problems about network settings
loody
miloody at gmail.com
Sun Oct 4 11:40:36 UTC 2009
Dear all:
I got 2 machines on the same switch.
Everything, except ip and distributions, one is mythubuntu and another
is Ubuntu with Gnome, is the same on these 2 machines, at least in my
mind.
But one can connect to the gatway but another cannot.
I don't think it is due to different distribution, but I have compare
everything I could on these 2 machines.
( I list ifconfig and route table at the end of letter)
is there any tool or command could help me to know where the problem is?
appreciate your help,
miloody
the setting of the fail one:
eth0 Link encap:Ethernet HWaddr 00:11:25:d3:8c:11
inet addr:172.20.87.209 Bcast:172.20.87.255 Mask:255.255.254.0
inet6 addr: fe80::211:25ff:fed3:8c11/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:163 errors:0 dropped:0 overruns:0 frame:0
TX packets:178 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:10919 (10.9 KB) TX bytes:89622 (89.6 KB)
Interrupt:16
$ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
172.20.86.0 * 255.255.254.0 U 1 0 0 eth0
link-local * 255.255.0.0 U 1000 0 0 eth0
default 172.20.87.254 0.0.0.0 UG 0 0 0 eth0
the setting of the passing one
eth0 Link encap:Ethernet HWaddr 00:11:09:3f:c4:96
inet addr:172.20.87.211 Bcast:172.20.87.255 Mask:255.255.254.0
inet6 addr: fe80::211:9ff:fe3f:c496/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:4504 errors:0 dropped:0 overruns:0 frame:0
TX packets:327 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:384149 (384.1 KB) TX bytes:49258 (49.2 KB)
Interrupt:22
$ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
172.20.86.0 * 255.255.254.0 U 1 0 0 eth0
link-local * 255.255.0.0 U 1000 0 0 eth0
default 172.20.87.254 0.0.0.0 UG 0 0 0 eth0
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