[c-nsp] Understanding how ARP works

[Daniel Dib]

*On SwitchA:*


SwitchA receives the request (arp who has) for the IP address of Host B and
it checks its MAC table but none found so it will broadcast the request to
all ports and changes the Src MAC to that of the switch port that is
directly connected to e0 on the router.

Switches don't modify frames, they just forward them. So the switch will not
modify the src MAC. The frame will be a broadcast as Gert said
FF-FF-FF-FF-FF-FF. The router responds with it's MAC and the switch learns
what port this MAC sourced from. Or did I misinterpret your text?

/Daniel