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Old 12-13-2001, 09:35 PM   #1
sancho5
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Registered: Jul 2001
Location: Utah
Distribution: RedHat v7.3, OpenBSD 3.3, FreeBSD 5.0
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Aargh!!! Not routing to local subnet


I have a freshly installed RedHat 7.2 (very basic install, at that) and thought I had the network configured right, until I try to hit any computers besides localhost. Some details:

localhost (127.0.0.1)
oracle (10.0.0.253) {our problem host}
LAN: 10.0.0.0/24

I have a host on the network who are fully connected to the LAN and the Internet. When I try to ping them:

From 10.0.0.253: Destination Host Unreachable
From 10.0.0.253: Destination Host Unreachable
From 10.0.0.253: Destination Host Unreachable
From 10.0.0.253: Destination Host Unreachable

ifconfig:
eth0 Link encap:Ethernet HWaddr 00:08:C7:F4:D1:43
inet addr:10.0.0.253 Bcast:10.0.0.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:11 Base address:0x6200

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:520 errors:0 dropped:0 overruns:0 frame:0
TX packets:520 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:49340 (48.1 Kb) TX bytes:49340 (48.1 Kb)

route -n:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.0.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 10.0.0.1 0.0.0.0 UG 0 0 0 eth0

As you might guess, 10.0.0.1 is the address of my gateway, hence the default route of 0.0.0.0.

With this configuration, why am I not able to hit other hosts? There is no firewall rules set on any of my boxes; I have checked physical connectivity (link light on the nic and the switch on all ports) and don't know what it could be. I even deleted and recreated the route entry for the 10.0.0.0 subnet and recreated it. Any ideas?
Thx
 
Old 12-16-2001, 02:17 PM   #2
DavidPhillips
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Registered: Jun 2001
Location: South Alabama
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maybe a bad cable or other hardware problem?

are you pinging 10.0.0.1
 
Old 12-16-2001, 05:13 PM   #3
sancho5
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Registered: Jul 2001
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Distribution: RedHat v7.3, OpenBSD 3.3, FreeBSD 5.0
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i've tried a couple of cables; i am pretty sure the error message isn't referring to physical media, or it wouldn't be complaining about the lack of a route to host.
i've tried pinging 10.0.0.1, 10.0.0.3, and 10.0.0.251, 3 hosts on my local subnet that are live. same error.
 
Old 02-09-2004, 04:43 AM   #4
nette
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Registered: Feb 2004
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hi sancho, were you able to solve this? i'm having the same problem!!!! argh.
any useful info would be greatly appreciated!!!
 
Old 02-10-2004, 12:48 AM   #5
DavidPhillips
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What's in /etc/hosts?
 
Old 02-10-2004, 03:11 AM   #6
nightjar
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oracle is other host?
can you ping from oracle?
 
  


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