I am keep getting this messege from IDS-4235

Posted on 2008-11-17
Last Modified: 2013-11-29
I am keep getting this error from IDS 4235  with high alert.
Ip Localhost source spoof

Question by:VIJAY2766
    1 Comment
    LVL 12

    Accepted Solution

    The alert indicates the firewall's seen traffic with a source address of 127.x.x.x. Usually, this is someone trying to exploit local host rules on the firewall.

    The firewall's correctly blocking the traffic. If it's appearing on an internal interface, you should check the MAC address and track down the culprit.

    If it's happening on the external interface, you should pass this info on to your ISP, since they shouldn't be routing this traffic to you.

    If it's happening on a wireless interface, lock down access (WPA2). If that's already done and you're using a pre-shared key, it's been compromised.

    In all cases, the firewall's doing its thing and blocking the traffic.

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