On Wed, 2002-05-22 at 10:39, Mike Noyes wrote:
> On Wed, 2002-05-22 at 10:18, Ray Olszewski wrote:
> >  > > May 22 02:53:54 NRP-413 kernel: Redirect from D08A145C/eth0 to D08A1401
> >  > > ignored.Path = D08A1469 -> 42DA4753, tos 00
> > 
> > Unpacked, this says that the kernel is reporting that it received and 
> > refused an instruction to redirect from 208.138.20.92 (0xD08A145, which is 
> > the external gateway address in the routing table) to 208.138.20.01 
> > (0xD08A1401, another host on the external network). It is connected with a 
> > packet going from the router's external address 208.138.20.105 (0xD08A1469) 
> > to the non-local address 66.218.71.83 (0x42DA4753).
> > 
> > While I have not actually seen a message like this one before, it reads 
> > like a report of a message received fom the external gateway telling the 
> > system to use a different external gateway address ... probably sent via 
> > some standard routing protocol. (Perhaps someone here who knows routing 
> > protocols better than I can recognize it; I have a hazy memory of an "icmp 
> > redirect" packet type that may be involved.)
>
> I think you can stop logging of TOS redirects in network.config by
> changing the option below to yes. This may open up a possible security
> hole.
> 
> ALLIF_ACCEPT_REDIRECTS=NO

Pertinent icmp redirect information.

http://www.iana.org/assignments/icmp-parameters
ftp://ftp.isi.edu/in-notes/rfc792.txt

-- 
Mike Noyes <[EMAIL PROTECTED]>
http://sourceforge.net/users/mhnoyes/
http://leaf-project.org/


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