Server 192.168.2.1 00-00-00-00-01-02
| netmask 255.255.255.0
|
Internet
|
gateway 192.168.1.1 00-00-00-00-10-01
|
switch
|
pc1 192.168.1.10 00-00-00-00-01-01
netmask 255.255.255.0
當 pc1 送封包給 server
會先發送 arp 問 who is 192.168.2.1 please tell 192.168.1.10
gateway會回應 192.168.2.1 is at 00-00-00-00-10-01
pc1發送封包
DestAddress = 00-00-00-00-10-01
SrcAddress = 00-00-00-00-01-01
DestIPAddr = 192.168.2.1
SrcIPAddr = 192.168.1.10
封包到switch後 會forward給gateway 不會更改封包內容
想請問
1. gateway 收到封包後 會不會更改封包內容呢?
2. 若 server回應給pc1 那gateway收到的封包
DestAddress SrcAddress DestIPAddr SrcIPAddr 會是長怎樣啊?
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