10-15-2009
It might be more efficient to alter the SNMP code to include the fields you want from the IP header in the SNMP info (is this an SNMP trap?)
That is what I would do since you more-than-likely have access to the Linux source code.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
How can i send a packet, and what is an empty packet? (8 Replies)
Discussion started by: Avatar0fEvil
8 Replies
2. Programming
I am working on a project, which has the following type of hardware setup.
A special hardware device is receiving data from an external network interface. So we can have multiple such a hardware devices. Now these hardware devices will route the captured incoming data through the external... (4 Replies)
Discussion started by: S.P.Prasad
4 Replies
3. IP Networking
there are a number of clients connected to a server.... how can i count that each clients recieve ...? how do i moniter the activity of the client..? (2 Replies)
Discussion started by: damn_bkb
2 Replies
4. UNIX for Advanced & Expert Users
I need to write a script that can find a bad record (for example: there is date field colom but value provided in the file for this field is N/A) then script shoud searches this pattern and then insert the whole record into the bad file.
Example:
File1
Name designation dateOfJoining... (1 Reply)
Discussion started by: shilendrajadon
1 Replies
5. Shell Programming and Scripting
I need to write a script that can find a bad record (for example: there is date field colom but value provided in the file for this field is N/A) then script shoud searches this pattern and then insert the whole record into the bad file.
Example:
File1
Name designation dateOfJoining... (2 Replies)
Discussion started by: shilendrajadon
2 Replies
6. Shell Programming and Scripting
Hello
I need to send some packets to check connection. Packets will be catch by snoop. Is there any Sun tool to send some packets on selected IP and Port?
Thx (1 Reply)
Discussion started by: miojamo
1 Replies
7. HP-UX
Hi there,
are there any functions that can get the packets statistics on UNIX ?
thanks. (2 Replies)
Discussion started by: Frank2004
2 Replies
8. IP Networking
I am trying to capture tcpdump for traffic to a port in a file but this does not seem to capture all the packets. Command I use is :
tcpdump -w tdump.dat port 22
Why is it not capturing all the packets ?
Here is my experiment:
root@pmode-client6 adc-demo]# tcpdump port 22
tcpdump:... (5 Replies)
Discussion started by: radiatejava
5 Replies
9. IP Networking
Hi guys,
I'm using a Linux system(Ubuntu) and I've been trying to find a method to read the total packets received/sent on a specific port (e.g port 80 or port 25) on a local machine. I can read the overall total packets received/sent from the /proc/net/dev file system. But what I can't do is... (2 Replies)
Discussion started by: lildee
2 Replies
10. Shell Programming and Scripting
Why I get bad replace when using eval?
$ map0=( "0" "0000" "0")
$ i=0
$ eval echo \${map$i}
0000
$ a=`eval echo \${map$i}` !!!error happens!!!
bash: ${map$i}: bad substitution
How to resolve it ?
Thanks! (5 Replies)
Discussion started by: 915086731
5 Replies
LEARN ABOUT FREEBSD
pflog
PFLOG(4) BSD Kernel Interfaces Manual PFLOG(4)
NAME
pflog -- packet filter logging interface
SYNOPSIS
device pflog
DESCRIPTION
The pflog interface is a device which makes visible all packets logged by the packet filter, pf(4). Logged packets can easily be monitored
in real time by invoking tcpdump(1) on the pflog interface, or stored to disk using pflogd(8).
The pflog0 interface is created automatically at boot if both pf(4) and pflogd(8) are enabled; further instances can be created using
ifconfig(8).
Each packet retrieved on this interface has a header associated with it of length PFLOG_HDRLEN. This header documents the address family,
interface name, rule number, reason, action, and direction of the packet that was logged. This structure, defined in <net/if_pflog.h> looks
like
struct pfloghdr {
u_int8_t length;
sa_family_t af;
u_int8_t action;
u_int8_t reason;
char ifname[IFNAMSIZ];
char ruleset[PF_RULESET_NAME_SIZE];
u_int32_t rulenr;
u_int32_t subrulenr;
uid_t uid;
pid_t pid;
uid_t rule_uid;
pid_t rule_pid;
u_int8_t dir;
u_int8_t pad[3];
};
EXAMPLES
Create a pflog interface and monitor all packets logged on it:
# ifconfig pflog1 up
# tcpdump -n -e -ttt -i pflog1
SEE ALSO
tcpdump(1), inet(4), inet6(4), netintro(4), pf(4), ifconfig(8), pflogd(8)
HISTORY
The pflog device first appeared in OpenBSD 3.0.
BSD
May 31, 2007 BSD