I've been working on migrating a PPTP server from FreeBSD 7.1 to FreeBSD 8.1. The server is configured using PopTop (from ports) and PPP (/usr/sbin) rather than MPD. (Before anybody tells me to use MPD we can't because it doesn't inject packets into the kernel in the same way and it's not possible to filter on them correctly)
Basic PPTP connection works properly. The fun happens when I have two simultaneous users. The first one to DISCONNECT deletes the routes for both of them and all PPTP traffic ceases. I believe this is because of the third RTM_DELETE message in the route monitor output below (From FreeBSD 8.1): got message of size 304 on Mon Jan 10 15:48:40 2011 RTM_CHANGE: Change Metrics or flags: len 304, pid: 7871, seq 3, errno 0, flags:<UP,DONE,STATIC> locks: inits: <mtu> sockaddrs: <DST,GATEWAY,NETMASK,IFP,IFA> 10.0.0.31 tun0 (255) ffff ffff ffff tun0 10.0.5.1 got message of size 232 on Mon Jan 10 15:48:40 2011 RTM_DELETE: Delete Route: len 232, pid: 7871, seq 4, errno 0, flags:<DONE,STATIC> locks: inits: sockaddrs: <DST,GATEWAY,NETMASK> 10.0.0.31 tun0 (255) ffff ffff ffff got message of size 168 on Mon Jan 10 15:48:40 2011 RTM_IFINFO: iface status change: len 168, if# 11, link: up, flags:<PTP,RUNNING,MULTICAST> got message of size 192 on Mon Jan 10 15:48:40 2011 RTM_DELETE: Delete Route: len 192, pid: 0, seq 0, errno 0, flags:<UP,GATEWAY,STATIC> locks: inits: sockaddrs: <DST,GATEWAY,NETMASK> default 10.0.5.1 default got message of size 116 on Mon Jan 10 15:48:40 2011 RTM_DELADDR: address being removed from iface: len 116, metric 0, flags: sockaddrs: <NETMASK,IFP,IFA,BRD> 255.255.255.255 tun0 10.0.5.1 10.0.0.31 On FreeBSD 7.1 the output is as follows: got message of size 232 on Mon Jan 10 16:18:11 2011 RTM_CHANGE: Change Metrics or flags: len 232, pid: 43773, seq 3, errno 0, flags:<UP,DONE,STATIC> locks: inits: <mtu> sockaddrs: <DST,GATEWAY,NETMASK> 10.0.0.31 tun14 (255) ffff ffff ffff got message of size 232 on Mon Jan 10 16:18:11 2011 RTM_DELETE: Delete Route: len 232, pid: 43773, seq 4, errno 0, flags:<GATEWAY,DONE,STATIC> locks: inits: sockaddrs: <DST,GATEWAY,NETMASK> 10.0.0.31 tun14 (255) ffff ffff ffff got message of size 168 on Mon Jan 10 16:18:11 2011 RTM_IFINFO: iface status change: len 168, if# 23, link: unknown, flags:<PTP,RUNNING,MULTICAST> There are quite a few additional messages on connect as well but I don't believe they are impacting on my issue. Looking in usr.sbin/ppp/route.c I can't see any changes that would obviously impact on this :( My ppp config for both 7.1 & 8.x is as follows: default: set log Chat LCP IPCP CCP tun command pptp: set timeout 0 set login set ifaddr 10.0.5.1/24 HISADDR 255.255.255.255 disable deflate pred1 deny deflate pred1 enable MPPE accept MPPE enable chap81 set mppe 128 stateless I have also confirmed the same behaviour on 8.0 Any ideas?? Mel_______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
