Re: ICMP Source routed packets
On Thu, Oct 12, 2000 at 04:41:36PM +0200, Raphael Bauduin wrote:
> Hi,
>
> I have this in my dmesg:
>
> ICMP: XXX.XXX.XXX.XXX: Source Route Failed.
>
> >From the info I found, it means this machine sent a ICMP source routed packet
> and that this packet was rejected by the machine XXX.XXX.XXX.XXX (this is a
> web server....).
> >From what I see, the linux kernel rejects source routed packet (option
> CONFIG_IP_NOSR=y). But is this only for IP packets or is it applied to ICMP?
> If it applies to ICMP, how come I get this error?
ICMP is a protocol on the level of UDP or TCP. It is sent inside IP.
Thus, a source routed ICMP packet _is_ a source routed IP packet.
Obviously, the answer to your question is that it will apply.
--
#define X(x,y) x##y
Peter Cordes ; e-mail: X(peter@llama.nslug. , ns.ca)
"The gods confound the man who first found out how to distinguish the hours!
Confound him, too, who in this place set up a sundial, to cut and hack
my day so wretchedly into small pieces!" -- Plautus, 200 BCE
Reply to: