Some peers seem to be sending no such option. The rfc says in that case
to try to send an option with a suggested value. Don't insist on it
however if the peer still doesn't send any.
That can fix IPv6 for some peers.
The RFC indeed say that we should send them periodically. We were
previously only sending them along LCP echo replies, but echo requests
are typically sent only when there is no trafic, which RA need to be
sent even when there is trafic.
It seems at least some products send this:
{LCP (0xc021), length 12: LCP, Conf-Nack (0x03), id 9, length 10
encoded length 8 (=Option(s) length 4)
0x0000: c021 0309 0008
Auth-Prot Option (0x03), length 4: CHAP[|lcp]}
If we refuse to nack to CHAP, we'd stay stuck with PAP and eventually
get a reject.
thanks. Changes:
- Handle session shutdown gracefully regarding leaving the bundle (bug that is
caused when a all session leaves a bundle then another join)
- IP assignment is done only for the first session in the bundle (save IP
waste for multiple MLPPP sessions)
- Route is being added only for the first session in the bundle (less routes
on l2tpns system)
- Fix route deletion problem for MLPPP sessions (bug that caused when a
session leaves a bundle)
- Uniformity of sequence number space satisfied (according to RFC1990)
- Fix reassembling fragmented packets and handling lost fragments (according
to RFC 1990)
- FragmentatConnection to l2tpns.cvs.sourceforge.net closed by remote host.n
across N session rather than two)
- Sequence numbers extraction mask has been corrected (bug in extracting
sequence numbers)
- some clustering support fixes
- Upload/Download statistics has been corrected
- add "kill_timedout_sessions" config option
thanks. Changes:
- Handle session shutdown gracefully regarding leaving the bundle (bug that is
caused when a all session leaves a bundle then another join)
- IP assignment is done only for the first session in the bundle (save IP
waste for multiple MLPPP sessions)
- Route is being added only for the first session in the bundle (less routes
on l2tpns system)
- Fix route deletion problem for MLPPP sessions (bug that caused when a
session leaves a bundle)
- Uniformity of sequence number space satisfied (according to RFC1990)
- Fix reassembling fragmented packets and handling lost fragments (according
to RFC 1990)
- FragmentatConnection to l2tpns.cvs.sourceforge.net closed by remote host.n
across N session rather than two)
- Sequence numbers extraction mask has been corrected (bug in extracting
sequence numbers)
- some clustering support fixes
- Upload/Download statistics has been corrected
- add "kill_timedout_sessions" config option
