Subject: TCP/IP problems
To: None <port-pmax@netbsd.org>
From: Alan Wilson <phyaw@phy.hw.ac.uk>
List: port-pmax
Date: 04/21/2001 02:49:55
Hi All,

I'm having problems with very slow TCP/IP performance on my Decstation
5000/133 running NetBSD 1.5. Performance within my internal network is
fine but when i try to access the internet performance is *extremely*
slow.

None of my other machines have this problem so i suspect it is some kind
of routing issue. I suspect it is something to do with all the IPv6
stuff that comes with 1.5. Does anyone know if it is possible to disable
this and just use IPv4? The following is the output from netstat -rn

jaguar:alan> netstat -rn
Routing tables

Internet:
Destination        Gateway            Flags     Refs     Use    Mtu
Interface
default            192.168.28.2       UGS         0      236   1500  le0

127                127.0.0.1          UGRS        0        0  33228  lo0

127.0.0.1          127.0.0.1          UH          4       28  33228  lo0

192.168.28         link#1             UC          0        0   1500  le0

192.168.28.1       08:00:2b:2b:be:6d  UHL         3      767   1500  lo0

192.168.28.2       00:50:04:3a:da:32  UHL         4     5772   1500  le0

192.168.28.3       00:60:b0:18:3e:89  UHL         5     3880   1500  le0

192.168.28.4       08:00:69:07:0d:0e  UHL         3     6928   1500  le0

AppleTalk:
Destination        Gateway            Flags     Refs     Use    Mtu
Interface

Internet6:
Destination                   Gateway                   Flags
Refs     Use    Mtu  Interface
::/104                        ::1                       UGRS
0        0  33228  lo0 =>
::/96                         ::1                       UGRS
0        0  33228  lo0
::1                           ::1                       UH
12        0  33228  lo0
::127.0.0.0/104               ::1                       UGRS
0        0  33228  lo0
::224.0.0.0/100               ::1                       UGRS
0        0  33228  lo0
::255.0.0.0/104               ::1                       UGRS
0        0  33228  lo0
::ffff:0.0.0.0/96             ::1                       UGRS
0        0  33228  lo0
2002::/24                     ::1                       UGRS
0        0  33228  lo0
2002:7f00::/24                ::1                       UGRS
0        0  33228  lo0
2002:e000::/20                ::1                       UGRS
0        0  33228  lo0
2002:ff00::/24                ::1                       UGRS
0        0  33228  lo0
fe80::/10                     ::1                       UGRS
0        0  33228  lo0
fe80::%le0/64                 link#1                    UC
0        0   1500  le0
fe80::%lo0/64                 fe80::1%lo0               U
0        0  33228  lo0
fec0::/10                     ::1                       UGRS
0        0  33228  lo0
ff01::/32                     ::1                       U
0        0  33228  lo0
ff02::%le0/32                 link#1                    UC
0        4   1500  le0
ff02::%lo0/32                 fe80::1%lo0               UC
0        0  33228  lo0

Cheers

Alan./

--

 ____________________________________________________________
| Alan Wilson,                |                              |
| Physics Department,         |   Tel:      0131-451-3040    |
| Heriot-Watt University,     |   Fax:      0131-451-3136    |
| Edinburgh,EH14 4AS,Scotland.|   Email:  phyaw@phy.hw.ac.uk |
|_____________________________|______________________________|