On Mon, Feb 25, 2002 at 07:30:59PM +0900, JINMEI Tatuya / ?$B?@L@C#:H?(B wrote:
> >>>>> On Sat, 23 Feb 2002 08:46:16 +1100,
> >>>>> Edwin Groothuis <[EMAIL PROTECTED]> said:
>
> >> > And the interface configuration:
> >> > gif0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1280
> >> > tunnel inet 203.173.130.126 --> 206.123.31.114
> >> > inet6 fe80::250:8bff:feb9:2d24%gif0 prefixlen 64 scopeid 0x9
> >> > inet6 3ffe:b80:2:460::2 --> 3ffe:b80:2:460::1 prefixlen 128
> >>
> >> Hmm, and what command did you type to cause this problem? If possible,
> >> please give me the network topology as well.
>
> > The problem was when "route add -inet6 default -interface gif0" was
> > used instead of the "route ... <ipaddress>". For the rest the
> > configuration and the commands were the same.
>
> > This is a layout of the 'network':
>
> (snip)
>
> > The symptons were that if I setup a TCP-session, the original message
> > is at:
> >
>http://www.freebsd.org/cgi/getmsg.cgi?fetch=279914+284924+/usr/local/www/db/text/2002/freebsd-hackers/20020217.freebsd-hackers
>
> Okay, I understand the configuration. I did a similar test on a
> 4.5-RELEASE box, but could not reproduce the problem. The main
> difference in my test case is I did not use ppp, so I guess ppp is
> somehow related to this problem...
>
> Now I'd like to know:
>
> - did you see the same problem in an environment without ppp?
That PPP link is my link to the outside world, I'm afraid I can't
help you with this one. (Yes I'm living in a backwards country)
> - what is the result of netstat -rnal when the kernel is sending
> neighbor solicitations?
I have three captures for you: one before, one during and one in
hang state:
*** This one is from before any session:
Routing tables
Internet:
Destination Gateway Flags Refs Use Mtu Netif Expire
default 203.109.251.3 UGSc 11 2073 1524 tun0
62.163.31.203 203.109.251.3 UGHW 1 1900 1524 tun0
63.149.6.93 203.109.251.3 UGHW 1 2036 1524 tun0
127.0.0.1 127.0.0.1 UH 7824 496162 16384 lo0
129.127.28.4 203.109.251.3 UGHW 1 1862 1524 tun0
131.155.132.36 203.109.251.3 UGHW 1 2408 1524 tun0
152.163.159.234 203.109.251.3 UGHW3 0 1969 1524 tun0 71
192.168.0 link#7 UC 2 0 1500 vmnet1
192.168.0.1 0:bd:10:10:0:1 UHLW 0 4 1500 lo0
192.168.0.44 link#7 UHLW 1 11 1500 vmnet1
192.168.1 link#1 UC 3 0 1500 fxp0
192.168.1.1 0:50:8b:b9:2d:24 UHLW 0 31541 1500 lo0
192.168.1.2 0:5:2:b1:89:ee UHLW 2 95980 1500 fxp0 1163
192.168.1.255 ff:ff:ff:ff:ff:ff UHLWb 0 38 1500 fxp0
203.12.68.36 203.109.251.3 UGHW 1 1751 1524 tun0
203.109.251.3 203.173.157.67 UH 12 0 1524 tun0
204.57.55.54 203.109.251.3 UGHW 1 1630 1524 tun0
206.123.31.114 203.109.251.3 UGHW 2 2000 1524 tun0
212.204.230.141 203.109.251.3 UGHW 3 649 1524 tun0
217.120.67.246 203.109.251.3 UGHW 1 2049 1524 tun0
254.237.183.234 203.109.251.3 UGHW 2 2065 1500 tun0
Internet6:
Destination Gateway Flags Refs
Use Mtu Netif Expire
::/96 ::1 UGRSc 0
: 0 16384 lo0 =>
default gif0 ULSc 0
0 1280 gif0
::1 ::1 UH 4
: 458445 16384 lo0
::ffff:0.0.0.0/96 ::1 UGRSc 0
: 0 16384 lo0
3ffe:b80:2:460::1 3ffe:b80:2:460::2 UH 0
0 1280 gif0
3ffe:b80:2:460::2 link#9 UHL 1
0 1280 lo0
fe80::/10 ::1 UGRSc 0
0 16384 lo0
fe80::%fxp0/64 link#1 UC 0
0 1500 fxp0
fe80::250:8bff:feb9:2d24%fxp0 0:50:8b:b9:2d:24 UHL 0
0 1500 lo0
fe80::%lo0/64 fe80::1%lo0 Uc 0
0 16384 lo0
fe80::1%lo0 link#3 UHL 0
0 16384 lo0
fe80::%vmnet1/64 link#7 UC 0
0 1500 vmnet1
fe80::2bd:10ff:fe10:1%vmnet1 0:bd:10:10:0:1 UHL 0
0 1500 lo0
fe80::%tun0/64 fe80::250:8bff:feb9:2d24%tun0 Uc 0
0 1500 tun0
fe80::250:8bff:feb9:2d24%tun0 link#8 UHL 0
0 1500 lo0
fe80::%gif0/64 link#9 UC 0
0 1280 gif0
fe80::250:8bff:feb9:2d24%gif0 link#9 UHL 0
0 1280 lo0
ff01::/32 ::1 U 0
0 16384 lo0
ff02::/16 ::1 UGRS 0
0 16384 lo0
ff02::%fxp0/32 link#1 UC 0
0 1500 fxp0
ff02::%lo0/32 ::1 UC 0
0 16384 lo0
ff02::%vmnet1/32 link#7 UC 0
0 1500 vmnet1
ff02::%tun0/32 fe80::250:8bff:feb9:2d24%tun0 UC 0
0 1500 tun0
ff02::%gif0/32 link#9 UC 0
0 1280 gif0
*** This one is just after the tcp-session is setup:
Routing tables
Internet:
Destination Gateway Flags Refs Use Mtu Netif Expire
default 203.109.251.3 UGSc 11 2073 1524 tun0
62.163.31.203 203.109.251.3 UGHW 1 1902 1524 tun0
63.149.6.93 203.109.251.3 UGHW 1 2036 1524 tun0
127.0.0.1 127.0.0.1 UH 7824 496172 16384 lo0
129.127.28.4 203.109.251.3 UGHW 1 1862 1524 tun0
131.155.132.36 203.109.251.3 UGHW 1 2408 1524 tun0
152.163.159.234 203.109.251.3 UGHW3 0 1969 1524 tun0 66
192.168.0 link#7 UC 2 0 1500 vmnet1
192.168.0.1 0:bd:10:10:0:1 UHLW 0 4 1500 lo0
192.168.0.44 link#7 UHLW 1 11 1500 vmnet1
192.168.1 link#1 UC 3 0 1500 fxp0
192.168.1.1 0:50:8b:b9:2d:24 UHLW 0 31541 1500 lo0
192.168.1.2 0:5:2:b1:89:ee UHLW 2 95980 1500 fxp0 1158
192.168.1.255 ff:ff:ff:ff:ff:ff UHLWb 0 38 1500 fxp0
203.12.68.36 203.109.251.3 UGHW 1 1752 1524 tun0
203.109.251.3 203.173.157.67 UH 12 0 1524 tun0
204.57.55.54 203.109.251.3 UGHW 1 1631 1524 tun0
206.123.31.114 203.109.251.3 UGHW 2 2003 1524 tun0
212.204.230.141 203.109.251.3 UGHW 3 649 1524 tun0
217.120.67.246 203.109.251.3 UGHW 1 2049 1524 tun0
254.237.183.234 203.109.251.3 UGHW 2 2065 1500 tun0
Internet6:
Destination Gateway Flags Refs
Use Mtu Netif Expire
::/96 ::1 UGRSc 0
: 0 16384 lo0 =>
default gif0 ULSc 1
0 1280 gif0
::1 ::1 UH 4
: 458445 16384 lo0
::ffff:0.0.0.0/96 ::1 UGRSc 0
: 0 16384 lo0
3ffe:b80:2:460::1 3ffe:b80:2:460::2 UH 0
0 1280 gif0
3ffe:b80:2:460::2 link#9 UHL 1
0 1280 lo0
3ffe:8050:201:1860:2a0:c9ff:feed:b7ea gif0 UHLW 1
3 1280 gif0
fe80::/10 ::1 UGRSc 0
0 16384 lo0
fe80::%fxp0/64 link#1 UC 0
0 1500 fxp0
fe80::250:8bff:feb9:2d24%fxp0 0:50:8b:b9:2d:24 UHL 0
0 1500 lo0
fe80::%lo0/64 fe80::1%lo0 Uc 0
0 16384 lo0
fe80::1%lo0 link#3 UHL 0
0 16384 lo0
fe80::%vmnet1/64 link#7 UC 0
0 1500 vmnet1
fe80::2bd:10ff:fe10:1%vmnet1 0:bd:10:10:0:1 UHL 0
0 1500 lo0
fe80::%tun0/64 fe80::250:8bff:feb9:2d24%tun0 Uc 0
0 1500 tun0
fe80::250:8bff:feb9:2d24%tun0 link#8 UHL 0
0 1500 lo0
fe80::%gif0/64 link#9 UC 0
0 1280 gif0
fe80::250:8bff:feb9:2d24%gif0 link#9 UHL 0
0 1280 lo0
ff01::/32 ::1 U 0
0 16384 lo0
ff02::/16 ::1 UGRS 0
0 16384 lo0
ff02::%fxp0/32 link#1 UC 0
0 1500 fxp0
ff02::%lo0/32 ::1 UC 0
0 16384 lo0
ff02::%vmnet1/32 link#7 UC 0
0 1500 vmnet1
ff02::%tun0/32 fe80::250:8bff:feb9:2d24%tun0 UC 0
0 1500 tun0
ff02::%gif0/32 link#9 UC 0
0 1280 gif0
*** And this one is after is hangs:
Routing tables
Internet:
Destination Gateway Flags Refs Use Mtu Netif Expire
default 203.109.251.3 UGSc 11 2073 1524 tun0
62.163.31.203 203.109.251.3 UGHW 1 1907 1524 tun0
63.149.6.93 203.109.251.3 UGHW 1 2036 1524 tun0
127.0.0.1 127.0.0.1 UH 7824 496188 16384 lo0
129.127.28.4 203.109.251.3 UGHW 1 1862 1524 tun0
131.155.132.36 203.109.251.3 UGHW 1 2408 1524 tun0
152.163.159.234 203.109.251.3 UGHW3 0 1969 1524 tun0 45
192.168.0 link#7 UC 2 0 1500 vmnet1
192.168.0.1 0:bd:10:10:0:1 UHLW 0 4 1500 lo0
192.168.0.44 link#7 UHLW 1 11 1500 vmnet1
192.168.1 link#1 UC 3 0 1500 fxp0
192.168.1.1 0:50:8b:b9:2d:24 UHLW 0 31541 1500 lo0
192.168.1.2 0:5:2:b1:89:ee UHLW 2 95980 1500 fxp0 1137
192.168.1.255 ff:ff:ff:ff:ff:ff UHLWb 0 38 1500 fxp0
203.12.68.36 203.109.251.3 UGHW 1 1755 1524 tun0
203.109.251.3 203.173.157.67 UH 12 0 1524 tun0
204.57.55.54 203.109.251.3 UGHW 1 1631 1524 tun0
206.123.31.114 203.109.251.3 UGHW 2 2017 1524 tun0
212.204.230.141 203.109.251.3 UGHW 3 649 1524 tun0
217.120.67.246 203.109.251.3 UGHW 1 2049 1524 tun0
254.237.183.234 203.109.251.3 UGHW 3 2072 1500 tun0
Internet6:
Destination Gateway Flags Refs
Use Mtu Netif Expire
::/96 ::1 UGRSc 0
: 0 16384 lo0 =>
default gif0 ULSc 1
0 1280 gif0
::1 ::1 UH 4
: 458445 16384 lo0
::ffff:0.0.0.0/96 ::1 UGRSc 0
: 0 16384 lo0
3ffe:b80:2:460::1 3ffe:b80:2:460::2 UH 0
0 1280 gif0
3ffe:b80:2:460::2 link#9 UHL 1
0 1280 lo0
fe80::/10 ::1 UGRSc 0
0 16384 lo0
fe80::%fxp0/64 link#1 UC 0
0 1500 fxp0
fe80::250:8bff:feb9:2d24%fxp0 0:50:8b:b9:2d:24 UHL 0
0 1500 lo0
fe80::%lo0/64 fe80::1%lo0 Uc 0
0 16384 lo0
fe80::1%lo0 link#3 UHL 0
0 16384 lo0
fe80::%vmnet1/64 link#7 UC 0
0 1500 vmnet1
fe80::2bd:10ff:fe10:1%vmnet1 0:bd:10:10:0:1 UHL 0
0 1500 lo0
fe80::%tun0/64 fe80::250:8bff:feb9:2d24%tun0 Uc 0
0 1500 tun0
fe80::250:8bff:feb9:2d24%tun0 link#8 UHL 0
0 1500 lo0
fe80::%gif0/64 link#9 UC 0
0 1280 gif0
fe80::250:8bff:feb9:2d24%gif0 link#9 UHL 0
0 1280 lo0
ff01::/32 ::1 U 0
0 16384 lo0
ff02::/16 ::1 UGRS 0
0 16384 lo0
ff02::%fxp0/32 link#1 UC 0
0 1500 fxp0
ff02::%lo0/32 ::1 UC 0
0 16384 lo0
ff02::%vmnet1/32 link#7 UC 0
0 1500 vmnet1
ff02::%tun0/32 fe80::250:8bff:feb9:2d24%tun0 UC 0
0 1500 tun0
ff02::%gif0/32 link#9 UC 0
0 1280 gif0
For your convenience, this is in the diff between the first and the second:
Internet6:
Destination Gateway Flags Refs
Use Mtu Netif Expire
::/96 ::1 UGRSc 0
: 0 16384 lo0 =>
-default gif0 ULSc 0
0 1280 gif0
+default gif0 ULSc 1
+ 0 1280 gif0
::1 ::1 UH 4
: 458445 16384 lo0
::ffff:0.0.0.0/96 ::1 UGRSc 0
: 0 16384 lo0
3ffe:b80:2:460::1 3ffe:b80:2:460::2 UH 0
0 1280 gif0
3ffe:b80:2:460::2 link#9 UHL 1
0 1280 lo0
+3ffe:8050:201:1860:2a0:c9ff:feed:b7ea gif0 UHLW 1
+ 3 1280 gif0
fe80::/10 ::1 UGRSc 0
0 16384 lo0
fe80::%fxp0/64 link#1 UC 0
0 1500 fxp0
fe80::250:8bff:feb9:2d24%fxp0 0:50:8b:b9:2d:24 UHL 0
0 1500 lo0
And this in the diff between the second and the third:
::ffff:0.0.0.0/96 ::1 UGRSc 0
: 0 16384 lo0
3ffe:b80:2:460::1 3ffe:b80:2:460::2 UH 0
0 1280 gif0
3ffe:b80:2:460::2 link#9 UHL 1
0 1280 lo0
-3ffe:8050:201:1860:2a0:c9ff:feed:b7ea gif0 UHLW 1
3 1280 gif0
fe80::/10 ::1 UGRSc 0
0 16384 lo0
fe80::%fxp0/64 link#1 UC 0
0 1500 fxp0
fe80::250:8bff:feb9:2d24%fxp0 0:50:8b:b9:2d:24 UHL 0
0 1500 lo0
> - I guess some process (or kernel) modifies the route to the
> destination. Could you run 'route -n monitor' while the session to
> see the modification?
The first message is when the session is setup, the second one is
a short time later (not directly after the last neighbour solicitation
message). I don't know what the 254.237.183.234 is.
got message of size 260 on Mon Feb 25 22:04:25 2002
RTM_ADD: Add Route: len 260, pid: 0, seq 0, errno 0,
flags:<UP,HOST,DONE,LLINFO,WASCLONED>
locks: inits:
sockaddrs: <DST,GATEWAY,IFP,IFA>
3ffe:8050:201:1860:2a0:c9ff:feed:b7ea gif0 gif0 fe80::250:8bff:feb9:2d24%gif0
got message of size 124 on Mon Feb 25 22:04:38 2002
RTM_LOSING: Kernel Suspects Partitioning: len 124, pid: 0, seq 0, errno 0,
flags:<UP,GATEWAY,HOST,DONE,WASCLONED>
locks: inits:
sockaddrs: <DST,GATEWAY>
254.237.183.234 203.109.251.3
If you need more information, feel free to ask.
Edwin
--
Edwin Groothuis | Personal website: http://www.MavEtJu.org
[EMAIL PROTECTED] | Interested in MUDs? Visit Fatal Dimensions:
------------------+ http://www.FatalDimensions.org/
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-hackers" in the body of the message
