Greetings,
Color me perplexed.
We just purchased a new compute node for our computing cluster. All the
compute nodes are currently running SL4.4 x86_64 and are interconnected
on the 192.168.1.0 private network.
I have a clean install of SL5 x86_64 (from CDs) on the new box. The only
software selection I checked was [X] GUI Server (I may have the word
order or capitalization wrong).
The box has two NICs. eth0 is configured for the private network, and
eth1 is set to DHCP, not active on boot (and it's not connected to
anything).
Of the "first boot" selections, the only thing I changed was to disable
the firewall.
When I found I couldn't ping the gateway, I immediately rebooted ('cause
I'm lazy and I wasn't sure disabling the firewall "took"). No change.
Here's some hopefully relevant information:
[root@kappa ~]# /sbin/ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:A0:D1:E5:E9:EC
inet addr:192.168.1.10 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::2a0:d1ff:fee5:e9ec/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:65 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:8742 (8.5 KiB)
Interrupt:58 Base address:0x8000
[root@kappa ~]# netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth0
[root@kappa ~]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 kappa localhost.localdomain localhost
::1 localhost6.localdomain6 localhost6
ot@kappa ~]# ping -c2 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
From 192.168.1.10 icmp_seq=1 Destination Host Unreachable
From 192.168.1.10 icmp_seq=2 Destination Host Unreachable
--- 192.168.1.1 ping statistics ---
2 packets transmitted, 0 received, +2 errors, 100% packet loss, time 999ms
, pipe 2
[root@kappa ~]#
The NIC and switch to which it's attached are fully functional. I
created the above notes under SL5 and then rebooted the box with the
System Rescue CD, started sshd, mounted the SL / drive, and scp'd the
notes file to another node on the private network. All without issue.
I'm sure it's something obvious by it's surely escaping my notice. All
suggestions appreciated.
Cheers,
Pann
Oh, yes. I have two other SL5 x68_64 boxes running fine, one on that
same private network (significantly different hardware, however).
--
Pann McCuaig <[log in to unmask]> 212-854-8689
Systems Coordinator, Economics Department, Columbia University
Department Computing Resources:
http://www.columbia.edu/cu/economics/computing/
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