Simultaneous Ppp/Pptp Sessions; Supported Lan Protocols; Limitations - Alcatel speed touch home Advanced User's Manual

14.4.5

Simultaneous PPP/PPTP Sessions

14.4.6

Supported LAN Protocols

14.4.7

Limitations

Note
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Tunneling does not influence your local communication; you may
add as many machines as your local network supports. However
there is an upper limit to the number of simultaneous outbound
connections.
Unlike Bridging, an ATM/PPP channel cannot be shared by
multiple users. Every user establishing a tunnel requires one ATM
virtual channel. Therefore, any user on the local network can
initiate tunnels as long as there are idle ATM channels.
By default, the Speed Touch Home supports four simultaneous
PPP/ATM channels. The STHome is however capable of managing
up to 12 simultaneous PPP/ATM channels. This can be done
by deleting all other packet service entries in the Phonebook.
If all PPP/ATM channels are in use and a user tries to set up a new
tunnel, the STHome will refuse the request and an error message
will appear.
All forms of protocol can be transported within PPTP tunnels.
It is the PPTP client, however, which is the limiting factor. Some
OSs allow only specific protocols to be transported within PPTP
tunnels (e.g. TCP/IP , IPX/SPX or NETBEUI in the case of Window
95/98).
Below are some known limitations of the most popular platforms
currently in use:
One Tunnel
"
Windows 95/98 only allows you to set up one tunnel at a
time. This means that you cannot connect to both your ISP and
your Corporate Headquarters simultaneously from one PC.
Tunneling within a Tunnel
"
Tunneling within a tunnel is not possible with Windows 95/98
due to its single tunnel limitation.
Windows NT does not share these two limitations.
It is possible to set up multiple tunnels and are consequently able
to simultaneously connect to multiple remote destinations. A tunnel
within a tunnel is also possible, assuring better end to end
security.
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