19. remote: Pecularities of the remote ISDN device

19.1 remote_win95: How do I configure Windows95 to dial successfully into my isdn4linux computer?

Configure your dialout network like this:

• Type of server: PPP:Windows 95, Windows NT 3.5, Internet
• Extended options: unselect all options
• Network protocolls: only select TCP/IP
• Standard gateway
• Switch off IP header compression for the beginning (for more details on compression with ipppd see question syncppp_compression).
• Remainder of TCP/IP stuff (ip address, nameserver,...) as applies to you.

19.2 remote_mac: I'd like to exchange data with a Macintosh (Leonardo card), what do I or the Mac user have to watch out for?

Currently, the Leonardo protocol is not supported by i4l. When you call the Mac, he should set the protocol to X.75 or HDLC. When he calls you, he must explicitly set the protocol (e.g. by inserting an "X" for X.75) in the called number.

19.3 remote_macpap: A Macintosh with a Leonardo card tries to call in, and wants to negotiate chap md5. How can I switch it to CHAP/PAP?

You can't. The user should use LeoPort (always included with the card) and switch the CTB port to the ISDN card. Then with FreePPP 2.5v2 http://www.rockstar.com set the Leo as the modem and configure FreePPP as usual. Then PAP/CHAP can be set.

19.4 remote_cisco: How does isdn4linux work with a Cisco (HDLC) on the other side?

On the Cisco router the "keep alive" packets have to be turned off. isdn4linux has to be configured with HDLC, transparent, with Cisco encapsulation:

isdnctrl l2_prot <interface> hdlc
isdnctrl l3_prot <interface> trans
isdnctrl encap <interface> cisco-h

19.5 remote_ispa: What settings does ISPA etc. (DOS, Windows) need to work with the standard settings of isdn4linux?

The following configurations are possible (these also apply to the other drivers from H. Hanewinkel, i.e. CINDI, CANDI, WISPA...) that can be found via http://www.informatik.uni-bremen.de/~henker/dank

i4l side                             ISPA side
====================================================
isdnctrl l2_prot isdn0 hdlc           \
isdnctrl l3_prot isdn0 trans              -h0
isdnctrl encap   isdn0 rawip          /
----------------------------------------------------
isdnctrl l2_prot isdn0 hdlc           \
isdnctrl l3_prot isdn0 trans              -h1
isdnctrl encap   isdn0 uihdlc         /
----------------------------------------------------
isdnctrl l2_prot isdn0 x75i           \
isdnctrl l3_prot isdn0 trans              -l0
isdnctrl encap   isdn0 rawip          /
----------------------------------------------------
isdnctrl l2_prot isdn0 x75i           \
isdnctrl l3_prot isdn0 trans              -l1
isdnctrl encap   isdn0 uihdlc         /
----------------------------------------------------