ltpitt
asked on
Troubleshoot 3COM 3001 NBX ip_unknown problem
Hello my friends...
Things are getting pretty desperate here...
My 3001 NBX from 3com (R6_5_20) has been working perfectly for months... Now it works for more or less an hour and then all the phones in the branch offices (one connected in wi-fi, 1 km distance and others using adsl and vpn) go to ip_unknown and stop working. Phones in central office never stop working, anyway.
If I reset the nbx everything starts to work again but then after more or less an hour they're dead again. Even when I have the problem I'm able to ping branch offices and use applications without problems so it must be something related to the nbx or the astaro security gateway 7 that connects the wi fi bridge and lets vpn client reach our network. I just do not have diagnostic clues because from a "normal network" point of view the situation's normal.
Any hints about what I could do to find and solve the problem?
Things are getting pretty desperate here...
My 3001 NBX from 3com (R6_5_20) has been working perfectly for months... Now it works for more or less an hour and then all the phones in the branch offices (one connected in wi-fi, 1 km distance and others using adsl and vpn) go to ip_unknown and stop working. Phones in central office never stop working, anyway.
If I reset the nbx everything starts to work again but then after more or less an hour they're dead again. Even when I have the problem I'm able to ping branch offices and use applications without problems so it must be something related to the nbx or the astaro security gateway 7 that connects the wi fi bridge and lets vpn client reach our network. I just do not have diagnostic clues because from a "normal network" point of view the situation's normal.
Any hints about what I could do to find and solve the problem?
SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Yes. Exactly.
Did you try this? Did it work?
ASKER
Hello my friend!
I'm sorry for taking a little longer: the problem didn't show in a week.
Now it has come back and I've tried resetting the firewall instead of the nbx: no luck...
The phones remained in ip_unknown :(
Resetting the nbx took everything back to a working situation...
LAsting for more or less one hour: phone in our company never stopped working, anyway: just those in branch offices.
What could I check?
I'm sorry for taking a little longer: the problem didn't show in a week.
Now it has come back and I've tried resetting the firewall instead of the nbx: no luck...
The phones remained in ip_unknown :(
Resetting the nbx took everything back to a working situation...
LAsting for more or less one hour: phone in our company never stopped working, anyway: just those in branch offices.
What could I check?
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER
The answer from the other user pointed me in the right direction but it wasn't a detailed solution.
ASKER
So, if I've understood correctly, when my phones will go to ip_unknown instead of resetting my nbx I should reset my firewall, right?