KernelTrap - FreeBSD

Dummynet Issue

Tue, 07 Jul 2009 16:01:31 +0000

Hi,

I'm having intermittent issues with my implementation of Dummynet.

I've got two FreeBSD 7.0 systems running an IPSec/Racoon VPN which runs stably. On one BSD box, I've set up a dummynet pipe to limit the amount of traffic going across my gif tunnel.

eg.
ipfw pipe 1 config bw 300Kbit/s queue 80Kbytes
ipfw add pipe 1 all from any to any via gif0

Job Opening

Tue, 10 Mar 2009 00:40:23 +0000

I have a client who is looking for a Sr Kernel engineer with 3+ years of coding exp with Freebsd,IP stack and MIPS...

Please let me know if you know anyone who would be interested.

Tony 408-345-9100 ext 103 tony@s-aassociates.com

Packet Replay Check

brdfld — Wed, 17 Dec 2008 20:06:13 +0000

I've got a FreeBSD setup running with three IPSec tunnels (these were created following the official FreeBSD documentation).

The three links have been running fine for many months now, however, I'm regularly getting entries in my /var/log/messages file stating "kernel: esp_input: packet replay check for SA(SPI= src= dst=)".

ICMP unreached

nima0102 — Wed, 17 Dec 2008 07:39:16 +0000

Hi everybody
on my freebsd server, bind keep dieing.
i looked in the messages log and i see:

Limiting icmp unreach response from 224 to 200 packets per second
Limiting icmp unreach response from 246 to 200 packets per second
Limiting icmp unreach response from 226 to 200 packets per second
Limiting icmp unreach response from 253 to 200 packets per second

sending a UDP packet from a kernel module

fernercc — Tue, 16 Dec 2008 17:00:40 +0000

Hello everyone. I am interested in knowing how to send a UDP packet from a kernel module.

I have done some research and found functions such as udp_output() and various functions in pcap.h but i can't seem to get it.

Can anyone please help me?

Thanks :)