controlled= "Yes"onboot= "yes"//boot Activation: WqIf you need to bind more than one IP address, simply add the file name and the eth0:x in

Configure dual-IP for Ubuntu Sudo Vim/etc/Network/interfaces open the IP configuration file 1 auto lo 2 iface lo inet loopback 3 auto eth0 4 iface eth0 inet static 5 #pre-up ifconfig eth0 hw ether xx:xx:xx:xx:xx:xx 6 address 210.47.248.180 7 netmask 255.255.255.0 8 gateway 210.47.248.254 9 nameserver 8.8.8.810 auto eth0:011 iface eth0:0 inet static12 address 192.168.3.4013 netmask 255.255.255.0 Pre-up ifc

eth1Brctl addif br0 wlan02. Configure an IP address for br0 for WiFi (the DHCP pool and DNS configuration process are omitted)The maximum number of connected devices is as follows:Ifconfig br0 172.20.1.1/283. Option 1: Add a secondary IP address to br0 to add the default routeIfconfig br0: 0 192.168.10.255/23Note that the above prefix 23 is worth noting that the mask