Re: IP Spoofing/Masquarading

["R. DuFresne" <dufresne () sysinfo com>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1



Actually, it is sometimes amazing to see how far such packets will get 
across the internet at large.  routers need to be setup to specifically 
prevent this, they are not really designed to do so by default.  Unless the 
IOS has changed dramatically over the past few years whence I have not had 
to  play with them much.  This statement should be corrected to;

 Private IPs (as per RFS 1918) should not be openly routed over internet.


Thanks,

Ron DuFresne


On Wed, 9 Sep 2009, aditya mukadam wrote:

> Private IPs (as per RFS 1918) cannot be routed over internet.
>
> Thanks,
> Aditya Govind Mukadam
>
>
> On Wed, Sep 9, 2009 at 11:49 AM, M.D.Mufambisi <mufambisi () gmail com> wrote:
> > I understand that IP packets can be spoofed ie change the source
> > address to make it look like they originated from the internal LAN.
> > However, when this is done across the internet, with a private IP
> > address in its source field, how does this packet get routed through
> > the internet?
> >
> > Kind Regards
> >
> > ------------------------------------------------------------------------
> > This list is sponsored by: Information Assurance Certification Review Board
> >
> > Prove to peers and potential employers without a doubt that you can actually do a proper penetration test. IACRB CPT 
> > and CEPT certs require a full practical examination in order to become certified.
> >
> > http://www.iacertification.org
> > ------------------------------------------------------------------------
>
> ------------------------------------------------------------------------
> This list is sponsored by: Information Assurance Certification Review Board
>
> Prove to peers and potential employers without a doubt that you can actually do a proper penetration test. IACRB CPT 
> and CEPT certs require a full practical examination in order to become certified.
>
> http://www.iacertification.org
> ------------------------------------------------------------------------

- -- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        admin & senior security consultant:  sysinfo.com
                        http://sysinfo.com
Key fingerprint = 9401 4B13 B918 164C 647A  E838 B2DF AFCC 94B0 6629

These things happened. They were glorious and they changed the world...,
and then we fucked up the endgame.    --Charlie Wilson
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.5 (GNU/Linux)

iD8DBQFKp/8pst+vzJSwZikRAjBtAKDBJ6UgYk59Og76dTJ+m4IXgEqMBgCfYJeA
t4VSYxBFXOsPbru3rPlLshE=
=HwqI
-----END PGP SIGNATURE-----

------------------------------------------------------------------------
This list is sponsored by: Information Assurance Certification Review Board

Prove to peers and potential employers without a doubt that you can actually do a proper penetration test. IACRB CPT and CEPT certs require a full practical examination in order to become certified. 

http://www.iacertification.org
------------------------------------------------------------------------