Red Hat Bugzilla – Full Text Bug Listing
|Summary:||"peth0 received packet on own address" seen in normal config of Xen|
|Product:||[Fedora] Fedora||Reporter:||Russell McOrmond <russell>|
|Component:||xen||Assignee:||Herbert Xu <herbert.xu>|
|Status:||CLOSED DUPLICATE||QA Contact:||Brian Brock <bbrock>|
|Version:||5||CC:||bstein, katzj, mcr|
|Fixed In Version:||Doc Type:||Bug Fix|
|Doc Text:||Story Points:||---|
|Last Closed:||2006-09-18 12:13:19 EDT||Type:||---|
|oVirt Team:||---||RHEL 7.3 requirements from Atomic Host:|
Description Russell McOrmond 2006-08-19 14:42:57 EDT
Description of problem: If you run more than one Xen on the same LAN there is a conflict between the use of a static HW address for peth0 and the ICMPv6 Neighbor Solicitation that happens for IPv6. You can read a description of the problem at http://lists.xensource.com/archives/html/xen-devel/2006-04/msg01305.html I believe the solution would be to have the default Xen scripts that set up peth0 and the various vif?.0 interfaces to configure them without IPv6 enabled on those interfaces. I don't want to globally turn off IPv6 for other interfaces, just for those set up by Xen that would otherwise be duplicates. Bug also discussed in http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=339 It would be great if the "External Bugzilla" part of this form would also be able to link to Xensource.
Comment 1 Michael Richardson 2006-09-16 09:03:00 EDT
if we can't prevent the IPv6 link-local address from being auto-configured, then we need to make sure that the MAC given to peth0 is unique. My suggestion is that the 10:00:00 OUI is a "local use" OUI, and that we set the MAC to: 10:00:00:XX:YY:ZZ, where XX,YY,ZZ are the local three octets of the IPv4. That ought to be unique on the local LAN, assuming that there are no duplicate IPv4, and assuming that there aren't multiple /8's with overlapping addresses.
Comment 2 Russell McOrmond 2006-09-16 15:42:02 EDT
While not a long-term solution (I like Mike Richardson's suggestion), I wanted to post a note about what I did to get rid of the messages on my own LAN. In /etc/rc.d/rc.local I have added the following lines: ip addr del fe80::fcff:ffff:feff:ffff/64 dev peth0 ip addr del fe80::200:ff:fe00:0/64 dev xenbr0
Comment 3 Daniel Berrange 2006-09-18 10:06:20 EDT
> It would be great if the "External Bugzilla" part of this form would also be > able to link to Xensource. FYI, the XenSource bugzilla is now available in the drop-down.