LFT - Layer Four Traceroute?

Richard A Steenbergen ras at e-gerbil.net
Thu May 15 18:21:09 UTC 2003

On Thu, May 15, 2003 at 02:01:05PM -0400, Russ Haynal wrote:
> hello,
> I have read about the LFT Tool at the following web page:
>    http://www.mainnerve.com/lft/
> It looks like this traceroute might succeed where traditional UDP 
> Traceroutes fail.

You mean kinda like the dozens of other tools that have included TCP or 
ICMP based traceroute over the past many years?


> Does anybody know of any publicly accessible traceroute servers which are 
> running LFT in the background?

Why? It's probably only useful for getting around trivial firewalls if you
can tune the port that you're trying to get through on. With the number of 
abuse complaints generated by "you're sending me data on port 80", I'm not 
sure any sane person would want to leave a tool which sends TCP open to 
the public anyways.

Richard A Steenbergen <ras at e-gerbil.net>       http://www.e-gerbil.net/ras
GPG Key ID: 0xF8B12CBC (7535 7F59 8204 ED1F CC1C 53AF 4C41 5ECA F8B1 2CBC)

More information about the NANOG mailing list