Date: Thu, 6 May 2004 15:43:19 +0800 From: =?Windows-1251?B?zODq8ejsINfl8/Hu4g==?= <chmax@kras.ru> To: freebsd-net@freebsd.org Subject: "No buffer space available" problem. FreeBSD 4.7, mpd 3.17 Message-ID: <910014759.20040506154320@kras.ru>
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Hello all!
A couple days ago i've got next problem with my ISP (before everything
were ok). When connection to the VPN server is established then I can't
ping anything through the tunel even VPN server (192.168.10.1):
64 bytes from 192.168.10.1: icmp_seq=503 ttl=64 time=0.634 ms
64 bytes from 192.168.10.1: icmp_seq=504 ttl=64 time=0.689 ms
64 bytes from 192.168.10.1: icmp_seq=505 ttl=64 time=0.645 ms
64 bytes from 192.168.10.1: icmp_seq=506 ttl=64 time=0.664 ms
ping: sendto: Resource deadlock avoided
ping: sendto: Resource deadlock avoided
ping: sendto: No buffer space available
ping: sendto: No buffer space available
ping: sendto: No buffer space available
ping: sendto: No buffer space available
ping: sendto: No buffer space available
ping: sendto: No buffer space available
ping: sendto: No buffer space available
In moment when mdp connetction established ping response is over.
There is tcpdump -i ng0:
tcpdump: listening on ng0
12:23:40.489990 192.168.100.102 > 192.168.10.1: icmp: echo request
12:23:41.499975 192.168.100.102 > 192.168.10.1: icmp: echo request
12:23:42.509985 192.168.100.102 > 192.168.10.1: icmp: echo request
12:23:43.519997 192.168.100.102 > 192.168.10.1: icmp: echo request
12:23:44.530011 192.168.100.102 > 192.168.10.1: icmp: echo request
12:23:45.540022 192.168.100.102 > 192.168.10.1: icmp: echo request
12:23:46.550046 192.168.100.102 > 192.168.10.1: icmp: echo request
12:23:47.560053 192.168.100.102 > 192.168.10.1: icmp: echo request
12:23:48.570068 192.168.100.102 > 192.168.10.1: icmp: echo request
12:23:49.580084 192.168.100.102 > 192.168.10.1: icmp: echo request
12:23:50.590127 192.168.100.102 > 192.168.10.1: icmp: echo request
12:23:51.600118 192.168.100.102 > 192.168.10.1: icmp: echo request
12:23:52.610151 192.168.100.102 > 192.168.10.1: icmp: echo request
12:23:53.620149 192.168.100.102 > 192.168.10.1: icmp: echo request
Seems like nothing can get through the tunnel.
netstat -m:
196/1328/3328 mbufs in use (current/peak/max):
193 mbufs allocated to data
3 mbufs allocated to packet headers
192/236/832 mbuf clusters in use (current/peak/max)
1304 Kbytes allocated to network (52% of mb_map in use)
652 requests for memory denied
15 requests for memory delayed
29 calls to protocol drain routines
Looks like no any problem here.
I'v red someting similar about Cisco VPN servers, but solution that
were given did'n help me.
ifconfig:
xl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
options=3<rxcsum,txcsum>
inet 192.168.10.12 netmask 0xffffff00 broadcast 192.168.10.255
ether 00:01:02:ca:0c:24
media: Ethernet autoselect (100baseTX <full-duplex>)
status: active
fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet 192.168.0.10 netmask 0xffffffc0 broadcast 192.168.0.63
ether 00:a0:c9:69:91:8a
media: Ethernet autoselect (100baseTX <full-duplex>)
status: active
lp0: flags=8810<POINTOPOINT,SIMPLEX,MULTICAST> mtu 1500
faith0: flags=8002<BROADCAST,MULTICAST> mtu 1500
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet 127.0.0.1 netmask 0xff000000
ppp0: flags=8010<POINTOPOINT,MULTICAST> mtu 1500
sl0: flags=c010<POINTOPOINT,LINK2,MULTICAST> mtu 552
ng0: flags=88d1<UP,POINTOPOINT,RUNNING,NOARP,SIMPLEX,MULTICAST> mtu 1500
inet 192.168.100.102 --> 192.168.10.1 netmask 0xffffffff
>mpd.comf:
default:
load vpn
vpn:
new -i ng0 ciscovpn pptp192
set bundle authname "*******"
set ipcp ranges 192.168.100.102 192.168.10.1
set iface up-script /usr/local/etc/mpd/iface-up.sh
load vpnpptp
open
vpnpptp:
set bundle disable compression
# set bundle no crypt-reqd
set bundle enable compression
set ccp yes mppc
set ccp yes mpp-e40
set ccp yes mpp-e128
set bundle enable crypt-reqd
set ccp yes mpp-stateless
set iface idle 0
set ipcp disable vjcomp
set ipcp enable req-pri-dns req-sec-dns
set link max-redial 1
set link keep-alive 0 0
set link disable pap chap
set link disable acfcomp protocomp
> end
>mpd.links
pptp192:
set link type pptp
set pptp peer 192.168.10.1
set pptp enable originate outcall
> end
>iface-up.sh
#!/bin/sh
iface=$1
proto=$2
localip=$3
remoteip=$4
vpn_private_ip=192.168.10.1
ifconfig $iface $proto $localip $vpn_private_ip netmask 0xffffffff
ifconfig $iface mtu 1500
route flush
route add default -interface $iface
> end
And there is nothing strange in mpd.log also
As far as I know on the ISP side is mdp-3.17 and FreeBSD too.
And there is no any problems whith XP box.
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