RedHat 9.0 PPP warning: Unsupported protocol 0x8057 received

I connected my Toshiba PDA to my Linux RedHat 9.0 (kernel 2.4.20-8)
via USB. In the /var/log/messages, I get a warning message:

Dec 2 16:35:04 localhost pppd[3444]: Unsupported protocol 0x8057
received

Is someone trying to negotiate to IPv6? If so, why? How can I mitigate
this problem?

The communication between the PDA and the PC appears to work OK.

Thanks

In article <(E-Mail Removed) >, Dennis C wrote:

>I connected my Toshiba PDA to my Linux RedHat 9.0 (kernel 2.4.20-8)
>via USB.

2.4.20-8 was the out-of-box kernel. Since then, there were eight
updates from RH (the last to 2.4.20-31.9), and there _may_ have been
further errata available from download.fedoralegacy.org, although
officially, RH9 is beyond 'end-of-life'.

>In the /var/log/messages, I get a warning message:
>
>Dec 2 16:35:04 localhost pppd[3444]: Unsupported protocol 0x8057
>received

[compton ~]$ head -1 rfcs/ppp-numbers
http://www.iana.org/assignments/ppp-numbers
[compton ~]$ grep 8057 rfcs/ppp-numbers
8057 IPv6 Control Protovol [Hinden]
[compton ~]$

>Is someone trying to negotiate to IPv6?

Yes

>If so, why?

You'd have to look at the peer's setup.

>How can I mitigate this problem?
>
>The communication between the PDA and the PC appears to work OK.

What problem? The peer asked if you wanted to speak IPv6. Your
pppd replied "never heard of it". Apparently, you then negotiated
another protocol, probably IPv4, and things are great. Or is your
Red Hat box getting peni^Wprotocol envy? ;-)

For what it's worth, "linux.redhat.ppp" was a mirror of the Red Hat
PPP Mailing List, and it's pretty dead now - I've seen ten posts
since July first.

Old guy