route (is it forwarding packets?) (sorry if duplicate).
Gene Heskett
gene.heskett at verizon.net
Wed Aug 25 07:51:22 UTC 2004
On Wednesday 25 August 2004 03:02, Chadley Wilson wrote:
>On Tue, 2004-08-24 at 14:17, Bob Chiodini wrote:
>> On Tue, 2004-08-24 at 08:59, Chadley Wilson wrote:
>> > Greetings Guys,
>> >
>> > I am trying to understand this but I am confused! :=\
>> > Is this table forwarding packets from one iface to the other?
>> >
>> > [root at chadlin root]# route
>> > Kernel IP routing table
>> > Destination Gateway Genmask Flags Metric Ref Use
>> > Iface
>> > 192.168.10.0 * 255.255.255.0 U 0 0 0 eth0
>> > 196.25.100.0 * 255.255.255.0 U 0 0 0 eth1
>> > 127.0.0.0 * 255.0.0.0 U 0 0 0 lo
>> > default * 0.0.0.0 U 0 0 0 eth0
>> > [root at chadlin root]#
>> > --
>
>Interesting I have installed Fedora 2 on my Home PC and FC1 my
> server at work. They are not linked in any way.At work I have two
> address ranges and at home I have on.
>I noticed last night at home that route was returning a route for a
>network I never setup and never installed.
>This morning I checked my route on my server and the same route is
>there. My home PC has absolutley no internet access. an like wise my
> NFS server.
>
>Here is the routing table,
>
> [root at preload RPMS]# route -n
>Kernel IP routing table
>Destination Gateway Genmask Flags Metric Ref Use
> Iface 192.168.10.0 0.0.0.0 255.255.255.0 U 0 0
> 0 bond0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0
> 0 bond0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0
> 0 lo [root at preload RPMS]#
>
>I configured the bond device but there is no IP range of 169.245. on
> any of my networks. Where does this come from?
>
I thought that was a good question myself as I also have this address
in my route -n output. So I went looking for it with grep.
I came up with this:
[root at coyote sysconfig]# grep -R 169.254 *
network-scripts/ifup: ip route replace 169.254.0.0/16 dev
${REALDEVICE}
network-scripts/network-functions-ipv6: # test 169.254.0.0/16
(APIPA / DHCP link local)
That snippet of code and comment from network-scripts/ifup:
# Add Zeroconf route.
if [ -z "${NOZEROCONF}" -a "${ISALIAS}" = "no" ]; then
ip route replace 169.254.0.0/16 dev ${REALDEVICE}
fi
WTH is a Zeroconf route? Inquiring minds want to know.
[...]
>Should I remove this route and run a chkrootkit on my system?
My guess, from the headers of those two files is no, but what RedHat
intended to do there I'd sure like to find out.
A normal icmp_ping to that address doesn't, and also doesn't make it
thru my firewall so it can ping the world.
How about it RedHat, whats this 169.254.0.0 stuff all about?
--
Cheers, Gene
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
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by Gene Heskett are:
Copyright 2004 by Maurice Eugene Heskett, all rights reserved.
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