dhcp client problems

nobody · May 11, 2004

Lo,

I have some problems connecting to the internet with mandrake 10(2.6.2-3mdksmp).I have an onboard lan(eth0) wich i like to use for connection with my laptop and realtek networkcard(eth1) witch is connected to my cable modem.

I have a cable connection with brutele in brussels(belgium) and I tried drakconnect with dhcp-client / dhcpxd / dhcpd. .

He seems to find the dhcpserver because when I run the drak wizard for a new connection I get DNS server1 212.68.193.217 and DNS server2 212.68.193.216. and search domain brutele.be.

When i do monitor connections i click connect i see stuff being send and received and the lights on my modem go off and on (send /receive).

So I tried manualy running dhcp-client, then I see some discoveries, requests and offers, its like they miss eachother:

dhclient:

---------

Internet Software Consortium DHCP Client V3.0.1rc13

For info, please visit http://www.isc.org/products/DHCP

sit0: unknown hardware address type 776

/sbin/dhclient-script: configuration for sit0 not found.

/sbin/dhclient-script: configuration for lo not found.

sit0: unknown hardware address type 776

Listening on LPF/eth0/00:0c:6e:64:14:ef

Sending on LPF/eth0/00:0c:6e:64:14:ef

Listening on LPF/sit0/

Sending on LPF/sit0/

Listening on LPF/lo/

Sending on LPF/lo/

Listening on LPF/eth1/00:c0:49:d5:a2:dd

Sending on LPF/eth1/00:c0:49:d5:a2:dd

Sending on Socket/fallback

DHCPDISCOVER on sit0 to 255.255.255.255 port 67 interval 3

send_packet: Network is down

DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 5

receive_packet failed on sit0: Network is down

DHCPOFFER from 213.189.176.1

DHCPREQUEST on eth1 to 255.255.255.255 port 67

DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 6

DHCPDISCOVER on lo to 255.255.255.255 port 67 interval 4

DHCPDISCOVER on sit0 to 255.255.255.255 port 67 interval 8

send_packet: Network is down

.....and so on....

I had same problem some time ago with debian (not solved), but dhcpd worked with gentoo... and knoppix is running fine too (running it as we speak).

ifup eth1 ==> Determining IP information for eth1... done.

ifstatus ===> lo: not supported

sit0: not supported

eth0: not supported

eth1: link beat detected

INFO:

=====

System:

---------

P4 / ASUS P4P800 deluxe

eth0:

-----

Vendor: ?3Com Corporation

Bus: ?PCI

Bus identification: ?10b7:1700:1043:80eb

Location on the bus: ?2:5:0

Description: ?3C940 10/100/1000 LAN

Module: ?sk98lin

Media class: ?NETWORK_ETHERNET

eth1:

-----

Vendor: ?Realtek

Bus: ?PCI

Bus identification: ?10ec:8139:16ec:ff

Location on the bus: ?2:b:0

Description: ?RTL-8139

Module: ?8139too

Media class: ?NETWORK_ETHERNET

ifconfig:

--------

eth0 Link encap:Ethernet HWaddr 00:0C:6E:64:14:EF

inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

RX packets:0 errors:0 dropped:0 overruns:0 frame:0

TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

Interrupt:22 Memory:feaf8000-0

eth1 Link encap:Ethernet HWaddr 00:C0:49:D5:A2:DD

inet addr:213.189.179.97 Bcast:213.189.179.255 Mask:255.255.252.0

inet6 addr: fe80::2c0:49ff:fed5:a2dd/64 Scope:Link

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

RX packets:14 errors:0 dropped:0 overruns:0 frame:0

TX packets:40 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:1466 (1.4 Kb) TX bytes:4645 (4.5 Kb)

Interrupt:23 Base address:0xf400

lo Link encap:Local Loopback

inet addr:127.0.0.1 Mask:255.0.0.0

inet6 addr: ::1/128 Scope:Host

UP LOOPBACK RUNNING MTU:16436 Metric:1

RX packets:270 errors:0 dropped:0 overruns:0 frame:0

TX packets:270 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:0

RX bytes:22344 (21.8 Kb) TX bytes:22344 (21.8 Kb)

ifcfg-eth0:

-----------

DEVICE=eth0

BOOTPROTO=dhcp

ONBOOT=yes

ifcfg-eth1:

-----------

DEVICE=eth1

BOOTPROTO=dhcp

ONBOOT=yes

MII_NOT_SUPPORTED=no

NEEDHOSTNAME=yes

Can anyone help?

Thx in advance

Edit: moved from Installing Mandrake by spinynorman

Gowator · May 11, 2004

I think its becuase of the order they are being set.

knoppix works because you run the pppoe-conf script last and it sets default route to the cable connection on eth1

what is your default route (well what does

route

say)

nobody · May 11, 2004

I just tried switchign cable to my eth0 but no reaction, also no lamp swithches on when i plug in ...

route output :

Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface

192.168.0.0 * 255.255.255.0 U 0 0 0 eth0

213.189.176.0 * 255.255.252.0 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

nobody · May 11, 2004

hmm code seems better for display (i can't edit my posts here?)

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.0.0     *               255.255.255.0   U     0      0        0 eth0
213.189.176.0   *               255.255.252.0   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

Gowator · May 11, 2004

yep so a temp fix is

route del default

route add default gw 213.189.176.0

nobody · May 11, 2004

yep so a temp fix is
route del default

route add default gw 213.189.176.0

:( no succes :(

# route del default
# route add default gw 213.189.176.0
SIOCADDRT: Network is unreachable
# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
213.189.176.0   *               255.255.252.0   U     0      0        0 eth1
127.0.0.0

nobody · May 11, 2004

knoppix output

# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
213.189.176.0   *               255.255.252.0   U     0      0        0 eth0
default         213.189.176.1.b 0.0.0.0

Gowator · May 11, 2004

sorry

repeat (delete the default again with)

route del default

then

route add default 213.189.176.1

nobody · May 11, 2004

sorry
repeat (delete the default again with)

route del default

then

route add default 213.189.176.1

THANK YOU! It's working...

Is this setting being saved now or do i have to add to an init script or something else?

Sarissi · May 11, 2004

Before you go moving the Cable connection to the NIC: Turn OFF the Cable Modem and leave it off for at least 5 minutes. This will Clear the MAC in the cable modem.

I learned this one the hard way. Called the cable ISP and asked.

nobody · May 11, 2004

Before you go moving the Cable connection to the NIC: Turn OFF the Cable Modem and leave it off for at least 5 minutes. This will Clear the MAC in the cable modem.

I learned this one the hard way. Called the cable ISP and asked.

i know i had to do that a few times for gettin knoppix online...

nobody · May 11, 2004

but its easier to relaese ip with:

linux:

 ifdown <device>

for ex.

 ifdown eth0

windows:

 ipconfig /release

Gowator · May 11, 2004

nope its still cached in the cable modem....

you can either swap them over ..... OR

you need to edit /etc/init.d/network points to the /etc/sysconfig/networking

and change the order of eth0 and eth1 i.e its presently doing lo0, etrh0, eth1 and you want lo0, eth1, eth0 so that eth0 gets the last dhcp and then automatically over writes the resolv.conf and routes....

Or you can make a script to just redo it after.....

(not neat but works)

nobody · May 11, 2004

what if change /etc/sysconfig/network

now its:

HOSTNAME=chief
NETWORKING=yes
GATEWAYDEV=eth0

and would like to try and change it to:

HOSTNAME=chief
NETWORKING=yes
GATEWAYDEV=eth1

nobody · May 11, 2004

what if change /etc/sysconfig/network

now its:
HOSTNAME=chief
NETWORKING=yes
GATEWAYDEV=eth0
and would like to try and change it to:
HOSTNAME=chief
NETWORKING=yes
GATEWAYDEV=eth1

K that didn't work but eth0 and eth1 or not mentioned in /etc/init.d/network

dhcp client problems

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