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<div class="moz-cite-prefix">Hi Eugene,<br>
<br>
See the response from Simon. I am also not familiar with
redhat/centos/Fedora, so no idea where the script will be located.
This script is called by dhclient to do that actual configuration
work. <br>
<br>
Cheers<br>
<br>
<br>
Rudy<br>
<br>
On 17-02-15 12:44, Eugène Ngontang wrote:<br>
</div>
<blockquote
cite="mid:CAMbdO_tjBeYY7vPU=09EenAvzfuJdKa2PS4av4yfx0jP+-gKTg@mail.gmail.com"
type="cite">
<div dir="ltr">Hi,
<div><br>
</div>
<div>To answer your questions :</div>
<div><span style="font-size:12.8000001907349px">- which
distribution is this? / <b>Fedora 18</b></span><br
style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">- is dhcp provided
by the a package from the distribution, or is it hand
compiled? / <b>Package</b></span><br
style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">- which release of
dhclient/dhcp is in use? / <b>Internet Systems Consortium
DHCP Server V3.0.5-RedHat & nternet Systems Consortium
DHCP Client 4.2.5</b></span><br
style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">- dhclient
typically calls a script to set the values. Is this script
correct and in place? / <b>Which script are you talking
about here? The dhclient init script???</b></span><br
style="font-size:12.8000001907349px">
</div>
<div><span style="font-size:12.8000001907349px"><b><br>
</b></span></div>
<div><span style="font-size:12.8000001907349px"><b>I've four
other systems with exactly the same configuration and
connected to same dhcp server, which are working fine.<br>
<br>
</b></span></div>
<div><b style="">
<div style=""><span style="font-size:12.8000001907349px">[PRD][root@hostname]#
cat /var/lib/dhclient/dhclient.leases</span></div>
<div style=""><span style="font-size:12.8000001907349px">lease
{</span></div>
<div style=""><span style="font-size:12.8000001907349px">
interface "eth0";</span></div>
<div style=""><span style="font-size:12.8000001907349px">
fixed-address 10.10.10.22;</span></div>
<div style=""><span style="font-size:12.8000001907349px">
option subnet-mask 255.255.255.240;</span></div>
<div style=""><span style="font-size:12.8000001907349px">
option routers 10.10.10.17;</span></div>
<div style=""><span style="font-size:12.8000001907349px">
option dhcp-lease-time 604800;</span></div>
<div style=""><span style="font-size:12.8000001907349px">
option dhcp-message-type 5;</span></div>
<div style=""><span style="font-size:12.8000001907349px">
option domain-name-servers 1.1.2.3,1.2.2.3;</span></div>
<div style=""><span style="font-size:12.8000001907349px">
option dhcp-server-identifier 11.12.254.100;</span></div>
<div style=""><span style="font-size:12.8000001907349px">
option nis-domain "xxx.priv";</span></div>
<div style=""><span style="font-size:12.8000001907349px">
option domain-name "<a moz-do-not-send="true"
href="http://fr.mydomain.org">fr.mydomain.org</a>";</span></div>
<div style=""><span style="font-size:12.8000001907349px">
renew 5 2015/02/20 22:26:22;</span></div>
<div style=""><span style="font-size:12.8000001907349px">
rebind 1 2015/02/23 14:21:26;</span></div>
<div style=""><span style="font-size:12.8000001907349px">
expire 2 2015/02/24 11:21:26;</span></div>
<div style=""><span style="font-size:12.8000001907349px">}</span></div>
<div style="font-size:12.8000001907349px"><br>
</div>
<div style="">
<div style="font-size:12.8000001907349px">[PRD][root@hostname]#
cat
/var/lib/dhclient/dhclient-b6a65dbe-6524-4070-b4b7-3cb2b1333187-eth0.lease</div>
<div style="font-size:12.8000001907349px">lease {</div>
<div style="font-size:12.8000001907349px"> interface
"eth0";</div>
<div style="font-size:12.8000001907349px"> fixed-address
10.10.0.22;</div>
<div style="font-size:12.8000001907349px"> option
subnet-mask 255.255.255.240;</div>
<div style="font-size:12.8000001907349px"> option
dhcp-lease-time 604800;</div>
<div style="font-size:12.8000001907349px"> option routers
10.10.10.17;</div>
<div style="font-size:12.8000001907349px"> option
dhcp-message-type 5;</div>
<div style="font-size:12.8000001907349px"> option
dhcp-server-identifier 11.12.254.100;</div>
<div style="font-size:12.8000001907349px"> option
domain-name-servers 1.1.2.3,1.2.2.3;</div>
<div style="font-size:12.8000001907349px"> option
nis-domain "xxx.priv";</div>
<div style="font-size:12.8000001907349px"> option
domain-name "<a moz-do-not-send="true"
href="http://fr.mydomain.org">fr.mydomain.org</a>";</div>
<div style="font-size:12.8000001907349px"> renew 4
2015/02/19 14:33:43;</div>
<div style="font-size:12.8000001907349px"> rebind 0
2015/02/22 15:00:34;</div>
<div style="font-size:12.8000001907349px"> expire 1
2015/02/23 12:00:34;</div>
<div style="font-size:12.8000001907349px">}</div>
<div style="font-size:12.8000001907349px">lease {</div>
<div style="font-size:12.8000001907349px"> interface
"eth0";</div>
<div style="font-size:12.8000001907349px"> fixed-address
10.10.10.22;</div>
<div style="font-size:12.8000001907349px"> option
subnet-mask 255.255.255.240;</div>
<div style="font-size:12.8000001907349px"> option routers
10.10.10.17;</div>
<div style="font-size:12.8000001907349px"> option
dhcp-lease-time 604800;</div>
<div style="font-size:12.8000001907349px"> option
dhcp-message-type 5;</div>
<div style="font-size:12.8000001907349px"> option
domain-name-servers 1.1.2.3,1.2.2.3;</div>
<div style="font-size:12.8000001907349px"> option
dhcp-server-identifier 10.12.254.100;</div>
<div style="font-size:12.8000001907349px"> option
nis-domain "xxx.priv";</div>
<div style="font-size:12.8000001907349px"> option
domain-name "<a moz-do-not-send="true"
href="http://fr.mydomain.org">fr.mydomain.org</a>";</div>
<div style="font-size:12.8000001907349px"> renew 4
2015/02/19 17:16:26;</div>
<div style="font-size:12.8000001907349px"> rebind 0
2015/02/22 16:20:59;</div>
<div style="font-size:12.8000001907349px"> expire 1
2015/02/23 13:20:59;</div>
<div style="font-size:12.8000001907349px">}</div>
<div style="font-size:12.8000001907349px"><br>
</div>
<div style="">
<div style=""><span style="font-size:12.8000001907349px">[PRD][root@hostname]#
cat /etc/sysconfig/network-scripts/ifcfg-eth0</span></div>
<div style=""><span style="font-size:12.8000001907349px">#
Generated by parse-kickstart</span></div>
<div style=""><span style="font-size:12.8000001907349px">UUID=b6a65dbe-6524-4070-b4b7-3cb2b1333187</span></div>
<div style=""><span style="font-size:12.8000001907349px">BOOTPROTO=dhcp</span></div>
<div style=""><span style="font-size:12.8000001907349px">DEVICE=eth0</span></div>
<div style=""><span style="font-size:12.8000001907349px">ONBOOT=yes</span></div>
<div style=""><span style="font-size:12.8000001907349px">IPV6INIT=no</span></div>
<div style=""><span style="font-size:12.8000001907349px">PERSISTENT_DHCLIENT=yes</span></div>
</div>
<div style="font-size:12.8000001907349px"><br>
</div>
</div>
</b></div>
<div><span style="font-size:12.8000001907349px"><b>Are you
seeing anything missing here??? Thanks.</b></span></div>
<div><span style="font-size:12.8000001907349px"><b><br>
</b></span></div>
<div><span style="font-size:12.8000001907349px"><b>Regards,</b></span></div>
<div><span style="font-size:12.8000001907349px"><b>Eugène NG</b></span></div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">2015-02-17 12:16 GMT+01:00 Rudy
Zijlstra <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:rudy@grumpydevil.homelinux.org"
target="_blank">rudy@grumpydevil.homelinux.org</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>Hi Patrick,<br>
<br>
I would suggist to find a strong cup of coffee ;)<br>
<br>
DHCP is designed to work with no IP routing in place at
all. Please consider that DHCP provides the computer
with the IP address it is to use. Any gateway is
dependent on that IP address and CANNOT be assigned
before the IP address is known. <br>
<br>
The correct question is indeed posed by the OP, which is
why the gateway is not applied from the DHCP response. <br>
<br>
Some questions:<br>
- which distribution is this?<br>
- is dhcp provided by the a package from the
distribution, or is it hand compiled?<br>
- which release of dhclient/dhcp is in use?<br>
- dhclient typically calls a script to set the values.
Is this script correct and in place?<br>
<br>
Cheers<span class="HOEnZb"><font color="#888888"><br>
<br>
<br>
<br>
Rudy</font></span>
<div>
<div class="h5"><br>
<br>
On 17-02-15 11:59, Patrick Trapp wrote:<br>
</div>
</div>
</div>
<div>
<div class="h5">
<blockquote type="cite">
<div>Perhaps I am not completely awake yet, but
don't you have to have the default gateway in
place to have network communication? That is,
doesn't it have to precede the DHCP process?</div>
<div><br>
</div>
<div>It sounds to me like you just need to make the
default route persistent so it will survive a
reboot. How that is done depends on the flavor of
Linux you are running.</div>
<div><br>
</div>
<div>Patrick<br>
<br>
<br>
</div>
<div><br>
On Feb 17, 2015, at 4:43 AM, Eugène Ngontang <<a
moz-do-not-send="true"
href="mailto:sympavali@gmail.com"
target="_blank">sympavali@gmail.com</a>>
wrote:<br>
<br>
</div>
<blockquote type="cite">
<div>
<div dir="ltr">
<div>Hi all,</div>
<div><br>
</div>
<div>I've a remote linux machine whose the
routing table is :</div>
<div><br>
</div>
<div> [root@hostname]# route -n</div>
<div> Kernel IP routing table</div>
<div> Destination Gateway
Genmask Flags Metric Ref Use
Iface</div>
<div> 0.0.0.0 0.0.0.0
0.0.0.0 U 0 0 0 eth0</div>
<div> 10.10.10.16 0.0.0.0
255.255.255.240 U 0 0 0 eth0</div>
<div> 169.254.0.0 0.0.0.0
255.255.0.0 U 1002 0 0 eth0</div>
<div><br>
</div>
<div>The default gateway I should use is
10.10.10.17, and should be given by a linux
dhcp server. So to be able to connect to the
system I call someone on the site ask him to
add the route manually (**route add default
gw 10.10.10.17**).</div>
<div>When the route has been added I can now
connect to the system. And once connected
when I check the routing table again I have
this :</div>
<div><br>
</div>
<div> [root@hostname]# route -n</div>
<div> Kernel IP routing table</div>
<div> Destination Gateway
Genmask Flags Metric Ref Use
Iface</div>
<div> 0.0.0.0 10.10.10.17
0.0.0.0 UG 0 0 0
eth0 (UG flag means it's up and is the
gateway)</div>
<div> 0.0.0.0 0.0.0.0
0.0.0.0 U 0 0 0 eth0</div>
<div> 10.10.10.16 0.0.0.0
255.255.255.240 U 0 0 0 eth0</div>
<div> 169.254.0.0 0.0.0.0
255.255.0.0 U 1002 0 0 eth0</div>
<div><br>
</div>
<div>And when I restart the system, it boots
without the right default gateway, and I'm
obliged to call again to set the route
manually. The dhclient lease file has the
good **"option routers"** taken from the
dhcp server.</div>
<div><br>
</div>
<div>Now I'm trying to remove the unspecified
route from the routing table but each time I
try I'm disconnected from the machine. </div>
<div><br>
</div>
<div>I've tried these different ways :</div>
<div><br>
</div>
<div> route del -net 0.0.0.0 netmask
0.0.0.0 metric 0</div>
<div><br>
</div>
<div> route del default gw 0.0.0.0</div>
<div><br>
</div>
<div> route del -net 0.0.0.0 gw 0.0.0.0</div>
<div><br>
</div>
<div>The three attempts disconected me from
the server, and the guy at the other side
tells me that each time I try to remove the
route the default route becomes a star
(**default ***). I'm obliged to let him add
the route again mannualy, and when I'm
connected, and I restart the network I lose
the connection again.</div>
<div><br>
</div>
<div>So my questions are : </div>
<div>1) Why does this unspecified default
route come back every time?</div>
<div>2) How can I (what's the way to) remove
it without spoiling the routing table
(losing the good default gateway).</div>
<div><br>
</div>
<div>Thanks.<br>
</div>
<div><br>
</div>
<div>Regards,</div>
<div>Eugène NG</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
-- <br>
<div><font color="#3366ff"><a
moz-do-not-send="true"
href="mailto:ngonta_e@epitech.net"
target="_blank">ngonta_e@epitech.net</a></font>
<div><font color="#3366ff"><a
moz-do-not-send="true"
href="mailto:sympavali@gmail.com"
target="_blank">sympavali@gmail.com</a></font></div>
<div>------------------------------------------------------------</div>
<div><i><b>Aux hommes il faut un chef, et au</b></i><i><b> chef
il faut des hommes!<br>
L'habit ne fait pas le moine, mais
lorsqu'on te voit on te juge!<br>
</b></i></div>
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-- <br>
<div class="gmail_signature"><font color="#3366ff"><a
moz-do-not-send="true" href="mailto:ngonta_e@epitech.net"
target="_blank">ngonta_e@epitech.net</a></font>
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<div>------------------------------------------------------------</div>
<div><i><b>Aux hommes il faut un chef, et au</b></i><i><b> chef
il faut des hommes!<br>
L'habit ne fait pas le moine, mais lorsqu'on te voit on
te juge!<br>
</b></i></div>
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