LinuxQuestions.org

LinuxQuestions.org (/questions/)
-   Slackware (https://www.linuxquestions.org/questions/slackware-14/)
-   -   Strange dhcpcd Behaviour on Slack64 13 (https://www.linuxquestions.org/questions/slackware-14/strange-dhcpcd-behaviour-on-slack64-13-a-763835/)

MQMan 10-22-2009 06:33 PM
Strange dhcpcd Behaviour on Slack64 13
 
Firstly, let me say, that this isn't causing me any issues. Everything appears to be working fine, but it just looks a little strange to me.

Here's what I see in /var/log/message:
Code:
Oct 18 10:54:03 The-Tardis dhcpcd[3071]: eth0: leased 98.148.127.1 for 62812 seconds
Oct 18 10:54:03 The-Tardis dhcpcd[3071]: eth0: adding IP address 98.148.127.1/21
Oct 18 10:54:03 The-Tardis dhcpcd[3071]: eth0: adding default route via 98.148.120.1 metric 0
Oct 18 10:54:03 The-Tardis dhcpcd.sh: interface eth0 has been configured with old IP=98.148.127.1

Oct 18 19:37:29 The-Tardis dhcpcd[3071]: eth0: renewing lease of 98.148.127.1

Oct 19 02:10:05 The-Tardis dhcpcd[3071]: eth0: leased 98.148.127.1 for 62845 seconds
Oct 19 02:10:05 The-Tardis dhcpcd[3071]: eth0: adding IP address 98.148.127.1/21
Oct 19 02:10:05 The-Tardis dhcpcd[3071]: eth0: adding default route via 98.148.120.1 metric 0
Oct 19 02:10:05 The-Tardis dhcpcd.sh: interface eth0 has been configured with old IP=98.148.127.1

Oct 19 10:53:47 The-Tardis dhcpcd[3071]: eth0: renewing lease of 98.148.127.1

Oct 19 17:26:33 The-Tardis dhcpcd[3071]: eth0: leased 98.148.127.1 for 62834 seconds
Oct 19 17:26:33 The-Tardis dhcpcd[3071]: eth0: adding IP address 98.148.127.1/21
Oct 19 17:26:33 The-Tardis dhcpcd[3071]: eth0: adding default route via 98.148.120.1 metric 0
Oct 19 17:26:33 The-Tardis dhcpcd.sh: interface eth0 has been configured with old IP=98.148.127.1

Oct 20 02:10:10 The-Tardis dhcpcd[3071]: eth0: renewing lease of 98.148.127.1
And /var/log/syslog:
Code:
Oct 18 10:54:03 The-Tardis dhcpcd[3071]: eth0: lost lease, attemping to rebind

Oct 19 02:10:05 The-Tardis dhcpcd[3071]: eth0: lost lease, attemping to rebind

Oct 19 17:26:33 The-Tardis dhcpcd[3071]: eth0: lost lease, attemping to rebind
It looks like every other attempt, by the dhcpcd daemon, to renew the lease fails, and it has to rebind.

Is anyone else seeing this behaviour, or is it my cable ISP that's causing it.

Also, it appears my cableISP is forcing an MTU of 576.
Code:
eth0      Link encap:Ethernet  HWaddr 00:e0:81:57:0f:3e
          inet addr:98.148.127.1  Bcast:255.255.255.255  Mask:255.255.254.0
          UP BROADCAST RUNNING MULTICAST  MTU:576  Metric:1
          RX packets:1000027 errors:0 dropped:0 overruns:0 frame:0
          TX packets:601731 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:336199735 (320.6 MiB)  TX bytes:114616867 (109.3 MiB)
          Interrupt:20 Base address:0x2000
I've tried forcing a value of 1500, with /etc/rc.d/rc.inet1.conf, but it always gets clobbered back to 576.

Is this normal.
Cheers.

onebuck 10-23-2009 11:28 AM
Hi,

I don't know the type of cable modem that you are using but most have the means to 'nail' the IP assignment. You should should check your modem setup.

MQMan 10-23-2009 11:44 AM
Quote:
Originally Posted by onebuck (Post 3730014)
Hi,

I don't know the type of cable modem that you are using but most have the means to 'nail' the IP assignment. You should should check your modem setup.
I don't understand what you're saying.

The modem has no user settings at all. It's an Ambit.

Cheers.

manwichmakesameal 10-23-2009 11:57 AM
Your Ip address isn't going to get "nailed" in any way unless you have a commercial account and have a "sticky" ip. I'm not familiar with roadrunner, but your ip shouldn't change unless you connect a device with a different mac address to your modem. You can log into your ambit modem if you go to http://192.168.100.1. Depending on your model, user=root pass=root, or user=user pass=user. You can check logs in the modem there. Most of it won't help you unless you want to troubleshoot your connection (i.e. modem dropping off).


All times are GMT -5. The time now is 04:54 PM.