Need help to interp kernel log message.

[Roman Neuhauser]

# webmaster at swedehost.com / 2003-09-15 12:17:01 +0200:
> On Saturday 13 September 2003 03.24, Roman Neuhauser wrote:
> > # webmaster at swedehost.com / 2003-09-12 05:37:17 +0200:
> > > I 've got a message in my logfiles that I don't understand.
> > > The ip-addresses are none that I'm to my knowing are associated
> > > with. Wonder what it is or if it's anything to worry about.
> > >
> > > odin.swedehost.com kernel log messages:
> > > > icmp redirect from 65.104.98.146: 204.152.184.189 =>
> > > > 65.104.98.145
> > >
> > > Checking up on the above Ip-addresses don't ring any bells ider.
> >
> >     Looks like your machine was sending traffic to 204.152.184.189,
> > and an intermediate host at 65.104.98.146 sent an ICMP redirect
> > message telling it to send them to 65.104.98.145 instead. See RFC
> > 792.
> >
> >     As for security concerns: any packet might have the source
> > address spoofed, and obeying ICMP type 5 messages in a hostile
> > environment (like the internet) means you're giving your network
> > traffic out for public consumption.
> 
> Thx for your answer.
> In my rc.conf file, I do have 
> icmp_drop_redirect="YES" 
> icmp_log_redirect="YES"
> but I guess that's not enough.
> Probably have to block in my firewall.

    what makes you think so? did the box really change the route?

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