NFF-Go
ethernet
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| NFF-Go | ethernet | |
|---|---|---|
| - | 13 | |
| 1,344 | 270 | |
| 0.0% | - | |
| 0.0 | 2.7 | |
| over 1 year ago | about 2 years ago | |
| Go | Go | |
| BSD 3-clause "New" or "Revised" License | MIT License |
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NFF-Go
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Tracking mentions began in Dec 2020.
ethernet
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Writing a Network Scanner using Python
After creating the ARP Request packet we need to now create an Ethernet Frame. The Ethernet frame contains fields such as Source and Destination Hardware (MAC) among others. Now, as the communication inside a network is carried out using the MAC Address, we can set the value of destination hardware address field to theMAC Address to which we want to communicate. Learn more about Ethernet Frame here.
- Ethernet Is Still Going Strong After 50 Years
- Twincat Master does not find couplers
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Ask HN: Any lightweight protocol on top of Ethernet without TCP/IP?
You can send raw packets with something like this [1] [2].
I imagine you want to test the approach is software before implementing it in an FPGA.
You can then construct Ethernet frames to be as simple as you like [3].
This question seems like what you might be trying to do [4].
[1] https://stackoverflow.com/questions/12229155/how-do-i-send-a...
[2] https://stackoverflow.com/questions/57133295/how-can-i-liste...
[3] https://en.wikipedia.org/wiki/Ethernet_frame
[4] https://stackoverflow.com/questions/815758/simple-serial-poi...
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Manipulating internet and wireless connections with different protocols
Ethernet frame structure (https://en.wikipedia.org/wiki/Ethernet_frame)
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MAC Address vs local IP?
Some communication does happen at the MAC level, like ARP, but these days it's all done with the expectation that your machine is going to be making use of TCP/IP. So this layer 2(-ish) protocol really just exists to establish the addressing. So the point of a private IP is mainly because all of the typical communication protocols we use expect one. Could you make something work without one? MAC-to-MAC? Yes, that's ethernet traffic, and the Wikipedia page shows the source and destination MACs as part of the structure of the header of a frame.
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Am I understanding how switches work correctly?
I find looking at the header structure directly helps me to wrap my head around it. At layer 2 you are dealing exclusively with Ethernet frames which have a number of fields in their header that indicate their source and destination MAC addresses, among other things. These frames are what the switch builds it's CAM table from and it uses that table to forward traffic, and for a layer 2 switch that is the entire picture.
- Help with L2 Networking Frames
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Ethernet frames
The preamble and SFD (and IPG) are not part of the frame, they are part of the Layer 1 Packet. This is one of the most common Ethernet misconceptions. See Wikpedia's Ethernet Frame article.
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Application of Digital Communications to Personal Life
Wrong layer. :) This is later two, or the Data Link layer. https://en.wikipedia.org/wiki/Ethernet_frame
What are some alternatives?
gopacket - Provides packet processing capabilities for Go
dns - DNS library in Go
gosnmp - An SNMP library written in Go
HTTPLab - The interactive web server
llb
fasthttp - Fast HTTP package for Go. Tuned for high performance. Zero memory allocations in hot paths. Up to 10x faster than net/http
gopcap - A simple wrapper around libpcap for the Go programming language
kcptun - A Stable & Secure Tunnel based on KCP with N:M multiplexing and FEC. Available for ARM, MIPS, 386 and AMD64。N:M 多重化と FEC を備えた KCP に基づく安定した安全なトンネル。 N:M 다중화 및 FEC를 사용하는 KCP 기반의 안정적이고 안전한 터널입니다. Un tunnel stable et sécurisé basé sur KCP avec multiplexage N:M et FEC.
water - A simple TUN/TAP library written in native Go.
stun - Fast RFC 5389 STUN implementation in go
kcp-go - A Crypto-Secure, Production-Grade Reliable-UDP Library for golang with FEC