Wow! Found the error, but still can't believe it.
The system was previously set up under RH 6.2 with two PIC NICs, the onboard was disabled. The onboard and one NIC were 3com 3c509s. I've had the onboard disabled and been trying to use the NIC. Googling the problem I could find no definitive answers, but several people with similar, non-deterministic like problems. One person suggested that it was obvious that FC2 has a networking problem related to IRQs and many people have had probs with the 3c59x, yet many people say "What problems?"
TO make a long story short, I took out the 3c509 NIC and reenabled the onboard in the bios - everything is working now (at least, networking is, I'm about to install Oscar after dinner!)
Thanks, and I hope my trobles can help someone else before they spend hours banging their head against the screen.
Ron
On Wed, 09 Feb 2005 18:45:51 -0700 "R Hamann" <[EMAIL PROTECTED]> wrote:
On Wed, 9 Feb 2005 17:14:45 -0800 "Bernard Li" <[EMAIL PROTECTED]> wrote:[EMAIL PROTECTED] root]# ping 192.168.1.100Hey Ron:
Can you show some examples of 'pings on the inside net'?
I assume that you still have some hosts from your previous Scyld installation, are those hosts really still up on the network? Is it possible that they depended on the original headnode (now an OSCAR headnode) for DHCP?
Everything looks good from here...
Cheers,
Bernard
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of R Hamann
PING 192.168.1.100 (192.168.1.100) 56(84) bytes of data.
From 192.168.1.1 icmp_seq=0 Destination Host Unreachable
From 192.168.1.1 icmp_seq=1 Destination Host Unreachable
From 192.168.1.1 icmp_seq=2 Destination Host Unreachable
This is what it returns. In this case, I booted one disc with a livecd and manually assigned the address. Both machines are connected to the same switch. When I ping from the other machine, it returns nothing at all, the same way pinging a non-existent IP address usually works.
In this case, it doesn't even look like the machine is even accessing the net properly. I used the same livecd on the master and it worked fine, both internal and external networks.
This is really strange!
R
--- 192.168.1.100 ping statistics ---
5 packets transmitted, 0 received, +3 errors, 100% packet loss, time 3999ms
, pipe 4
Sent: Wednesday, February 09, 2005 15:41 To: [email protected] Subject: [Oscar-users] Destination host unreachable
I just did a fresh install of Fedora Core 2 on a machine that will be the master for an Oscar cluster. It was a Scyld cluster, and the upgrade didn't work. The ooutside NIC worked fine, the pings on the inside net kept returning "Destination Host Unreachable."
So I followed my lab manager's advice and teh advice of the Oscar docs and Bernard and reloaded Fedora from scratch.
Still, same problem. The internal NIC is a 3c509 (Tornado) and the outside NIC is an Intel Ethernet pro 100.
I swiched the cards and cables so the outside NIC is the 3c509 and the inside NIC is the Intel. Same error.
Is there some trick to a dual-netted box that I don't know?
R
(some info below, real ip's camoflaged)
ifconfig results:
[EMAIL PROTECTED] root]# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:50:DA:58:45:7B
inet addr:1xx.1xx.1xx.xx Bcast:1xx.1xx.1xx.255 Mask:255.255.255.0
inet6 addr: fe80::250:daff:fe58:457b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:22548 errors:0 dropped:0 overruns:1 frame:0
TX packets:16375 errors:0 dropped:0 overruns:0 carrier:0
collisions:1335 txqueuelen:1000
RX bytes:23087629 (22.0 Mb) TX bytes:1948423 (1.8 Mb)
Interrupt:9 Base address:0xdc00
[EMAIL PROTECTED] root]# ifconfig eth2
eth2 Link encap:Ethernet HWaddr 00:90:27:34:5F:6B
inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::290:27ff:fe34:5f6b/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:1206 errors:0 dropped:0 overruns:1206 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:50820 (49.6 Kb)
Interrupt:10 Base address:0x4000
route results
[EMAIL PROTECTED] root]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth2
1xx.1xx.1xx.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 eth2
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 1xx.1xx.1xx.1 0.0.0.0 UG 0 0 0 eth0
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