1.0.9 : Incoming TCP/IP services freeze

1.0.9 : Incoming TCP/IP services freeze

Post by Vijay Shast » Fri, 21 Oct 1994 00:49:55



I am a newbie for Linux and need some networking advice. I have a
couple of problems. I am running 1.0.9 and am using an ne2000
compatible card.

1. I find that I often can telnet and ftp to a remote host from my
machine but not vice versa. Incoming tcp/ip connections just hang
after saying "connected to trinity.mse.vt.edu". If I add some local
networks to the routing table, using

         route -add net "network" device eth0

the problem goes away temporarily and then resurfaces again.

The following is my routing table :

Kernel routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
128.173.6.0     *               255.255.255.0   U     0      0        0 eth0
128.173.5.0     *               255.255.255.0   U     0      0   142463 eth0
128.173.54.0    *               255.255.255.0   U     0      0      203 eth0
127.0.0.0       *               255.0.0.0       U     0      0     1224 lo
default         isb-ags.e0.cns. *               UG    0      0   216495 eth0

2. Running the command

        ifconfig eth0

reports the network and IP addresses as configured, but the wrong
hardware address.

eth0      Link encap UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00 \
                                    -00-00-00-00
          inet addr 128.173.6.213  Bcast 128.173.7.255  Mask 255.255.255.0
          UP BROADCAST RUNNING  MTU 1500  Metric 1
          RX packets 1498228 errors 0 dropped 0 overruns 0
          TX packets 74967 errors 0 dropped 0 overruns 0

What is it that I am doing wrong ? I will appreciate any suggestions.

                                Vijay Shastry


 
 
 

1.0.9 : Incoming TCP/IP services freeze

Post by Karl-Heinz Fandrey Elektro0Energievers. 53 » Wed, 26 Oct 1994 00:45:30



>I am a newbie for Linux and need some networking advice. I have a
>couple of problems. I am running 1.0.9 and am using an ne2000
>compatible card.
>1. I find that I often can telnet and ftp to a remote host from my
>machine but not vice versa. Incoming tcp/ip connections just hang
>after saying "connected to trinity.mse.vt.edu". If I add some local
>networks to the routing table, using
>     route -add net "network" device eth0
>the problem goes away temporarily and then resurfaces again.
>The following is my routing table :
>Kernel routing table
>Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
>128.173.6.0     *               255.255.255.0   U     0      0        0 eth0
>128.173.5.0     *               255.255.255.0   U     0      0   142463 eth0
>128.173.54.0    *               255.255.255.0   U     0      0      203 eth0
>127.0.0.0       *               255.0.0.0       U     0      0     1224 lo
>default         isb-ags.e0.cns. *               UG    0      0   216495 eth0
>2. Running the command
>    ifconfig eth0
>reports the network and IP addresses as configured, but the wrong
>hardware address.
>eth0      Link encap UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00 \
>                                -00-00-00-00
>          inet addr 128.173.6.213  Bcast 128.173.7.255  Mask 255.255.255.0

                     ^^^^^^^^^            ^^^^^^^^^           ^^^^^^^^^^^
I think, the ip-adress and broadcast sgould be in the same network !!!
The second problem is, you have no route-entry for your broadcast-network.
Change broadcast to 128.173.6.255 and try again.

Quote:>          UP BROADCAST RUNNING  MTU 1500  Metric 1
>          RX packets 1498228 errors 0 dropped 0 overruns 0
>          TX packets 74967 errors 0 dropped 0 overruns 0
>What is it that I am doing wrong ? I will appreciate any suggestions.

Ciao
                Willi