bandwidth usage

bandwidth usage

[Rohan Almeida]

Hi List,
How do i get the bandwidth usage of a particular IP address, on
a m/c which is performing NAT?
can i use netstat? or maybe iptables?
Is there any tool available.
I tried iptraf, but its too much informative for me.
I just need to show current bandwdith usage
for 1 or more ips

Thanx,

--
arc_of_descent

Re: bandwidth usage

[Antony Stone]

On Monday 08 July 2002 11:56 am, Rohan Almeida wrote:

> Hi List,
> How do i get the bandwidth usage of a particular IP address, on a m/c which
> is performing NAT?
> Can i use netstat? or maybe iptables?
> Is there any tool available.
> I tried iptraf, but its too much informative for me.   I just need to show
> current bandwdith usage for 1 or more ips

Netfilter will help you track the number of packets & bytes sent to/from a 
specific IP address, but you'll have to check the numbers at regular 
intervals (eg a cron job once a minute ?) in order to convert this to 
bandwidth.

Just create some rules such as:

iptables -A FORWARD -s a.b.c.d
iptables -A FORWARD -d a.b.c.d

(Yes, that's correct, you don't have to have a target to jump to if you don't 
want one...)

where a.b.c.d is the IP address you're interested in, and then use

iptables -L FORWARD -n -v -x

to see the packet & byte counters.

 

Antony.