[asterisk-biz] IP Spoofing - Brute Force Attack Prevention

[Kevin P. Fleming]

Cyriaz at Gmail.com wrote:
> Does it require to write firewall rules? how can I write a firewall rule
> to block IP Spoofing

It is not possible to block IP spoofing, except for IPs that exist on
the inside of your firewall. If the source IP is outside your firewall,
it is not possible to know whether it originated from the proper owner
of that IP or whether it was spoofed.

-- 
Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
skype: kpfleming | jabber: kpfleming at digium.com
Check us out at www.digium.com & www.asterisk.org