Date: Sun, 18 Apr 2004 23:40:53 +0300 From: shaggy@vip.bg To: freebsd-questions@freebsd.org Subject: Routing and mpd as pptp client on FeeeBSD 5.2 Message-ID: <1082320853.4082e7d55aae7@mail.orbitel.bg>
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Hi, I have a problem using mpd as a PPTP client on FreeBSD 5.2. The connection is successfully established but I can't do anything with it. Using tcpdump I can see that GRE packets are sent through the rl0 interface during the connection establishing but later they are sent over the ng0. If I connect from a box that's behind the FreeBSD one and cut an open connection, clear NAT state and connect from the FreeBSD box I can see using tcpdump the reply packets for that connection on the ng0 interface. If I try to ping the other end - the PPTP server I get: PING 82.147.153.3 (82.147.153.3): 56 data bytes ping: sendto: Resource deadlock avoided ping: sendto: No buffer space available ping: sendto: No buffer space available ping: sendto: No buffer space available rl0 is 192.168.20.30, ng0 is 192.168.120.30 -> 192.168.3.37 netstat -rn Destination Gateway Flags Refs Use Netif Expire default 192.168.3.37 UGS 0 4 ng0 192.168.3.37 192.168.120.30 UH 1 2 ng0 192.168.0/16 192.168.20.1 UGS 0 69442 rl0 192.168.16/21 link#1 UC 0 0 rl0 192.168.20.1 00:c0:26:25:a6:18 UHLW 1 0 rl0 1143 192.168.20.30 127.0.0.1 UGHS 0 0 lo0 192.168.120.30 lo0 UHS 0 0 lo0 I also have captured this using tcpdump on the ng0 interface: 23:02:57.637259 192.168.120.30 > 82.147.153.3: icmp: echo request 23:02:57.667220 192.168.20.30.49490 > 192.168.3.37.1723: P 0:16(16) ack 1 win 65535: pptp CTRL_MSGTYPE=ECHORQ ID(1) (DF) 23:03:06.946714 62.73.99.35.6667 > 192.168.120.30.33639: P 0:21(21) ack 1 win 8192 <nop,nop,timestamp 570915101 3117573> (DF) [tos 0x50] 23:03:06.957383 192.168.20.30 > 192.168.3.37: gre [KAv1] ID:0000 A:11 [|gre] 23:03:09.227401 192.168.20.30.49490 > 192.168.3.37.1723: P 0:16(16) ack 1 win 65535: pptp CTRL_MSGTYPE=ECHORQ ID(1) (DF) 23:03:19.667567 192.168.20.30.49490 > 192.168.3.37.1723: P 0:16(16) ack 1 win 65535: pptp CTRL_MSGTYPE=ECHORQ ID(1) (DF) 23:03:38.094932 62.73.99.35.6667 > 192.168.120.30.33639: P 0:21(21) ack 1 win 8192 <nop,nop,timestamp 570918273 3117573> (DF) [tos 0x50] 23:03:38.107868 192.168.20.30 > 192.168.3.37: gre [KAv1] ID:0000 A:12 [|gre] tcpdump: pcap_loop: read: Device not configured
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