概念

地址解析协议，即ARP（Address Resolution Protocol），是根据IP地址获取物理地址的一个TCP/IP协议。主机发送信息时将包含目标IP地址的ARP请求广播到局域网络上的所有主机，并接收返回消息，以此确定目标的物理地址。

命令详解

  1. C:\Users\sunzhengbo>arp
  3. Displays and modifies the IP-to-Physical address translation tables used by
  4. address resolution protocol (ARP).
  6. ARP -s inet_addr eth_addr [if_addr]
  7. ARP -d inet_addr [if_addr]
  8. ARP -a [inet_addr] [-N if_addr] [-v]
  10.   -a            Displays current ARP entries by interrogating the current
  11.                 protocol data.  If inet_addr is specified, the IP and Physical
  12.                 addresses for only the specified computer are displayed.  If
  13.                 more than one network interface uses ARP, entries for each ARP
  14.                 table are displayed.
  15.   -g            Same as -a.
  16.   -v            Displays current ARP entries in verbose mode.  All invalid
  17.                 entries and entries on the loop-back interface will be shown.
  18.   inet_addr     Specifies an internet address.
  19.   -N if_addr    Displays the ARP entries for the network interface specified
  20.                 by if_addr.
  21.   -d            Deletes the host specified by inet_addr. inet_addr may be
  22.                 wildcarded with * to delete all hosts.
  23.   -s            Adds the host and associates the Internet address inet_addr
  24.                 with the Physical address eth_addr.  The Physical address is
  25.                 given as 6 hexadecimal bytes separated by hyphens. The entry
  26.                 is permanent.
  27.   eth_addr      Specifies a physical address.
  28.   if_addr       If present, this specifies the Internet address of the
  29.                 interface whose address translation table should be modified.
  30.                 If not present, the first applicable interface will be used.
  31. Example:
  32.   > arp -s 157.55.85.212   00-aa-00-62-c6-09  .... Adds a static entry.
  33.   > arp -a                                    .... Displays the arp table.

显示arp树

  1. C:\Users\sunzhengbo>arp -a
  3. Interface: 192.168.9.188 --- 0x4
  4.   Internet Address      Physical Address      Type
  5.   192.168.9.1           34-96-72-02-48-ae     dynamic
  6.   192.168.9.147         a4-97-b1-cd-05-fb     dynamic
  7.   192.168.9.162         7c-11-cb-54-c6-42     dynamic
  8.   192.168.9.179         00-11-32-6e-3a-7c     dynamic
  9.   192.168.9.199         be-aa-a7-52-18-ab     dynamic
  10.   192.168.9.254         1c-7d-22-1c-73-b6     dynamic
  11.   192.168.9.255         ff-ff-ff-ff-ff-ff     static
  12.   224.0.0.2             01-00-5e-00-00-02     static
  13.   224.0.0.22            01-00-5e-00-00-16     static
  14.   224.0.0.251           01-00-5e-00-00-fb     static
  15.   224.0.0.252           01-00-5e-00-00-fc     static
  16.   239.11.20.1           01-00-5e-0b-14-01     static
  17.   239.255.255.250       01-00-5e-7f-ff-fa     static
  18.   255.255.255.255       ff-ff-ff-ff-ff-ff     static
  20. Interface: 192.168.217.1 --- 0xa
  21.   Internet Address      Physical Address      Type
  22.   192.168.217.254       00-50-56-f3-48-6f     dynamic
  23.   192.168.217.255       ff-ff-ff-ff-ff-ff     static
  24.   224.0.0.2             01-00-5e-00-00-02     static
  25.   224.0.0.22            01-00-5e-00-00-16     static
  26.   224.0.0.251           01-00-5e-00-00-fb     static
  27.   224.0.0.252           01-00-5e-00-00-fc     static
  28.   239.11.20.1           01-00-5e-0b-14-01     static
  29.   239.255.255.250       01-00-5e-7f-ff-fa     static
  30.   255.255.255.255       ff-ff-ff-ff-ff-ff     static
  32. Interface: 192.168.36.1 --- 0x11
  33.   Internet Address      Physical Address      Type
  34.   192.168.36.254        00-50-56-f5-77-5c     dynamic
  35.   192.168.36.255        ff-ff-ff-ff-ff-ff     static
  36.   224.0.0.2             01-00-5e-00-00-02     static
  37.   224.0.0.22            01-00-5e-00-00-16     static
  38.   224.0.0.251           01-00-5e-00-00-fb     static
  39.   224.0.0.252           01-00-5e-00-00-fc     static
  40.   239.11.20.1           01-00-5e-0b-14-01     static
  41.   239.255.255.250       01-00-5e-7f-ff-fa     static
  42.   255.255.255.255       ff-ff-ff-ff-ff-ff     static
  44. Interface: 192.168.0.112 --- 0x15
  45.   Internet Address      Physical Address      Type
  46.   192.168.0.1           24-69-68-fd-61-7f     dynamic
  47.   192.168.0.101         4e-80-73-0b-6e-2d     dynamic
  48.   192.168.0.107         34-96-72-02-48-b0     dynamic
  49.   192.168.0.109         90-2b-34-d2-e6-a4     dynamic
  50.   192.168.0.110         94-de-80-aa-84-ab     dynamic
  51.   192.168.0.113         f8-ff-c2-34-4b-4b     dynamic
  52.   192.168.0.115         2c-56-dc-74-8d-a8     dynamic
  53.   192.168.0.116         00-d8-61-b3-18-1e     dynamic
  54.   192.168.0.119         d8-12-65-77-7b-61     dynamic
  55.   192.168.0.120         6c-4b-90-25-8e-ab     dynamic
  56.   192.168.0.255         ff-ff-ff-ff-ff-ff     static
  57.   224.0.0.2             01-00-5e-00-00-02     static
  58.   224.0.0.22            01-00-5e-00-00-16     static
  59.   224.0.0.251           01-00-5e-00-00-fb     static
  60.   224.0.0.252           01-00-5e-00-00-fc     static
  61.   239.11.20.1           01-00-5e-0b-14-01     static
  62.   239.255.255.250       01-00-5e-7f-ff-fa     static

显示指定网段的arp树

  1. C:\Users\sunzhengbo>arp -a | findstr "192.168.0."
  2. Interface: 192.168.0.112 --- 0x15
  3.   192.168.0.1           24-69-68-fd-61-7f     dynamic
  4.   192.168.0.101         4e-80-73-0b-6e-2d     dynamic
  5.   192.168.0.107         34-96-72-02-48-b0     dynamic
  6.   192.168.0.109         90-2b-34-d2-e6-a4     dynamic
  7.   192.168.0.110         94-de-80-aa-84-ab     dynamic
  8.   192.168.0.113         f8-ff-c2-34-4b-4b     dynamic
  9.   192.168.0.115         2c-56-dc-74-8d-a8     dynamic
  10.   192.168.0.116         00-d8-61-b3-18-1e     dynamic
  11.   192.168.0.119         d8-12-65-77-7b-61     dynamic
  12.   192.168.0.120         6c-4b-90-25-8e-ab     dynamic
  13.   192.168.0.255         ff-ff-ff-ff-ff-ff     static