Groups | Search | Server Info | Login | Register

Groups > comp.protocols.ppp > #133

Re: pppd: reject IPCP or IP6CP configuration requests

Newsgroups comp.protocols.ppp
Date 2023-09-03 03:45 -0700
References <09d30e8f-8c14-4bed-8b6b-cd27190d0070n@googlegroups.com> <ud1k71$rmk8$1@dont-email.me>
Message-ID <e6680e1c-666e-4444-8b5d-af982d8953dfn@googlegroups.com> (permalink)
Subject Re: pppd: reject IPCP or IP6CP configuration requests
From michael gurevich <mihailgur11@gmail.com>

Show all headers | View raw

On Sunday, September 3, 2023 at 12:38:42 PM UTC+3, Marco Moock wrote:
> Am 03.09.2023 um 01:48:30 Uhr schrieb michael gurevich: 
> 
> > I am trying to establish a ppp link for device running FreeRTOS that 
> > has either an IPV6 or an IPV4 address with host running linux. For 
> > example if device has only IPV6 address, sending pppd command creates 
> > on host global IPV6 address and "not global" IPV4 address.
> IIRC IPv6CP differs from IPCP (IPv4), only an interface identifier (64 
> bit, not an IPv6 address), is being negotiated. 
> The client then creates a link-local (fe80::/64) address with that 
> identifier. 
> After that is send a router solicitation to get an router advertisement. 
> This can (normally it does) include a prefix (2001:db8::/64) with the A 
> flag (address autoconfiguration). It can now use that prefix to create 
> the global address with the identifier exchanged via IPv6CP. 
> 
> The IPv6 router advertisement can have the M or O flag enabled, that 
> means the client should contact a DHCPV6 server to get addresses or 
> additional information like DNS or NTP servers.

Hello Marco Mooc,

Thank you for your quick response.
Yes you are right regarding IPv6CP

My problem is a bit different, along with IPV6 link-local and IPV6 global addresses,
I got a link-local IPV4 address despite the fact the device is lacking an IPV4 address initially.
I wanted to prevent it and the IPCP request was rejected , but the request kept coming indefinitely.

Back to comp.protocols.ppp | Previous | Next — Previous in thread | Next in thread | Find similar

Thread

pppd: reject IPCP or IP6CP configuration requests michael gurevich <mihailgur11@gmail.com> - 2023-09-03 01:48 -0700
  Re: pppd: reject IPCP or IP6CP configuration requests Marco Moock <mo01@posteo.de> - 2023-09-03 11:38 +0200
    Re: pppd: reject IPCP or IP6CP configuration requests michael gurevich <mihailgur11@gmail.com> - 2023-09-03 03:45 -0700
      Re: pppd: reject IPCP or IP6CP configuration requests Marco Moock <mo01@posteo.de> - 2023-09-03 13:10 +0200
        Re: pppd: reject IPCP or IP6CP configuration requests michael gurevich <mihailgur11@gmail.com> - 2023-09-04 07:41 -0700
          Re: pppd: reject IPCP or IP6CP configuration requests Marco Moock <mo01@posteo.de> - 2023-09-04 17:11 +0200
            Re: pppd: reject IPCP or IP6CP configuration requests michael gurevich <mihailgur11@gmail.com> - 2023-09-04 23:19 -0700
              Re: pppd: reject IPCP or IP6CP configuration requests Marco Moock <mo01@posteo.de> - 2023-09-05 08:59 +0200
                Re: pppd: reject IPCP or IP6CP configuration requests michael gurevich <mihailgur11@gmail.com> - 2023-09-05 04:50 -0700
                Re: pppd: reject IPCP or IP6CP configuration requests Marco Moock <mo01@posteo.de> - 2023-09-06 16:01 +0200

csiph-web