Hi Cédric, 您好 :) I'm sorry that I missed the mail. But currently I can not reproduce it. For the error by net-create, it is executed when I set accept_ra to 1.
I have just test on libvirt-3.2.0-4.el7.x86_64, the behavior changes, it seems like there is no check for accept_ra before start a network with ipv6. 1. define and start a network with ipv6 settings # virsh net-dumpxml default6 <network> <name>default6</name> <uuid>c502d02c-fbd0-49d9-91e4-0fcf0ef159d0</uuid> <forward mode='nat'/> <bridge name='virbr4' stp='on' delay='0'/> <mac address='52:54:00:04:d5:3c'/> <ip address='192.168.10.1' netmask='255.255.255.0'> <dhcp> <range start='192.168.10.2' end='192.168.10.254'/> </dhcp> </ip> <ip family='ipv6' address='2001:db8:ca2:2::1' prefix='64'> <dhcp> <range start='2001:db8:ca2:2:1::10' end='2001:db8:ca2:2:1::ff'/> </dhcp> </ip> </network> # cat /proc/sys/net/ipv6/conf/enp0s25/accept_ra 1 # virsh net-start default6 =====> the network can start as well with accept_ra=1 Network default6 started It seems that the "virNetDevIPGetAcceptRA()" in patch "network: check accept_ra before enabling ipv6 forwarding" with commit 00d28a78 is not executed when I start a network. Please help to check, Thank you. Best Regards, Yalan Zhang IRC: yalzhang Internal phone: 8389413 On Tue, Apr 18, 2017 at 5:54 PM, Cedric Bosdonnat <cbosdon...@suse.com> wrote: > Yalan 你好 > > On Mon, 2017-04-17 at 17:30 +0800, Yalan Zhang wrote: > > I have tested it, it works well. But the interface name will repeat 2 > times. > > Please help to confirm this, and if below test for a single port host is > enough? > > > > # cat /proc/sys/net/ipv6/conf/enp0s25/accept_ra > > 1 > > > > enable network default with ipv6 ip section > > > > # virsh net-start default > > error: Failed to start network default > > error: internal error: Check the host setup: enabling IPv6 forwarding > with RA routes without accept_ra set to 2 is > > likely to cause routes loss. Interfaces to look at: enp0s25, enp0s25 > > Just to help me confirm my intuition: do you have several RA routes defined > for the same device? > > > # echo 2 > /proc/sys/net/ipv6/conf/enp0s25/accept_ra > > > > # virsh net-start default > > Network default started > > > > try create: > > > > # virsh net-create default.xml > > error: Failed to create network from default.xml > > error: internal error: Check the host setup: enabling IPv6 forwarding > with RA routes without accept_ra set to 2 is > > likely to cause routes loss. Interfaces to look at: enp0s25, enp0s25 > > This one sounds weird: if the accept_ra is set to 2 as you report you did, > you shouldn't get that error. > > -- > Cedric > > > On Wed, Mar 15, 2017 at 10:45 PM, Cédric Bosdonnat <cbosdon...@suse.com> > wrote: > > > Hi Laine, all, > > > > > > Here is the v2 of my series. The changes are: > > > > > > * Add a commit to create a virNetDevGetName() function > > > * Fix Laine's comments > > > > > > Cédric Bosdonnat (5): > > > util: extract the request sending code from virNetlinkCommand() > > > util: add virNetlinkDumpCommand() > > > bridge_driver.c: more uses of SYSCTL_PATH > > > util: add virNetDevGetName() function > > > network: check accept_ra before enabling ipv6 forwarding > > > > > > src/libvirt_private.syms | 3 + > > > src/network/bridge_driver.c | 25 ++++--- > > > src/util/virnetdev.c | 19 ++++++ > > > src/util/virnetdev.h | 2 + > > > src/util/virnetdevip.c | 158 ++++++++++++++++++++++++++++++ > ++++++++++++++ > > > src/util/virnetdevip.h | 1 + > > > src/util/virnetlink.c | 145 ++++++++++++++++++++++++++++++ > ---------- > > > src/util/virnetlink.h | 9 +++ > > > 8 files changed, 319 insertions(+), 43 deletions(-) > > > > > > -- > > > 2.11.0 > > > > > > -- > > > libvir-list mailing list > > > libvir-list@redhat.com > > > https://www.redhat.com/mailman/listinfo/libvir-list > > > > > > >
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