I. host MAC and switch port binding:
Switch # config terminal
Switch (config) # int f0/1
Switch (config-if) # switchport mode access
Switch (config-if) # switchport port-security mac-address 2.16.0000.0001
2. Host IP address and switch port
IP address and MAC address relationship: IP address is based on the current IPV4 standard specified, not subject to hardware limitations easier to remember the address, length 4 bytes. The MAC address is the physical address of the network card,
Note: Relationship between the IP address and the MAC address: the IP address is specified according to the current IPv4 standard and is easy to remember without hardware restrictions. The length is 4 bytes. The MAC address is the physical address
The trilogy of illegal terminal access control: Control, check, guideJack ZhaiFirst, the issue of the proposed:intruders want to bypass the network's border measures, direct intrusion into the network inside, there are generally two ways: one is the
Ip-mac binding is a common function of many routes, gateway, mainly used to bind the IP address of LAN terminal, prevent the terminal to arbitrarily modify the IP, cause the network IP address conflict, and cause the net to break fire. First of all,
Trilogy of illegal Terminal Access Control: control, query, and guide
I. Question proposal:Intruders want to bypass network boundary measures and directly intrude into the network through two channels: first, internal hosts "actively" create new
Analysis of TCP/IP packet based on JPCAPOriginal: Zhao HuiDirectoryChapter One structure of Ethernet and TCP/IP1.1 Structure of the Ethernet1.1.1 Ethernet based on network architectureData exchange of 1.1.2 Ethernet1.1.3 Structure of Ethernet frames1
Modify the MySQL encoding format under mac terminal -- cannot find the my-default.cnf and my. cnf, cannot find mydefault. cnf
First, make sure that MySQL is correctly installed.
1-configure the environment variable path first
1.1 open the terminal
PremiseThe content described in this article is only suitable for Lenovo E49A notebook, after the content of this article, the use of Mac OS 10.9 to achieve normal working standards, the perfect degree is better.Results such as the following: video
The MAC address of the computer is fixed, but the IP address can be set and changed. If the terminal arbitrarily modifies the IP address, it may cause a lan ip address conflict and affect normal use. If an ARP (IP-MAC matching relationship) attack
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