Changes:
--------
2004-02-24:

- 2.6.3-bk has a new ISDN port which includes IPPP_FILTER.

2003-10-21:

- Probably should have been mentioned here earlier, the patch has been
  included in linux 2.4.22. 2.6 still needs someone to port it.

2003-09-05:

- fix missing "ippp-filter-compat.h" include file in isdn4kutils diff
- The isdn4linux guys didn't release new tarballs, the required code is only
  available by cvs. Therefore I put together an archive for download at
  http://ira.informatik.uni-freiburg.de/~mchardy/isdn4k-utils.v3.2p1+ippp-filter.tar.bz2

2003-06-03:

- Fix memory leak in ioctl error path
- rediffed against 2.4.21-rc6
- Include active-filter and pass-filter options in ipppd man page

Installation:
-------------

- Patch your kernel with linux-2.4.20_ippp-filter.diff
- select "PPP filtering for ISDN (CONFIG_IPPP_FILTER)
- compile and install

- patch isdn4k-utils with isdn4k-utils_ippp-filter.diff
- run autoconf in isdn4k-utils/ipppd
- run ./configure --enable-ippp-filter
- compile and install

ipppd now understands the pass-filter and active-filter options,
for usage see ipppd man page.


Copyright (c) 2002, 2003 Patrick McHardy, <kaber@trash.net>
Everything here is published under the terms of the GPL v2.