Hi,
tested this on my firewall running CP4.1 SP5 on RedHat 7.0 (2.2.19-7.0.12
RedHat) and the firewall gave no reaction at all to the scan.
Hardware is as follows:
CPU: P3-1Ghz
Motherboard: ASUS CUSL-2C
Memory: Original 256 CAS2
NIC's: 2xIntel Dual-Port Server Adapter. (Using RedHat default Intel100Pro
driver)
best regards.
//Claes Jansson
At 14:45 2001-11-13 -0500, you wrote:
>I'm testing out CP4.1 SP5 on Linux RH7.0. I seem to have gotten everything
>configured the way I want it and am starting to run some scans to see what I
>can see. Well, what I see is: nmap -sU -P0 ip_addr causes the machine to
>instantly crash with a kernel panic, or in some cases, reboot. I'm not
>great at troubleshooting kernel/module troubles so any help would be greatly
>appreciated. IF you happen to have a Linux CP FW-1 box you could run nmap
>against, I'd love to know your results (incl OS/kernel info). Might want to
>do this off-hours, though.
>
>Without CP-FW1 running (/etc/rc.d/init.d/firewall1 stop), I cannot cause a
>kernel panic with a UDP scan. Has anyone else noticed this behavior?
>
>Hardware:
>Dell Dimension XPSB800r
>128MB RAM
>3Com EtherLink III 3c905-TX (three of them)
>
>Have been able to reproduce this problem with kernels:
>2.2.19-7 (CUSTOM)
>2.2.16-20 (GENERIC RH 7.0)
>
>Tail end of the error message (after register & stack dump):
>Code: 8b 41 08 3d 2b 2f c3 a5 0f 85 c6 00 00 00 8b 41 0c 85 c0 74
>Aiee, killing interrupt handler
>Kernel panic: Attempted to kill the idle task!
>In swapper task - not syncing
>
>-Yanek.
>
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