Merged... This patch addresses similar issues with iOS devices which appear to pay attention to the router flag...
Thanks... Dave From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of Petr Boltík Sent: Sunday, November 6, 2022 4:09 AM To: vpp-dev@lists.fd.io Subject: Re: [vpp-dev] Bug report - IP6 ND RA default route disappear from host device Hi Matt, Thank you. I can confirm that your fix works. Now I can continue to deploy ipv6 using kea dhcpv6 (without static configuration). Best regards Petr B. ne 6. 11. 2022 v 0:13 odesílatel Petr Boltík via lists.fd.io <http://lists.fd.io> <petr.boltik=gmail....@lists.fd.io <mailto:gmail....@lists.fd.io> > napsal: Hi Matt, Than you so much. I will test it as soon as possible. Petr Dne so 5. 11. 2022 21:44 uživatel Matthew Smith via lists.fd.io <http://lists.fd.io> <mgsmith=netgate....@lists.fd.io <mailto:netgate....@lists.fd.io> > napsal: Hi Petr, You didn't miss any configuration. I don't see any place where the router flag is set on an NA in current VPP master branch code. Can you test with https://gerrit.fd.io/r/c/vpp/+/37582 applied and see if it addresses the issue? -Matt On Fri, Nov 4, 2022 at 1:49 PM Petr Boltík <petr.bol...@gmail.com <mailto:petr.bol...@gmail.com> > wrote: Hi, Thanks for your reply. I did a packet capture using Wireshark to compare RA from the VPP/MikroTik/Radvd. There is no problem with routing advertisements from VPP, but with Neighbor Advertisement when RA is enabled. ICMP v6 flag is not set correctly - The Router flag is NOT set on the VPP side. Debian 11 ignores this, Windows and a few others remove the default gateway after receiving this neighbor advertisement. Wireshark .pcapng in the link. I use the Kea6 dhcp6 server for prefix delegation + VPP for RA (not using radvd - only for testing). Many users want to use VPP as a home gateway and IPv6 RA not working correctly with various end-user devices (like windows for this testing scenario). VPP RA+ND - line 914 MikroTik RA+ND - line 819 https://easyupload.io/m/xwvqjj If I missed something in the configuration of VPP, please let me know. I did not find any relevant CLI Best regards Petr pá 4. 11. 2022 v 13:25 odesílatel Benoit Ganne (bganne) via lists.fd.io <http://lists.fd.io> <bganne=cisco....@lists.fd.io <mailto:cisco....@lists.fd.io> > napsal: Hi Petr, Unfortunately I can't confirm the issue, but I do not think it is a very commonly tested scenario so it is not really surprising... What could help understand the issue would be if you could capture the RA traffic in both scenarios (VPP vs radvd) so we can compare. Best ben > -----Original Message----- > From: vpp-dev@lists.fd.io <mailto:vpp-dev@lists.fd.io> <vpp-dev@lists.fd.io > <mailto:vpp-dev@lists.fd.io> > On Behalf Of Petr Boltík > Sent: Friday, November 4, 2022 12:50 > To: vpp-dev <vpp-dev@lists.fd.io <mailto:vpp-dev@lists.fd.io> > > Subject: Re: [vpp-dev] Bug report - IP6 ND RA default route disappear from > host device > > Hi all, > > Can someone please confirm this VPP IP6 RA issue? Any idea is welcome. I > already tested the latest VPP build v23.02-rc0~96-ge69d97438~b598 with no > success. Installed default IP6 GW on Windows7/10/UBNTairOS disappeared > after a short time. Thanks > > Best regards > Petr B. > > pá 28. 10. 2022 v 18:37 odesílatel Petr Boltík <petr.bol...@gmail.com > <mailto:petr.bol...@gmail.com> > <mailto:petr.bol...@gmail.com <mailto:petr.bol...@gmail.com> > > napsal: > > > Hi all, > > I have discovered the problem with IP6 ND RA receiving side - it > can be observed on Windows 10/7/UBNT airos8 and some others. Issue not > observed on the Debian 11+nmcli. Configuration is pretty straightforward. > Tested with VPP 22.06, 22.10. Issue persists. VPP configuration is the > default, tested on APU4D4 and a few others. No linuxcp/nl is used. > > 1. configure VPP: > > set interface ip address GigabitEthernet3/0/0 2a01:500::1/64 > set interface state GigabitEthernet3/0/0 up > create loopback interface > set interface state loop0 up > set interface ip address loop0 2a01:400::1/64 > ip6 nd GigabitEthernet3/0/0 prefix 2a01:500::/64 default > ip6 nd GigabitEthernet3/0/0 no ra-suppress > > > > vpp# show version > > vpp v22.10-release built by root on 89a4591888eb at 2022-10- > 26T14:00:30 > > > 2. connect host Windows7/10/ubnt to the GigabitEthernet3/0/0 and > you can observe weird behavior > - RA from VPP is received, IP6 address is installed. Icmp echo to > the VPP link local address and configured 2a01:500::1 works. > - RA from VPP is received, IP6 default route is installed and > works. Icmp echo to the 2a01:400::1 works. > > > Issue: After stopping all icmp echo for a few seconds/minutes, IP6 > default route is removed from the host system, and the path to the > 2a01:400::1 is unknown for the host. The default route is removed - the > host device ignores ra-lifetime. > > LinuxCP/NL + RADVD sollution test: > I have already tried to solve this problem by using linuxcp/nl and > RADVD, but there is another issue. When radvd start, communication from > the external host to the link-local address stop passing. The host device > successfully receives prefix and default route, but the default route is > via the link-local address and the vpp link-local address is inaccessible > from the host device after radvd start. > > Best regards > Petr Boltik > >
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#22137): https://lists.fd.io/g/vpp-dev/message/22137 Mute This Topic: https://lists.fd.io/mt/94630760/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/leave/1480452/21656/631435203/xyzzy [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
