Hi list, I have updated Npcap to 0.04-r4. This version modified "Npcap Loopback Adapter"'s MTU to 65536, so the maximum packet size is 65550 (65536 + eth_hdr_size).
But I found weird result in Wireshark's "Interface Details" dialog. 1) Npcap Loopback Adapter: Transmit Buffer Space 1514 Receive Buffer Space 1514 Transmit Block Size 1 Receive Block Size 1 Maximum Packet Size 65550 Another Ethernet interface's result is normal: 2) Ethernet0: Transmit Buffer Space 1550336 Receive Buffer Space 779264 Transmit Block Size 1514 Receive Block Size 1514 Maximum Packet Size 1514 In Linux, Wireshark doesn't have an "Interface Details" dialog, so I can't know what the expected result should be for a loopback interface. So I'd like to know what these numbers are and is the result of Npcap Loopback Adapter correct? It doesn't seem to affect the capture result. The latest installer is at: https://svn.nmap.org/nmap-exp/yang/NPcap-LWF/npcap-nmap-0.04-r4.exe Cheers, Yang
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