I agree with @William Suffill mentioned. very good advise. Because putting third party router in front of your FS switch will put your back to NAT issues.

So, putting iptables as suggested can protect + keep the voice quality stable.

Thanks  & Regards


On Tue, Oct 5, 2010 at 8:55 PM, Mario <mario_fs@mgtech.com> wrote:
After working 4 hours I found that FS was hosed due to someone from
208.109.87.234 sending tons of traffic to FS. I blocked the IP address.
Not only did it overload the connection but stopped FS from working,
meaning no phones. This had not happened with the SPA9000. I listed on
on a FS conference call discussing this issue. Is there someplace that
has a list of things to do to prevent/reduce this? I did have ports,
etc. blocked in the firewall. Thanks. Mario

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