在侦听所有设备上的网络流量时，如何识别数据包的接口? [英] How do you Identify the interface of a packet while listening to network traffic on all devices?

问题描述

我正在编写一个 python 程序，它需要监听所有网络设备上的流量并根据传入接口识别数据包.为了监听所有接口，我在没有指定设备的情况下开始捕获，但我无法表示特定数据包的接口.这是怎么做的?

解决方案

我认为 MAC 地址对您来说已经足够了.

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数据包的前 6 个八位字节是目的 MAC 地址，紧接着是源 MAC 地址的 6 个八位字节.

I am writing a python program that needs to listening to traffic on all networking devices and identify packets based on their incoming interface. To listen on all interfaces I started my capture without specify a device, but I am unable to denote the interface of a particular packet. How is this done?

解决方案

I assume that the MAC address is sufficient information for you.

The first 6 octets of a packet is the destination MAC address, which is immediately followed by the 6 octets of source MAC address.

Source

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