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Support for udp

DISCUSSION Sagar Acharya 2 participants 3 messages Oct 5, 2023 – Oct 6, 2023 1 message not in the archive PPP protocol drivers and compressors

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#2 lore raw

So are you saying pppd does not support udp or does it? Thanking you
Sagar Acharya
https://humaaraartha.in/selfdost/selfdost.html

6 Oct 2023, 11:06 by [email protected]:

Quoted 11 lines

pppd works at IP layer. All IP protocols not dependent on broadcast capabilities should work.

Quoted 7 lines · Sagar Acharya

Does pppd support udp? I am able to access tcp but not udp with pppd. Thanking you
Sagar Acharya
https://humaaraartha.in/selfdost/selfdost.html

Kindly cc me as I am not subscribed.

#3 lore raw
Quoted 2 lines · Sagar Acharya

So are you saying pppd does not support udp or does it? Thanking you Sagar Acharya https://humaaraartha.in/selfdost/selfdost.html

You didn't understand the answer because you didn't actually ask a sensible question.

PPP is a "layer-2"
UDP is a "layer-4"

https://en.wikipedia.org/wiki/OSI_model
https://www.oreilly.com/library/view/internet-core-protocols/1565925726/ch01s02s02.html

There are situations where one might encapsulate PPP packets into UDP packets. This usually happens in back-hauls of ISP/DSL networks using L2TP. But, that's not a typical situation for an end-user.

Myself and many others have built commercial BRAS using pppd, and there is even support in the Linux kernel for efficient encap/decap of L2TP/PPP packets.
https://en.wikipedia.org/wiki/Broadband_remote_access_server

Quoted 11 lines
Quoted 11 lines

pppd works at IP layer. All IP protocols not dependent on broadcast capabilities should work.

Quoted 6 lines · Sagar Acharya

Does pppd support udp? I am able to access tcp but not udp with pppd. Thanking you Sagar Acharya
https://humaaraartha.in/selfdost/selfdost.html

Kindly cc me as I am not subscribed.