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Re: prefixlen of IPv6 over PPP



From: David Young <dyoung%pobox.com@localhost>
Subject: Re: prefixlen of IPv6 over PPP
Date: Fri, 6 Nov 2009 13:25:41 -0600

> What does 'ndp -i ppp1' say?  There has been a bug in the kernel for a
> few months that affects acceptance of router advertisements.  You may
> have to run 'ndp -i ppp1 accept_rtadv' to make the interface accept
> advertisements.

# uname -a
NetBSD dixie.eagan.jp 5.0.1_PATCH NetBSD 5.0.1_PATCH (DIXIE) #2: Thu Aug 20 
22:41:20 JST 2009  
nagae%dixie.eagan.jp@localhost:/usr/src/sys/arch/i386/compile/DIXIE i386
# ifconfig ppp1
ppp1: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1500
        inet6 fe80::f8b4:51da:37d5:d2f3%ppp1 -> fe80::21c:eff:fe67:701b 
prefixlen 128 scopeid 0x7
# ndp -i ppp1
linkmtu=1500, maxmtu=1500, curhlim=64, basereachable=30s0ms, reachable=14s, 
retrans=1s0ms
Flags: nud accept_rtadv 
# ndp -i ppp1 accept_rtadv
linkmtu=1500, maxmtu=1500, curhlim=64, basereachable=30s0ms, reachable=14s, 
retrans=1s0ms
Flags: nud accept_rtadv 
# rtsol ppp1
# ifconfig ppp1
ppp1: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1500
        inet6 fe80::f8b4:51da:37d5:d2f3%ppp1 -> fe80::21c:eff:fe67:701b 
prefixlen 128 scopeid 0x7
# tail /var/log/messages
Nov  7 05:50:51 dixie pppd[806]: CHAP authentication succeeded
Nov  7 05:50:51 dixie pppd[806]: local  LL address fe80::f8b4:51da:37d5:d2f3
Nov  7 05:50:51 dixie pppd[806]: remote LL address fe80::021c:0eff:fe67:701b
Nov  7 05:50:51 dixie /netbsd: nd6_ns_input: ND packet from non-neighbor
Nov  7 05:50:54 dixie pppd[806]: CCP terminated by peer
Nov  7 05:50:54 dixie pppd[806]: Compression disabled by peer.
Nov  7 05:50:55 dixie /netbsd: in6_ifadd: wrong prefixlen for ppp1 (prefix=64 
ifid=0)
Nov  7 05:51:50 dixie pptp[723]: anon log[pptp_handle_timer:pptp_ctrl.c:1126]: 
sending echo request: 1
Nov  7 05:51:51 dixie pptp[723]: anon log[logecho:pptp_ctrl.c:679]: Echo Reply 
received.
Nov  7 05:52:24 dixie /netbsd: in6_ifadd: wrong prefixlen for ppp1 (prefix=64 
ifid=0)


Should I switch to tech-net or somewhere?

-- 
Nagae Hidetake          nagae%eagan.jp@localhost
                        http://www.eagan.jp/nagae/


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