[wplug] Networking Issue
Ryan Brown
wplug at tblive.com
Sat Feb 21 15:06:12 EST 2004
Jason showed me http://standards.ieee.org/regauth/oui/index.shtml
Where he looked up the MACs and saw that 2 were Dell and 1 was 3Com to
determine it.
Using the first 6 hex characters without colons.
00-0B-DB (hex) Dell ESG PCBA Test
000BDB (base 16) Dell ESG PCBA Test
One Dell Way
Round Rock Texas 78682
UNITED STATES
00-50-DA (hex) 3COM CORPORATION
0050DA (base 16) 3COM CORPORATION
5400 BAYFRONT PLAZA
MS: 4220
SANTA CLARA CA 95052
UNITED STATES
But ya the other 2 were just slightly off so I guess you could tell that
way.
RB
-----Original Message-----
From: Robert E. Coutch [mailto:robert.coutch at verizon.net]
Sent: Saturday, February 21, 2004 2:53 PM
To: wplug at wplug.org
Subject: Re: [wplug] Networking Issue
I was just wondering how he determined this.
Did he guess that the two hardware addresses that were only 1 digit away
were
the two built in nics and therefore the eth0 was bound to the other nic?
That's pretty sharp cause I was just about to ask to see your modules.conf .
Thanks for any info,
Bob
On Saturday 21 February 2004 01:36 pm, Ryan Brown wrote:
> I'm all set, eth0 and eth2 were swapped. Thanks goes to Jason Sopko for
> noticing the mac difference.
>
> Ryan
>
> -----Original Message-----
> From: Ryan Brown [mailto:wplug at tblive.com]
> Sent: Saturday, February 21, 2004 1:03 PM
> To: wplug at wplug.org
> Subject: [wplug] Networking Issue
>
> Hopefully someone has had this problem and knows of a solution...
>
> I have a Dell Poweredge 2650 (Gentoo) with 2 onboard gigabit nics (eth0
> (192.168.0.1) and eth1 (192.168.1.1)), it also has a PCI 3com 905C TX
> 10/100 nic which is eth2 (192.217.247.61)
>
> My problem... I cannot get this machine to connect to the internet via
> eth2. It needs to use eth2 as 0 and 1 are onboard gigabit which I use for
a
> local NFS network. I know for 100 % certainty that all of my hardware is
> good and functioning. I installed Gentoo using the eth2 3com nic off the
> Live CD with no problem connecting to the internet. I have tried a
> different patch cable which I knew was good (works fine on another server)
> and also other switch ports I know for sure work with other servers).
>
> My gateway for the internet is 192.217.247.1 (and this is set as the
> default gateway on eth2). The LEDs on the nic are lite green, and the
> switch port is also green and in forwarding mode (just like all the other
> ports on the switch with servers connected). The port speed is set for
auto
> (I have tried 100 full duplex and 100 half duplex as well and with and
> without flow control).
>
> Below are my attached config files and console outputs.
>
> Thanks
> Ryan
>
> ------------------------
> rogue root # ifconfig
> eth0 Link encap:Ethernet HWaddr 00:50:DA:84:99:A3
> inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:370448 errors:0 dropped:0 overruns:1 frame:0
> TX packets:14937 errors:0 dropped:0 overruns:0 carrier:21
> collisions:163 txqueuelen:1000
> RX bytes:32532909 (31.0 Mb) TX bytes:5314833 (5.0 Mb)
> Interrupt:16 Base address:0xdc80
>
> eth1 Link encap:Ethernet HWaddr 00:0B:DB:E6:B6:B9
> inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:26 errors:0 dropped:0 overruns:0 frame:0
> TX packets:60 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:2234 (2.1 Kb) TX bytes:4576 (4.4 Kb)
> Interrupt:28
>
> eth2 Link encap:Ethernet HWaddr 00:0B:DB:E6:B6:BA
> inet addr:192.217.247.53 Bcast:192.217.247.255
> Mask:255.255.255.0
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:16510 errors:0 dropped:0 overruns:0 frame:0
> TX packets:236209 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:1412966 (1.3 Mb) TX bytes:23983875 (22.8 Mb)
> Interrupt:29
>
> 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:234501 errors:0 dropped:0 overruns:0 frame:0
> TX packets:234501 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
> RX bytes:19691200 (18.7 Mb) TX bytes:19691200 (18.7 Mb)
>
> -----------------------------
> rogue root # route -n
> Kernel IP routing table
> Destination Gateway Genmask Flags Metric Ref Use
> Iface
> 192.217.247.0 0.0.0.0 255.255.255.0 U 0 0 0
> eth2 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0
> 0 eth1 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0
> 0 eth0 127.0.0.0 127.0.0.1 255.0.0.0 UG 0 0
> 0 lo 0.0.0.0 192.217.247.1 0.0.0.0 UG 1 0
> 0 eth2
>
> ------------------------------
> # /etc/conf.d/net:
> # $Header: /home/cvsroot/gentoo-src/rc-scripts/etc/conf.d/net,v 1.7
> 2002/11/18 19:39:22 azarah Exp $
>
> # Global config file for net.* rc-scripts
>
> # This is basically the ifconfig argument without the ifconfig $iface
> #
> iface_eth0="192.168.0.1 broadcast 192.168.0.255 netmask 255.255.255.0"
> iface_eth1="192.168.1.1 broadcast 192.168.1.255 netmask 255.255.255.0"
> iface_eth2="192.217.247.61 broadcast 192.217.247.255 netmask
255.255.255.0"
> # For DHCP set iface_eth? to "dhcp"
> # For passing options to dhcpcd use dhcpcd_eth?
> #
> #iface_eth0="dhcp"
> #dhcpcd_eth0="..."
>
> # For adding aliases to a interface
> #
> #alias_eth0="192.168.0.3 192.168.0.4"
>
> # NB: The next is only used for aliases.
> #
> # To add a custom netmask/broadcast address to created aliases,
> # uncomment and change accordingly. Leave commented to assign
> # defaults for that interface.
> #
> #broadcast_eth0="192.168.0.255 192.168.0.255"
> #netmask_eth0="255.255.255.0 255.255.255.0"
>
>
> # For setting the default gateway
> #
> gateway="eth2/192.217.247.1"
>
> --------------------------------
>
> rogue root # ping 192.168.0.1
> PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.
> 64 bytes from 192.168.0.1: icmp_seq=1 ttl=64 time=0.031 ms
> 64 bytes from 192.168.0.1: icmp_seq=2 ttl=64 time=0.008 ms
>
> --- 192.168.0.1 ping statistics ---
> 2 packets transmitted, 2 received, 0% packet loss, time 999ms
> rtt min/avg/max/mdev = 0.008/0.019/0.031/0.012 ms
> rogue root #
> rogue root #
> rogue root # ping 192.168.1.1
> PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
> 64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=0.032 ms
> 64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=0.007 ms
> 64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=0.006 ms
>
> --- 192.168.1.1 ping statistics ---
> 3 packets transmitted, 3 received, 0% packet loss, time 1998ms
> rtt min/avg/max/mdev = 0.006/0.015/0.032/0.012 ms
> rogue root #
> rogue root #
> rogue root # ping 192.217.247.1
> PING 192.217.247.1 (192.217.247.1) 56(84) bytes of data.
> From 192.217.247.53 icmp_seq=2 Destination Host Unreachable
> From 192.217.247.53 icmp_seq=3 Destination Host Unreachable
> WARNING: failed to install socket filter
>
> : Protocol not available
>
> --- 192.217.247.1 ping statistics ---
> 4 packets transmitted, 0 received, +2 errors, 100% packet loss, time
3020ms
>
> -----------------------------
>
> This is a comparison of 2 Gentoo boxes, one works fine with 2 nics, and
> then is my box in issue with 3 nics that does not work.
>
> This one works fine
> sage root # route -n
> Kernel IP routing table
> Destination Gateway Genmask Flags Metric Ref Use
> Iface
> 192.217.247.0 0.0.0.0 255.255.255.0 U 0 0 0
> eth0 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0
> 0 eth1 127.0.0.0 127.0.0.1 255.0.0.0 UG 0 0
> 0 lo 0.0.0.0 192.217.247.1 0.0.0.0 UG 1 0
> 0 eth0
>
>
>
> The system that's the issue
> rogue root # route -n
> Kernel IP routing table
> Destination Gateway Genmask Flags Metric Ref Use
> Iface
> 192.217.247.0 0.0.0.0 255.255.255.0 U 0 0 0
> eth2 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0
> 0 eth1 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0
> 0 eth0 127.0.0.0 127.0.0.1 255.0.0.0 UG 0 0
> 0 lo 0.0.0.0 192.217.247.1 0.0.0.0 UG 1 0
> 0 eth2
>
>
>
>
>
>
>
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>
>
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