Unlike standard arp, the atkarp command only allows display of the contents of the Alacritech arp cache. It does not allow for manipulation of arp entries. The Alacritech arp cache will only contain entries for networks that are connected to Alacritech cards. In order to add new arp cache entries, use the Microsoft arp command; The Alacritech drivers will intercept entries that are relevant to the Alacritech stack. At present, there is no way to delete entries from the Alacritech arp cache other than letting them expire.

It is not unusual for the Microsoft arp cache and the Alacritech arp cache to have different contents on the same network, but any entries with the same IP address should contain the same MAC address.

	
L:\bjones\tools\atktools>arp -a

Interface: 192.168.50.110 on Interface 0x1000005
  Internet Address      Physical Address      Type
  192.168.50.197        00-90-27-b3-50-27     dynamic
  192.168.50.2          00-10-42-00-74-d4     dynamic

Interface: 10.1.100.100 on Interface 0x4000003
  Internet Address      Physical Address      Type
  10.1.2.1              00-80-3f-f4-41-87     dynamic
  10.1.101.2            00-60-08-9a-c3-80     dynamic

L:\bjones\tools\atktools>atkarp
Internet Address      Physical Address
192.168.50.102        00-10-42-00-24-8F
192.168.50.197        00-90-27-B3-50-27
192.168.50.109        00-D0-B7-C8-F8-01
192.168.50.116        00-10-42-00-9A-13
192.168.50.11         00-01-30-BB-6D-A0
192.168.50.2          00-10-42-00-74-D4