From: kataka@hush.com
Date: Sat Jan 07 2006 - 10:47:54 EST
DSL was finally brought to where I live, and I have started
experimenting with discovery scans using Nmap.
The problem is, if I try and scan for more than 1024 ports on a
single host, my cheep-o Zoom DSL router/modem/switch/thingy starts
to flake out, in the sense I can’t ping my DSL router any more and
I loose connectivity to the Internet until I reset the router.
I believe this is because Nmap is filling up my router’s NAT pool
or something. I’ve looked at the config of the router and it’s only
got a 1024 connection NAPT port limit that cannot be adjusted and
timeouts measured in seconds as opposed to ms.
What should I do? Are other people with low-end DSL routers able to
overcome this problem? Should I look at getting a better router, if
so, what kind? Or, is it best to not scan through NAT and assign my
Internet Routable IP to my scanning box directly? If so, how would
this work under DSL, would I need to buy some kind of an Ethernet
to RJ-11 adapter card, configure routing, install PPP encapsulation
software on the box itself?
Concerned about your privacy? Instantly send FREE secure email, no account required
http://www.hushmail.com/send?l=480
Get the best prices on SSL certificates from Hushmail
https://www.hushssl.com?l=485
------------------------------------------------------------------------------
Audit your website security with Acunetix Web Vulnerability Scanner:
Hackers are concentrating their efforts on attacking applications on your
website. Up to 75% of cyber attacks are launched on shopping carts, forms,
login pages, dynamic content etc. Firewalls, SSL and locked-down servers are
futile against web application hacking. Check your website for vulnerabilities
to SQL injection, Cross site scripting and other web attacks before hackers do!
Download Trial at:
http://www.securityfocus.com/sponsor/pen-test_050831
-------------------------------------------------------------------------------
This archive was generated by hypermail 2.1.7 : Sat Apr 12 2008 - 10:55:19 EDT