Cell Relay Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] Re: security and ATM
Rui P. Coelho wrote: > > Hi, > > Robert R. Beliveau (robertbe@ngc.com) wrote: > > : Having a NIC with "promiscuous" abilities is required for either ATM or > : traditional LANs. The big difference is that ATM cannot operate on a > : broadcast media (although the BUS in LANE fwds to multiple ports) > > Yes it can. Think for example in wireless ATM on APON (ATM Passive > Optica Networks). In some cases, the terminal equipment is the last > responsible for the VPI/VCI filtering. > I cannot speak for other manufacturers ot ATM equipment, but this is exactly why our APON chips implement encryption at the physical layer itself. This is obviously needed when the tranmission path is intrinsically broadcast, but may also be applied in point to point if tapping is seen as a possible threat. -- ALC/\TEL | Marc Delvaux ALCATEL BELL Telephone dept VH11 / \ | Francis Wellesplein, 1 email : mdel@sh.bel.alcatel.be /____\ | 2018 Antwerpen Belgium phone : +32 (3) 240 88 02 TELECOM | bmemo : btmx.delvauxm fax : +32 (3) 240 99 47 |
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