Support for udp

Support for udp

[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.

Re: Support for udp

[Sagar Acharya]

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 simha@multitech.co.in:

> pppd works at IP layer. All IP protocols not dependent on broadcast capabilities should work.
>
> On 05-10-2023 23:30, Sagar Acharya wrote:
>
>> 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.
>>

Re: Support for udp

[Michael Richardson]

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Sagar Acharya <sagaracharya@tutanota.com> wrote:
    > 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

    >> pppd works at IP layer. All IP protocols not dependent on broadcast
    >> capabilities should work.
    >>
    >> On 05-10-2023 23:30, Sagar Acharya wrote:
    >>
    >>> 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.
    >>>

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