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Re: my ARP message



On Sat, 2 Nov 1996, guy keren wrote:

> > "ARP: dev->type mangled! 15 dlci00" is now what I get on the console
> > (printk)
> > 
> > #define ARPHRD_DLCI     15              /* Frame Relay DLCI             */
> > 
> > and indeed it is coming through interface dlci00, which is the link to
> > Netmedia...
> 
> not to patch your kernel, but the idea is simply:
> ARP is used on local networks only. if you get it through a frame-relay
> link, it means the remote side is missconfigured - it's probably not a
> linux bug (i.e. if it's an iincoming packet, just dump it to bit bucket,
> and ask netmedia to check their definitions).

knock knock! hello?

I know what ARP is used on LANs for, but as you can see, the misterious
"ARP packet" has many types, as many as 15 at least, since type 15 is a FR
specific one, and I quote from the /usr/include/linux/if_arp.h file again:

#define ARPHRD_DLCI     15              /* Frame Relay DLCI             */

fact is that Linux ACKNOWLEDGES it as a legitimate ARP type, but it's
content is probably what drives it nuts. maybe it has something to do with
RIP2 or some other routing protocol? I don't want to enable that, and
AFAIK it's not a low-level protocol that uses ARP broadcasts... I'll leave
that to the netmedia experts (I hope they help me with this poser better
than they did with the last one :-)) 



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