From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Kirti S. Bajwa" Date: Thu, 29 Jun 2006 10:34:12 -0400 Message-ID: <00e001c69b89$175eee40$20ed150c@SunShine> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00E1_01C69B67.904D4E40" In-Reply-To: <44A37497.4010108@kingsley.co.za> Subject: Re: [Bridge] Error in Bridge Settings!! List-Id: Linux Ethernet Bridging List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: bridge@lists.osdl.org This is a multi-part message in MIME format... ------=_NextPart_000_00E1_01C69B67.904D4E40 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Etienne: =20 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. =20 Thanks. =20 Kirti =20 -----Original Message----- From: Etienne Pretorius [mailto:etiennep@kingsley.co.za]=20 Sent: Thursday, June 29, 2006 2:35 AM To: Kirti S. Bajwa; bridge@lists.osdl.org Subject: Re: [Bridge] Error in Bridge Settings!! =20 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:=20 Hello Bridge List: =20 Please help a newbie! =20 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: =20 /etc/rc.local =3D=3D=3D=3D=3D=3D=3D=3D=3D # 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=20 =20 =3D=3D=3D=3D=3D=3D=3D=3D=3D 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: =20 Server 1: eth0: 00:80:ad:16:f3:25 eth1: 00:30:1b:38:c6:41 =20 Server 2: eth0: 00:80:ad:16:e6:43 eth1: 00:30:1b:38:c4:c9 =20 PROBLEM: ------------- When I boot one of the servers, I get the following errors: =20 eth1: received packet with own address as source address eth0: received packet with own address as source address =20 What are these errors & why they are appearing?=20 =20 If I no-op (#) the following lines, the error disappear: =20 # ifconfig tibbr1 up # ifconfig tibbr1 12.21.237.2 netmask 255.255.255.0 =20 =20 FYI, my current hardware setup is as follows: =20 T1 Line | Cisco 26XX Router | HUB -------> HUB (Current Network) | ---------------------------- | eth0 |=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20 fw1 fw2=20=20=20=20=20=20=20= =20=20=20=20=20=20=20 | eth1 | ----------------------------- | HUB | (Future: additional Servers) =20 Please HELP! How can I fix the settings so the above listed PROBLEM is resolved!! =20 Kirti =20 _____=20=20 =20 _______________________________________________ Bridge mailing list Bridge@lists.osdl.org https://lists.osdl.org/mailman/listinfo/bridge =20=20 ------=_NextPart_000_00E1_01C69B67.904D4E40 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline

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 th= at.

 

Thanks.

 

Kirti

 

-----Original Message-----
From: Etienne Preto= rius [mailto:etiennep@kingsley.co.za]
Sent: Thursday, June 29, 2006 2:= 35 AM
To: Kirti S. Bajwa; bridge@lists.osdl.org
Subject: Re: [Bridg= e] Error in Bridge Settings!!

 

Let me f= irst 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 *hopefu= lly* I wont be seeing this message in future. I wander if it might be the HUBs y= ou using.... they might be broadcasting any packet to all ports and so your br= idge will receive its own packets back to it? Like I said - I have the same prob= lem, 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<= span DEFANGED_defanged_style=3D"font-size:10.0pt;font-family:Arial"> Bridge List:<= /font>

 <= /font>

Please help a newbie!=

 <= /font>

I have setup two freshly installed Cent= OS 4.3 servers and have setup redundant BRIDGE. My plan is to have the ‘redundant= 217; BRIDGE working and then I will add ‘Shorewall’ Firewall to these two servers. On both machines, I have included the following lines in ̵= 6;/etc/rc.local’ so that the BRIDGE will be ACTIVE after BOOT:

 

/etc/rc.local

=3D=3D=3D=3D=3D=3D=3D=3D=3D

 # Setup BRIDGE (<= b>First Bridge= )

 brctl   addbr       tibbr1

 brctl   addif   &nbs= p;    tibbr1  eth0

 brctl   addif   &nbs= p;    tibbr1  eth1

 ifconfig   tibbr1  up

 ifconfig   tibbr1  12.21.237.2=    netmask   255.255.255.0<= /p>

 brctl   setageing   tibbr= 1  300

 brctl   stp   tibbr1 = ;   on

 brctl   setbridgeprio   tibbr1   100

 brctl   setpathcost  tibbr1&nb= sp; eth0  100

 brctl   setpathcost  tibbr1&nb= sp; eth1  100

 reboot

 

=3D=3D=3D=3D=3D=3D=3D=3D=3D

Similar lines are included in the secon= d 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 fol= lows:

 

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 t= he 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 ar= e 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<= /p>

 

 

FYI, my current hardware setup is as fo= llows:

 

      &nb= sp;            =            T1 Line

      &nb= sp;            =             &nb= sp;     |

      &nb= sp;            =    Cisco 26XX Router

      &nb= sp;            =                &nb= sp;  |

      &nb= sp;                      &nb= sp;   HUB -----à HUB = (Current Network)

      &nb= sp;            =             &nb= sp;     |

      &nb= sp;        ----------------------------

      &nb= sp;        |            &n= bsp;     eth0               &nb= sp;|            = ;       

      &nb= sp;      fw1       =                      &nb= sp;      fw2     &nb= sp;       

      &nb= sp;        |            &n= bsp;     eth1            &nbs= p;   |

      &nb= sp;       -----------------------------

      &nb= sp;            =             &nb= sp;     |

      &nb= sp;            =             &nb= sp; HUB

      &nb= sp;            =             &nb= sp;     |

      &nb= sp;      (Future: additional Servers)

 

Please HELP! How can I fix the settings= so the above listed PROBLEM is resolved!!

 

Kirti

 






 
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