Re: 56 kbps modems

At 10:41 AM 9/17/96 -0700, Eric Murray <ericm@lne.com> wrote:
Crypto/security related: how hard is it to hack a Frame Relay connection? My impression is that it requires access to one of the telco's routing computers, which would make it about equivalent in difficulty to hacking POTS.
Frame Relay doesn't get handled by the telco's POTS routing (unlike ISDN) - it's handled by whatever frame relay switch the telco uses. I don't know what Pac Bell uses; AT&T uses Stratacom switches, I think MCI uses Cascade, USWest uses a mixture. Frame switches mostly use Permanent Virtual Circuits, though Switched Virtual Circuits will be coming out in the next year or so. PVCs are pretty tough to hack, because they mostly get provisioned from an administrative interface on the switch rather than in-band. SVCs will offer a bit more risk, since switching is switching. But it's probably pretty tough. # Thanks; Bill # Bill Stewart, +1-415-442-2215 stewarts@ix.netcom.com # <A HREF="http://idiom.com/~wcs"> # You can get PGP software outside the US at ftp.ox.ac.uk/pub/crypto
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Bill Stewart