The router's two PC connected to a router in the process of communication-CodePudding

1. Pc1 first request to the MAC address to the gateway, the gateway reply pc1
2. Pc1 sends the ICMP packets to the router, the router unlock without the MAC address of the pc2, send ARP request, ask pc2 MAC, pc2 to respond,
3. The timeout pc1 to encapsulate the ICMP packets sent to the gateway, router unlock to encapsulate forwarded to pc2, unlock after you receive the pc2 send ICMP response packet

The result of ARP request on
Caught it will catch the request packet, but someone said that have some say no, meng,
Want to ask why caught will catch the ARP request packet

CodePudding user response:

Have arp cache don't have, have no the arp cache will need, after an arp request to the information in the cache,
Under the CMD use arp - a and arp - d try effect,

CodePudding user response:

See the arp table of pc1, won't send arp with pc2