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SonicWall Firewall rules don't seem to take affect until after i reboot the device

Posted on 2010-11-22
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Last Modified: 2012-05-10
We are running a SonicWall Pro 3060 with the Enhanced OS. When I create a firewall rule to block certain traffic, those connections still show as active in the connections monitor for quite a while before they drop off. It will be 30 minutes before they all disappear. Any way to make that happen without rebooting the device?
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Question by:crdixon
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Expert Comment

by:digitap
ID: 34193384
i've not heard of that before, but flushing the arp table would net the same as restarting the sonicwall.  i'm sure this has been adressed, but have you updated the firmware?
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Expert Comment

by:digitap
ID: 34193417
question: what kind of swith are your computers connected to?  if you disconnect everything, connect your  computer directly to X0, make a change to the sonicwall...does the change happen immediately?
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Expert Comment

by:DonConsolio
ID: 34193425

Try to flush the unwanted connections in Active Connections Monitor.
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getzjd earned 100 total points
ID: 34193480
Your firewall rules, are they still set at the default values of 15 minutes or did you change them to 30?  Not that should matter because SonicWall changes should take effect immediately.
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Assisted Solution

by:DonConsolio
DonConsolio earned 200 total points
ID: 34193565
I am no Sonicewall expert, but usually (at least for the firewalls i know) new rules
only affect new connections, while existing ones remain untouched.

Terminate the already established connections (Connection Monitor) or
reboot the firewall (i.e. terminate all connections)
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by:digitap
digitap earned 200 total points
ID: 34193630
my experience with the sonicwall is the rules take afeect immediately.
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Assisted Solution

by:DonConsolio
DonConsolio earned 200 total points
ID: 34193691
They immediately do affect new connections, but i doubt that existing ones are affected.
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Assisted Solution

by:digitap
digitap earned 200 total points
ID: 34194131
Being uncertain myself, i loaded up a pro 3060 and ran a continuous ping to 74.125.227.50 (one of the www.google.com IPs).  i then setup a rule to deny LAN > WAN from Any Source and 74.125.227.50 as the destination.  as soon as i clicked OK to create the rule, my ping failed.
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Author Comment

by:crdixon
ID: 34327177
I swapped this deviced out with an NSA240 with the secuity suite. The "Flush" option now appears on this box and the updated software subscrition seems to have fixed all my woes.
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Expert Comment

by:digitap
ID: 34327247
great...glad things worked out.  thanks for the points!
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