home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
ftp.ee.pdx.edu
/
2014.02.ftp.ee.pdx.edu.tar
/
ftp.ee.pdx.edu
/
pub
/
mobile
/
mip-summer98.BLURB
< prev
next >
Wrap
Text File
|
1998-08-04
|
3KB
|
57 lines
Portland State University's newest release of Mobile IP for FreeBSD is now
available. This release adds various features to the previous summer
1997 release.
Mobile IP is a network protocol that allows hosts ("mobile nodes") to
change their point of Internet connectivity without having to change their
IP address.
ftp://ftp.cs.pdx.edu/pub/mobile/mip-summer98.tar.gz contains the release. It
includes kernel sources based on FreeBSD 2.2.1 and PAO-970331, including
ISA and PCMCIA WaveLAN drivers, source code for Mobile IP utilities and
daemons, and binaries of all the user-level programs.
Portions of the release are export controlled. They can only be downloaded
by filling out a form at http://web.mit.edu/network/isakmp/isakmpform.html
and by downloading the code from MIT.
New in this release:
* HARP - the Home Agent Redundancy Protocol allows two Mobile-IP
Home Agent systems to act redundantly and in parallel thus curing the
Mobile-IP single point of failure problem due to Home Agent failure.
* MADRP - An experimental multi-hop routing protocol that is
integrated with Mobile-IP and allows Mobile Nodes to setup routing
across other Mobile Nodes.
* DHCP/IPSEC - Mobile Nodes can use DHCP server/links and can do
this with IPSEC support for talking to/from the Home Agent.
Noteworthy properties of PSU's implementation in general:
* Foreign agent switching based on WaveLAN signal strength (other link
layer technologies are supported, but switching is less intelligent).
* An optional replacement for ARP called "ad hoc" mode that eliminates
ARP spoofing attacks. In this mode, logical networks are defined by a
shared secret key, and every host regularly broadcasts its MAC->IP address
binding. This mode also permit mobile nodes to communicate with each other
directly, even if no foreign or home agents can be accessed.
* Minimal kernel changes that provide basic, general-purpose mechanisms
upon which Mobile IP daemons are implemented.
* Foreign agents can have mobile security associations with both mobile
nodes and home agents, as described in the RFC.
* X-based user interface to monitor and control the mobile node.
* Both multicast and broadcast agent advertisements.
* ISA and PCMCIA WaveLAN drivers and applications to configure them.
* NRL's IPSEC, ported to FreeBSD, with extensions to allow IPSEC security
associations to be bound to routes. This allows virtual private networks
(VPNs) to be created by simply configuring the routing table appropriately.