Failure to connect to some sites
I don't even know where to begin debugging this one.
For a long time now, I've known that there were some sites on the net
that simply will not talk to me. For example, www.compaq.com,
www.toshiba.com, sourceforge.net, etc. (The last one being my current
pressing problem :-)
I have a small network in the house and for a long time I've had
a modem hanging off my sparc box. From the sparc I could always
talk to everything, but other machines on the network
couldn't. Seems likely that there's a problem with my network
config on the sparc or something, right?
Ok, I fussed with that until I couldn't stand it anymore and I
gave up. I moved the modem off the sparc and onto my linux
desktop machine (running Debian 2.1). I figured this way, even
if I couldn't get to those sites from the other machines on the
network, at least I could get to them from there.
But I can't. And I am absolutely clueless and entirely
frustrated. What's worse, if I boot the desktop box into Win98,
everything works just fine.
If anyone has any suggestions, I'd really like to hear them.
Connections to most places on the net work just fine, so I can't
believe that it's simply a routing problem. Still, I'm not quite
sure how to interpret these differences so here are the two routing
tables.
This is the output of ipconfig /all under Win98:
Windows 98 IP Configuration
Host Name . . . . . . . . . : eris.nwalsh.com
DNS Servers . . . . . . . . : 206.72.196.10
206.72.196.14
Node Type . . . . . . . . . : Broadcast
NetBIOS Scope ID. . . . . . :
IP Routing Enabled. . . . . : No
WINS Proxy Enabled. . . . . : No
NetBIOS Resolution Uses DNS : Yes
0 Ethernet adapter :
Description . . . . . . . . : PPP Adapter.
Physical Address. . . . . . : 44-45-53-54-00-00
DHCP Enabled. . . . . . . . : Yes
IP Address. . . . . . . . . : 140.186.114.232
Subnet Mask . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . : 140.186.114.232
DHCP Server . . . . . . . . : 255.255.255.255
Primary WINS Server . . . . :
Secondary WINS Server . . . :
Lease Obtained. . . . . . . : 01 01 80 12:00:00 AM
Lease Expires . . . . . . . : 01 01 80 12:00:00 AM
1 Ethernet adapter :
Description . . . . . . . . : Linksys LNE100TX Fast Ethernet Adapter
Physical Address. . . . . . : 00-A0-CC-E7-51-D4
DHCP Enabled. . . . . . . . : No
IP Address. . . . . . . . . : 140.186.114.235
Subnet Mask . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . :
Primary WINS Server . . . . :
Secondary WINS Server . . . :
Lease Obtained. . . . . . . :
Lease Expires . . . . . . . :
And the routing table that works under Win98
Active Routes:
Network Address Netmask Gateway Address Interface Metric
0.0.0.0 0.0.0.0 140.186.114.232 140.186.114.232 1
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
140.186.0.0 255.255.0.0 140.186.114.232 140.186.114.232 1
140.186.114.0 255.255.255.0 140.186.114.232 140.186.114.232 1
140.186.114.0 255.255.255.0 140.186.114.235 140.186.114.235 2
140.186.114.232 255.255.255.255 127.0.0.1 127.0.0.1 1
140.186.114.235 255.255.255.255 127.0.0.1 127.0.0.1 1
140.186.255.255 255.255.255.255 140.186.114.235 140.186.114.235 1
224.0.0.0 224.0.0.0 140.186.114.235 140.186.114.235 1
224.0.0.0 224.0.0.0 140.186.114.232 140.186.114.232 1
255.255.255.255 255.255.255.255 140.186.114.232 140.186.114.232 1
The corresponding ifconfig under Linux is:
eth0 Link encap:Ethernet HWaddr 00:A0:CC:E7:51:D4
inet addr:140.186.114.235 Bcast:140.186.114.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:166 errors:0 dropped:0 overruns:0 frame:0
TX packets:220 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
Interrupt:10 Base address:0x1800
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:3924 Metric:1
RX packets:398 errors:0 dropped:0 overruns:0 frame:0
TX packets:398 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
ppp0 Link encap:Point-to-Point Protocol
inet addr:140.186.114.232 P-t-P:140.186.114.3 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1006 Metric:1
RX packets:235 errors:1 dropped:0 overruns:0 frame:1
TX packets:183 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:10
And the routing table for Linux
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
140.186.114.3 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0
140.186.114.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
0.0.0.0 140.186.114.3 0.0.0.0 UG 0 0 0 ppp0
Anyone see the trouble?
Be seeing you,
norm
--
Norman Walsh <ndw@nwalsh.com> | No victor believes in chance.--Nietzsche
http://nwalsh.com/ |
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