[Bridge] Error in Bridge Settings!!
Etienne Pretorius
etiennep at kingsley.co.za
Wed Jun 28 23:35:03 PDT 2006
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
>
> =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 *
>
> =
>
> =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:
>
> =
>
> 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 -----=E0 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 at lists.osdl.org
> https://lists.osdl.org/mailman/listinfo/bridge
> =
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