* [Bridge] Error in Bridge Settings!!
@ 2006-06-28 14:30 Kirti S. Bajwa
2006-06-29 6:35 ` Etienne Pretorius
0 siblings, 1 reply; 3+ messages in thread
From: Kirti S. Bajwa @ 2006-06-28 14:30 UTC (permalink / raw)
To: bridge
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Hello Bridge List:
Please help a newbie!
I have setup two freshly installed CentOS 4.3 servers and have setup
redundant BRIDGE. My plan is to have the 'redundant' BRIDGE working and then
I will add 'Shorewall' Firewall to these two servers. On both machines, I
have included the following lines in '/etc/rc.local' so that the BRIDGE will
be ACTIVE after BOOT:
/etc/rc.local
=========
# Setup BRIDGE (First Bridge)
brctl addbr tibbr1
brctl addif tibbr1 eth0
brctl addif tibbr1 eth1
ifconfig tibbr1 up
ifconfig tibbr1 12.21.237.2 netmask 255.255.255.0
brctl setageing tibbr1 300
brctl stp tibbr1 on
brctl setbridgeprio tibbr1 100
brctl setpathcost tibbr1 eth0 100
brctl setpathcost tibbr1 eth1 100
reboot
=========
Similar lines are included in the second server except the bridge name is
'tibbr2', IP addr is 12.21.237.4 & bridge & path costs are 200.
MAC addresses on each server are as follows:
Server 1:
eth0: 00:80:ad:16:f3:25
eth1: 00:30:1b:38:c6:41
Server 2:
eth0: 00:80:ad:16:e6:43
eth1: 00:30:1b:38:c4:c9
PROBLEM:
-------------
When I boot one of the servers, I get the following errors:
eth1: received packet with own address as source address
eth0: received packet with own address as source address
What are these errors & why they are appearing?
If I no-op (#) the following lines, the error disappear:
# ifconfig tibbr1 up
# ifconfig tibbr1 12.21.237.2 netmask 255.255.255.0
FYI, my current hardware setup is as follows:
T1 Line
|
Cisco 26XX Router
|
HUB -------> HUB (Current Network)
|
----------------------------
| eth0 |
fw1 fw2
| eth1 |
-----------------------------
|
HUB
|
(Future: additional Servers)
Please HELP! How can I fix the settings so the above listed PROBLEM is
resolved!!
Kirti
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Bridge] Error in Bridge Settings!!
2006-06-28 14:30 [Bridge] Error in Bridge Settings!! Kirti S. Bajwa
@ 2006-06-29 6:35 ` Etienne Pretorius
2006-06-29 14:34 ` Kirti S. Bajwa
0 siblings, 1 reply; 3+ messages in thread
From: Etienne Pretorius @ 2006-06-29 6:35 UTC (permalink / raw)
To: Kirti S. Bajwa, bridge
[-- Attachment #1: Type: text/plain, Size: 4007 bytes --]
Let me first explain that I have the same problem in my Ethernet bridge
setup.
What I have determined, that there is a loop in my network but STP is
preventing a packet broacast storm. I have switches instead of hubs but
my primary bridge is broadcasting packets somehow, because when I unplug
the primary's Ethernet from our internal network then those messages
stop appearing. I am in the process of re-setting up that bridge so that
*hopefully* I wont be seeing this message in future. I wander if it
might be the HUBs you using.... they might be broadcasting any packet to
all ports and so your bridge will receive its own packets back to it?
Like I said - I have the same problem, but the setup still works and I
am trying to remove loops in my network to see if that *really* is the
cause to the error message.
Kind Regards
Etienne
Kirti S. Bajwa wrote:
>
> Hello Bridge List:
>
>
>
> Please help a newbie!
>
>
>
> I have setup two freshly installed CentOS 4.3 servers and have setup
> redundant BRIDGE. My plan is to have the 'redundant' BRIDGE working
> and then I will add 'Shorewall' Firewall to these two servers. On both
> machines, I have included the following lines in '/etc/rc.local' so
> that the BRIDGE will be ACTIVE after BOOT:
>
>
>
> /etc/rc.local
>
> =========
>
> ** # ****Setup**** ****BRIDGE**** (****First**** ****Bridge****)**
>
> ** brctl addbr tibbr1**
>
> ** brctl addif tibbr1 eth0**
>
> ** brctl addif tibbr1 eth1**
>
> ** ifconfig tibbr1 up**
>
> ** ifconfig tibbr1 12.21.237.2 netmask 255.255.255.0**
>
> ** brctl setageing tibbr1 300**
>
> ** brctl stp tibbr1 on**
>
> ** brctl setbridgeprio tibbr1 100**
>
> ** brctl setpathcost tibbr1 eth0 100**
>
> ** brctl setpathcost tibbr1 eth1 100**
>
> *reboot *
>
>
>
> =========
>
> Similar lines are included in the second server except the bridge name
> is 'tibbr2', IP addr is 12.21.237.4 & bridge & path costs are 200.
>
> MAC addresses on each server are as follows:
>
>
>
> Server 1:
>
> eth0: 00:80:ad:16:f3:25
>
> eth1: 00:30:1b:38:c6:41
>
>
>
> Server 2:
>
> eth0: 00:80:ad:16:e6:43
>
> eth1: 00:30:1b:38:c4:c9
>
>
>
> PROBLEM:
>
> -------------
>
> When I boot one of the servers, I get the following errors:
>
>
>
> eth1: received packet with own address as source address
>
> eth0: received packet with own address as source address
>
>
>
> What are these errors & why they are appearing?
>
>
>
> If I no-op (#) the following lines, the error disappear:
>
>
>
> **# ifconfig tibbr1 up**
>
> **# ifconfig tibbr1 12.21.237.2 netmask 255.255.255.0**
>
>
>
>
>
> FYI, my current hardware setup is as follows:
>
>
>
> T1 Line
>
> |
>
> Cisco 26XX Router
>
> |
>
> HUB -----à HUB (Current Network)
>
> |
>
> ----------------------------
>
> | eth0
> |
>
> fw1 fw2
>
> | eth1 |
>
> -----------------------------
>
> |
>
> HUB
>
> |
>
> (Future: additional Servers)
>
>
>
> Please HELP! How can I fix the settings so the above listed PROBLEM is
> resolved!!
>
>
>
> Kirti
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Bridge mailing list
> Bridge@lists.osdl.org
> https://lists.osdl.org/mailman/listinfo/bridge
>
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Bridge] Error in Bridge Settings!!
2006-06-29 6:35 ` Etienne Pretorius
@ 2006-06-29 14:34 ` Kirti S. Bajwa
0 siblings, 0 replies; 3+ messages in thread
From: Kirti S. Bajwa @ 2006-06-29 14:34 UTC (permalink / raw)
To: bridge
[-- Attachment #1: Type: text/plain, Size: 4106 bytes --]
Etienne:
Your response makes sense. In my case, if I enter the script manually, the
message goes away. That's why your response makes sense. Since the process
works, I am going to leave it to that.
Thanks.
Kirti
-----Original Message-----
From: Etienne Pretorius [mailto:etiennep@kingsley.co.za]
Sent: Thursday, June 29, 2006 2:35 AM
To: Kirti S. Bajwa; bridge@lists.osdl.org
Subject: Re: [Bridge] Error in Bridge Settings!!
Let me first explain that I have the same problem in my Ethernet bridge
setup.
What I have determined, that there is a loop in my network but STP is
preventing a packet broacast storm. I have switches instead of hubs but my
primary bridge is broadcasting packets somehow, because when I unplug the
primary's Ethernet from our internal network then those messages stop
appearing. I am in the process of re-setting up that bridge so that
*hopefully* I wont be seeing this message in future. I wander if it might be
the HUBs you using.... they might be broadcasting any packet to all ports
and so your bridge will receive its own packets back to it? Like I said - I
have the same problem, but the setup still works and I am trying to remove
loops in my network to see if that *really* is the cause to the error
message.
Kind Regards
Etienne
Kirti S. Bajwa wrote:
Hello Bridge List:
Please help a newbie!
I have setup two freshly installed CentOS 4.3 servers and have setup
redundant BRIDGE. My plan is to have the 'redundant' BRIDGE working and then
I will add 'Shorewall' Firewall to these two servers. On both machines, I
have included the following lines in '/etc/rc.local' so that the BRIDGE will
be ACTIVE after BOOT:
/etc/rc.local
=========
# Setup BRIDGE (First Bridge)
brctl addbr tibbr1
brctl addif tibbr1 eth0
brctl addif tibbr1 eth1
ifconfig tibbr1 up
ifconfig tibbr1 12.21.237.2 netmask 255.255.255.0
brctl setageing tibbr1 300
brctl stp tibbr1 on
brctl setbridgeprio tibbr1 100
brctl setpathcost tibbr1 eth0 100
brctl setpathcost tibbr1 eth1 100
reboot
=========
Similar lines are included in the second server except the bridge name is
'tibbr2', IP addr is 12.21.237.4 & bridge & path costs are 200.
MAC addresses on each server are as follows:
Server 1:
eth0: 00:80:ad:16:f3:25
eth1: 00:30:1b:38:c6:41
Server 2:
eth0: 00:80:ad:16:e6:43
eth1: 00:30:1b:38:c4:c9
PROBLEM:
-------------
When I boot one of the servers, I get the following errors:
eth1: received packet with own address as source address
eth0: received packet with own address as source address
What are these errors & why they are appearing?
If I no-op (#) the following lines, the error disappear:
# ifconfig tibbr1 up
# ifconfig tibbr1 12.21.237.2 netmask 255.255.255.0
FYI, my current hardware setup is as follows:
T1 Line
|
Cisco 26XX Router
|
HUB -------> HUB (Current Network)
|
----------------------------
| eth0 |
fw1 fw2
| eth1 |
-----------------------------
|
HUB
|
(Future: additional Servers)
Please HELP! How can I fix the settings so the above listed PROBLEM is
resolved!!
Kirti
_____
_______________________________________________
Bridge mailing list
Bridge@lists.osdl.org
https://lists.osdl.org/mailman/listinfo/bridge
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2006-06-28 14:30 [Bridge] Error in Bridge Settings!! Kirti S. Bajwa
2006-06-29 6:35 ` Etienne Pretorius
2006-06-29 14:34 ` Kirti S. Bajwa
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