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Date:      Wed, 25 Mar 1998 10:26:37 +0000
From:      Karl Pielorz <kpielorz@tdx.co.uk>
To:        isp@FreeBSD.ORG
Subject:   Kernel sysctl...
Message-ID:  <3518DBDD.79E76018@tdx.co.uk>

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While looking through the sysctl's I found the one:

net.inet.ip.redirect=1

Does this mean what I think it does? (i.e. that the kernel will honour icmp
redirects?) - Our firewall drops all sourcerouted packets etc. - but is
there anything wrong with setting this to '0' as well? (just to be sure)?

I guess if I do this I'm going to have to make sure each box knows about the
network (at the moment they actually do get ICMP redirects from our default
router - telling them where the different bits of our subnetted network
are... :-(

Also:

net.inet.ip.sourceroute=0

I presume means the kernel will also drop source-routed packets? (as well as
our ipfw blocking them?)

Is there any way of setting this in the Kernel at compile time (I've looked
around in LINT to no avail... :-(

Were running 2.2.5-R...

Regards,

Karl Pielorz

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