![]() If you're on a Mac and Wireshark can't capture the traffic, you can use the MacOS version of tcpdump with the special iptap interface option you can capture traffic e.g. So whether you're trying to generate traffic, receive it, or monitor it, there's really no distinction between "inside" traffic and "outside" traffic, they just go through different devices, and you didn't tell Wireshark which one to capture on. ![]() Packets routed over that interface are sent to the VPN client, which encrypts them and sends inside new packets to the VPN server, which then get routed to the real WiFi device. (Usually a 'tun' or 'tap' device, though it's not always named such. When you connect to a VPN, the software creates a virtual network interface, assigns it an IP address, and so on. The ONLY INTERFACE in all of the metadata in wireshark is interface en0 (on my. Most correspond to physical network cards there's a "loopback" one for 127.0.0.1 as well. 7) To tell Windows how it can reach the subnet behind the remote VPN gateway, add the appropriate route by giving the following command in a command prompt with administrative permissions: route add 192.168.0.0 mask 255.255.255.0 192.168.3.1 Check whether Windows now can reach the remote subnet, e.g. I am using a vpn client and I want to capture packets on the virtual tun. ![]() Just tell Wireshark to monitor the VPN interface, not the actual Ethernet/WiFi one.Įach packet gets routed to a specific network interface.
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