[NTLUG:Discuss] Cable Modem Blues

[Randall Gibson]

My parents cable modem did a very similar activity. It would disconnect
them every now and again, thiers eventually came back on without any
intervention, for awhile. Eventually Cable company gave them a new IP, and
all has been well for them since.
	Basically, I am trying to say is do you think it is a Linux problem
?? Re-setting cable modem to fix it sounds like modem problem. Or its
configuration. Did this setup work fine under Windows, and problem started
when you installed Linux ??
	I used to have a network card that died on me after about 2 weeks.
I was able to shut it down, then re-start it, and it would work for another
2 weeks. Got tired of that and finally re-placed it.
	My scripts for setting up the network card is located at:
/etc/init.d/network and has 2 lines:
ifconfig eth0 192.168.0.1 netmask 255.255.255.0 up
ifconfig lo 127.0.0.1

so, if i wanted to re-start network card, I would do:
ifconfig eth0 down
rmmod tulip
insmod tulip
ifconfig eth0 192.168.0.1 netmask 255.255.255.0 up
Of course your network card and setup is different, and might not be built
as a module....
Also, my system is debian, so your scripts may be in a different location.

Randall Gibson

On 2001.08.15 15:18 Patrick Parks wrote:
> Hello again, I have been doing some serious digging into some of the log 
> files I am discovering to have and have some questions. This is in 
> reference to the last posts that I made about the cable modem problem I 
> am having. I am viewing this route command, and it does not look right to
> 
> me. My gateway is 65.10.20.1, my netmask is 255.255.255.0 should these 
> two be on the same line under eth0? I do not know where to go to change 
> this, so any pointers would be helpful. I also am looking for a log file 
> that will tell me what is happening when I lose my connection. I did a 
> ping -f www today, and lost the connection, but I dont know where to look
> 
> and see what is actually happening. Is there a log file that will give me
> 
> this information? Below you will find the rsults of a ping -f I did, when
> 
> it got about ¼ through it, I lost the connection, and I also included a 
> ifconfig to show what it is telling me. I will send some more log files, 
> but I want to keep the size of the e-mail down so that it goes through 
> the server. Thanks for any help!
> 
> [pparks at C1652034-d pparks]$ /sbin/route -n
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags Metric Ref    Use 
> Iface
> 65.10.20.0      0.0.0.0         255.255.255.0   U     0      0        0 
> eth0
> 127.0.0.0       0.0.0.0         255.0.0.0       U     0      0        0 
> lo
> 0.0.0.0         65.10.20.1      0.0.0.0         UG    0      0        0 
> eth0
> 
> [root at C1652034-d pparks]# ping -f www.patrickparks.com
> PING www.patrickparks.com (209.132.66.77) from 65.10.20.92 : 56(84) bytes
> 
> of data.
> ........................................................................
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> ....
> --- www.patrickparks.com ping statistics ---
> 5352 packets transmitted, 4268 packets received, 20% packet loss
> round-trip min/avg/max/mdev = 36.342/200.543/377.993/95.087 ms
> 
> [root at C1652034-d pparks]# /sbin/ifconfig
> eth0      Link encap:Ethernet  HWaddr 00:E0:98:8D:CF:DB  
>           inet addr:65.10.20.92  Bcast:65.10.20.255  Mask:255.255.255.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:8755 errors:0 dropped:0 overruns:0 frame:51
>           TX packets:5458 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:459 txqueuelen:100 
>           Interrupt:3 Base address:0x300 
> 
> lo        Link encap:Local Loopback  
>           inet addr:127.0.0.1  Mask:255.0.0.0
>           UP LOOPBACK RUNNING  MTU:16436  Metric:1
>           RX packets:6 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0 
> 
> 
> Patrick Parks
> www.patrickparks.com
> patrick at patrickparks.com
> 972.416.8377 (Home)
> 972.354.7712 (Fax)
> 504.723.6460 (Cell)
> "May the SOURCE be with GNU"
>