Communication issue between my TFTP and my Cisco router
Anuuspopulos
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brupala Posted messages 111938 Registration date Status Membre Last intervention -
brupala Posted messages 111938 Registration date Status Membre Last intervention -
Hello everyone,
So here it is, I've been grappling with a problem that makes no sense for a week now...
I'm in a work-study program in an IT field at a Telecom company. A week ago, I had a "Router Training," and everything went really well.
But the next day, when I wanted to try again on my own, I ran into some hassles with COM1 port issues, which I quickly resolved. But the problem I have now is that when I'm in my router and I want to send it a new IOS or a new client configuration, my router and my TFTP are not communicating and I get a TIME-OUT error message.
I can't seem to find the solution, and it's really bothering me professionally...
If someone could help me, I would be very grateful!!!
So here it is, I've been grappling with a problem that makes no sense for a week now...
I'm in a work-study program in an IT field at a Telecom company. A week ago, I had a "Router Training," and everything went really well.
But the next day, when I wanted to try again on my own, I ran into some hassles with COM1 port issues, which I quickly resolved. But the problem I have now is that when I'm in my router and I want to send it a new IOS or a new client configuration, my router and my TFTP are not communicating and I get a TIME-OUT error message.
I can't seem to find the solution, and it's really bothering me professionally...
If someone could help me, I would be very grateful!!!
Later (two days ago), my trainer sent me a procedure to achieve that and it works.
However, when I type the command copy tftp flash, it then returns Time-Out.
Normally, on the router I am currently working on, I should overwrite what is already in the configuration, but I want to wait for the error message that tells me there’s no space, not the one that says the timeout has been exceeded.
If I overwrite the configuration but can't re-inject it, I'll be in trouble...
If you are working on a production router, you need to stop immediately and use a non-operational router on the bench for your student manipulations.
If you still have a firewall between the router and your PC, it is quite likely that while ping (ICMP) is now allowed, TFTP (BOOTP) may not be.
You need a PC directly connected to the router for that (and to check if there are any access-lists filtering).
To do this on an operational network, you need to have complete control over everything, otherwise a disaster for the users is on the horizon.
In any case, you back up the nvram config to flash:
copy start flash:config-ok
For the IOS, it's even riskier, but as long as there is space in flash and you don't reboot, the risk is more limited.
Finally, and always, if you're not sure of yourself, do not reboot until you have verified the IOS and the config, and above all, do not delete any files.
I'll stop you right there.
My router is not in production, it's specifically dedicated to learning. Moreover, not only do your warnings slightly irritate me (it sounds too much like "I am superior"), but you are also not teaching me anything since I already know everything you are telling me. I remind you that my problem is limited to my TFTP server that does not see my connection at all.
If I am asking the question on this site, it's to get answers that could, even just a little bit, help me move forward in resolving my problem.
Though I am a student, I'm not 14 years old and I am already in my second Bac+2.
Anyway.
My instructor is stuck on this problem and is talking to me about two other connections on my card: VMware Network Adapter VMnet1 / VMware Network Adapter VMnet8 .
These connections are "apparently" the source of the problem.
A problem that could be resolved by disabling them, but whenever I do, they reactivate by themselves after two minutes. He hasn't found a solution for that either.
If this is indeed the problem, I would like to have the solution.
P.S: When I say my instructor, I mean the one in the company who comes in for the training of a group of people. Not just a teacher.
You took the liberty of deleting my message on another topic because apparently it was off-topic; based on your responses, I think that morally I could do the same.
Your other response was about a discussion that is five years old and completely off-topic, indeed.
I think you need to play it a bit more low-key; if I don't know your background, I’m not interested, but I can see quite clearly your level.
Moreover, if you are using virtual machines (VMware) and don't even know how to operate your PC, there's nothing we can do for you.
Now,
Either you return to a better acknowledgment of assistance, and provide all the useful information regarding the problem, rather than the useless ones, or your discussion goes down the drain without any mercy.
Start by testing with a server without a VM if you lack expertise.