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RH 8.0 & networking problems

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Ice-9:
The pc is connected to a Motorola Cable modem.
I didn't try to disconnect it, what would be the advantage of doing that? Clearing the cache?

Assigning a static IP address could do the trick though, my second nic activated without any problem when I assigned a fixed IP address to it
(192.168.1.1 on 255.255.255.0) but I can't try that until I get home tonight.

But then again, I receive a dynamic IP address from my provider, sometimes it stays for more than a week, other times it changes every couple of days, depending on the traffic, so that would leave me in the cold whenever the isp decides to change my ip wouldn't it?

voidmain:

quote:Originally posted by Ice9:
The pc is connected to a Motorola Cable modem.
I didn't try to disconnect it, what would be the advantage of doing that? Clearing the cache?

--- End quote ---


Yes, the "arp cache". It maps MAC addresses to IP addresses. I see this type of problems on big routers from time to time as well. But on those you can give a command to clear the arp cache.

 
quote:
Assigning a static IP address could do the trick though, my second nic activated without any problem when I assigned a fixed IP address to it
(192.168.1.1 on 255.255.255.0) but I can't try that until I get home tonight.

--- End quote ---


Uh, 2nd NIC? I thought I asked if you had two. It is very possible that RedHat has the interface names eth0 and eth1 reversed from what you had in Mandrake and older RedHat. Also turn off iptables before messing with it again. And do try resetting your DSL modem.

 
quote:
But then again, I receive a dynamic IP address from my provider, sometimes it stays for more than a week, other times it changes every couple of days, depending on the traffic, so that would leave me in the cold whenever the isp decides to change my ip wouldn't it?
--- End quote ---


Nope. Once you get assigned an address it should no longer be a problem. Clearing the internal arp cache can fix this sort of problem (won't swear that it will fix *this* problem, but problems like it). And if none of this leads to a solution then I'm about pooped out on this one. I do believe if I had the machine in front of me I could figure it out in a minute or two. It *has* to be something simple we're overlooking.

Ice-9:

quote: Uh, 2nd NIC? I thought I asked if you had two. It is very possible that RedHat has the interface names eth0 and eth1 reversed from what you had in Mandrake and older RedHat. Also turn off iptables before messing with it again. And do try resetting your DSL modem.

--- End quote ---


I messed around with this too, disabling Eth0 and trying to set up Eth1, same result, from the moment I set it to "Obtain ip through DHCP" I can't set it to active, once I assign a static ip to it, no prob.

 
quote: Nope. Once you get assigned an address it should no longer be a problem. Clearing the internal arp cache can fix this sort of problem (won't swear that it will fix *this* problem, but problems like it). And if none of this leads to a solution then I'm about pooped out on this one. I do believe if I had the machine in front of me I could figure it out in a minute or two. It *has* to be something simple we're overlooking.

--- End quote ---


Wait a minute, if I can catch my plane I could be there in about an hour or 12, if you can fix my machine I could be back in a little more than 30 hours I guess   :D

voidmain:
Hey, I've been to Belgium, nice place. You could just fly me there. I would make a rare house call in this particular case.    One final question. You are positive that your provider uses DHCP and not PPPoE right?

[ November 26, 2002: Message edited by: void main ]

Ice-9:
I thought PPPoE was for A(x)DSL only and cable always used DHCP?

And erm, just out of curiosity, what time is it right now where you live?
If you're in the same timezone than the server that hosts these forums ......  ;)

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