I find that during the blocking behaviour, when I try and ping the
windows box, a tcpdump shows that each second ping attempt is followed
by a response (it appears) from an IPv6 address (10.1.1.99 is the
freebsd host):
Virtual terminal 1: $ tcpdump > tcpdump.out
Virtual terminal 2: $ ping 10.1.1.173 [my win2K box, named
mpworkstation]
Virtual terminal 1: $ CTRL-C
Virtual terminal 1: $ cat tcpdump.out
13:30:51.066625 802.1d config 8000.00:30:19:53:05:00.8011 root
8000.00:30:19:53:05:00 pathcost 0 age 0 max 20 hello 2 fdelay 15
13:30:53.069431 802.1d config 8000.00:30:19:53:05:00.8011 root
8000.00:30:19:53:05:00 pathcost 0 age 0 max 20 hello 2 fdelay 15
13:30:53.778918 IP 10.1.1.99 > mpworkstation: ICMP echo request, id
25361, seq 0, length 64
13:30:54.712093 IP 10.1.1.99.domain > blackhole-1.iana.org.domain:
39723 [1au] PTR? 99.1.1.10.in-addr.arpa. (51)
13:30:54.779708 IP 10.1.1.99 > mpworkstation: ICMP echo request, id
25361, seq 1, length 64
13:30:54.803586 arp who-has 10.1.1.2 tell 10.1.1.119
13:30:54.840818 IP blackhole-1.iana.org.domain > 10.1.1.99.domain:
39723 NXDomain* 0/1/1 (128)
13:30:55.072256 802.1d config 8000.00:30:19:53:05:00.8011 root
8000.00:30:19:53:05:00 pathcost 0 age 0 max 20 hello 2 fdelay 15
13:30:55.780687 IP 10.1.1.99 > mpworkstation: ICMP echo request, id
25361, seq 2, length 64
13:30:55.841542 IP 10.1.1.99.domain > blackhole-2.iana.org.domain: 1862
[1au] PTR? 2.1.1.10.in-addr.arpa. (50)
13:30:55.970699 IP blackhole-2.iana.org.domain > 10.1.1.99.domain: 1862
NXDomain* 0/1/1 (127)
13:30:55.971365 IP 10.1.1.99.domain > blackhole-1.iana.org.domain:
16894 [1au] PTR? 119.1.1.10.in-addr.arpa. (52)
13:30:56.099288 IP blackhole-1.iana.org.domain > 10.1.1.99.domain:
16894 NXDomain* 0/1/1 (129)
13:30:56.781666 IP 10.1.1.99 > mpworkstation: ICMP echo request, id
25361, seq 3, length 64
13:30:57.075128 802.1d config 8000.00:30:19:53:05:00.8011 root
8000.00:30:19:53:05:00 pathcost 0 age 0 max 20 hello 2 fdelay 15
13:30:57.778934 IP 192.168.1.108.netbios-dgm >
192.168.1.255.netbios-dgm: NBT UDP PACKET(138)
13:30:57.779300 IP 10.1.1.108.netbios-dgm > 10.1.1.255.netbios-dgm: NBT
UDP PACKET(138)
13:30:57.782640 IP 10.1.1.99 > mpworkstation: ICMP echo request, id
25361, seq 4, length 64
13:30:58.099166 IP 10.1.1.99.domain > epazote.arin.net.domain: 41215
[1au] PTR? 255.1.168.192.in-addr.arpa. (55)
13:30:58.783615 IP 10.1.1.99 > mpworkstation: ICMP echo request, id
25361, seq 5, length 64
13:30:59.077884 802.1d config 8000.00:30:19:53:05:00.8011 root
8000.00:30:19:53:05:00 pathcost 0 age 0 max 20 hello 2 fdelay 15
13:30:59.784593 IP 10.1.1.99 > mpworkstation: ICMP echo request, id
25361, seq 6, length 64
13:31:00.099647 IP 10.1.1.99.domain > c3.NSTLD.COM.domain: 18950 [1au]
PTR? 255.1.168.192.in-addr.arpa. (55)
13:31:00.174654 IP c3.NSTLD.COM.domain > 10.1.1.99.domain: 18950- 0/2/1
(115)
13:31:00.174865 IP 10.1.1.99.domain > blackhole-2.iana.org.domain:
21147 [1au] PTR? 255.1.168.192.in-addr.arpa. (55)
13:31:00.302542 IP blackhole-2.iana.org.domain > 10.1.1.99.domain:
21147 NXDomain* 0/1/1 (132)
13:31:00.303203 IP 10.1.1.99.domain > blackhole-1.iana.org.domain:
15742 [1au] PTR? 108.1.168.192.in-addr.arpa. (55)
13:31:00.424762 IP blackhole-1.iana.org.domain > 10.1.1.99.domain:
15742 NXDomain* 0/1/1 (132)
13:31:00.425485 IP 10.1.1.99.domain > blackhole-2.iana.org.domain:
36677 [1au] PTR? 255.1.1.10.in-addr.arpa. (52)
13:31:00.539310 IP blackhole-2.iana.org.domain > 10.1.1.99.domain:
36677 NXDomain* 0/1/1 (129)
13:31:00.539955 IP 10.1.1.99.domain > blackhole-1.iana.org.domain:
34458 [1au] PTR? 108.1.1.10.in-addr.arpa. (52)
13:31:00.653398 IP blackhole-1.iana.org.domain > 10.1.1.99.domain:
34458 NXDomain* 0/1/1 (129)
13:31:00.785569 IP 10.1.1.99 > mpworkstation: ICMP echo request, id
25361, seq 7, length 64
13:31:01.081370 802.1d config 8000.00:30:19:53:05:00.8011 root
8000.00:30:19:53:05:00 pathcost 0 age 0 max 20 hello 2 fdelay 15
Lowell Gilbert wrote:
Matthew Pope <[EMAIL PROTECTED]> writes:
I am trying to resolve a connection timed out problem. The problem
occurs when I attempt to ssh, or http to my freebsd host from my
windows (2K) box. About 3/4 of the time I get a "Connection timed
out" when I attempt to ssh into the freebsd host.
Coincident with this behaviour, I can not ping my windows box from the
freebsd host, and when I try I get no packets returned.
Meanwhile, the freebsd box at no time has any problems pinging google,
only the local network. I recall having a sockets timeout variable or
something that needed tuning when I ran freebsd as a http / ssh server
before . Can someone provide a hint as to how I can resolve this?
Thanks,
Matthew
-bash-2.05b$ uname -a
FreeBSD ns.mbpesecurity.com 6.1-RELEASE-p10 FreeBSD 6.1-RELEASE-p10
#0: Mon Oct 23 00:47:22 EDT 2006 [EMAIL PROTECTED]
urity.com:/usr/obj/usr/src/sys/MPKERNEL i386
Does the FreeBSD box access the Internet through the same link as it
reaches the Windows machine? [I'm guessing not, but you didn't say.]
Yes, both are plugged into the same router/switch, a Cisco Catalyst 2900.
Is there anything in the logs or on the console?
The logs do not show anything related, however a tcpdump during the ping
does show something, see above.
Does the link light
stay on for the FreeBSD machine?
The network adaptor link light appears broken as it is always off.
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