Re: Kernel 2.2.18: Protocol 0008 is buggy

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Wed Jan 31 2001 - 08:37:04 EST


> The msg comes from net/core/dev.c, and this device is using the Cisco HDLC
> protocol in drivers/net/hdlc.c . However, AFAIK, 0008 and 0608 represent
> IP and ARP (respectively), not Cisco HDLC. So ...
>
> What I'd like to know is: what exactly causes this msg?? It seems that
> it's printed when someone sends a packet without properly setting
> skb->nh.raw first, but who's supposed to set skb->nh.raw?? The HW driver??
> The data link (HDLC) driver?? The kernel protocol drivers? How should I go
> about fixing this problem, where should I start??

It should be set before netif_rx() is called on the packet. Typically that
means the driver or its support code sets protocol and nh.raw and if a
second header is pulled up then they are set again by whichever code does that
and calls netif_rx again

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Wed Jan 31 2001 - 21:00:38 EST