Date: Wed, 13 Mar 2024 21:09:32 +0800 From: Zhenlei Huang <zlei@FreeBSD.org> To: Benoit Chesneau <benoitc@enki-multimedia.eu> Cc: "freebsd-net@FreeBSD.org" <freebsd-net@freebsd.org>, Alexander Chernikov <melifaro@freebsd.org> Subject: Re: ipv4 route with ipv6 local link nexthop ? Message-ID: <764E12BF-5D31-4905-98AE-6D745BFD1DC2@FreeBSD.org> In-Reply-To: <367504DC-48DA-4DFD-9DB6-CC571F0D26B8@FreeBSD.org> References: <Kj1GA9KKe3wVoeEJr0g-4BAiin5cEjGj4ICYDH9LHBT_vpmctoN-2HNS7AjTwNimOVkn5nBoJw50fbLgNdCleBD0p_TZImOet1gFGIfr4-E=@enki-multimedia.eu> <367504DC-48DA-4DFD-9DB6-CC571F0D26B8@FreeBSD.org>
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--Apple-Mail=_E106DB28-5FB3-4813-8A52-A68C7ED42649 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 > On Mar 13, 2024, at 12:19 PM, Zhenlei Huang <zlei@FreeBSD.org> wrote: >=20 >=20 >=20 >> On Mar 13, 2024, at 4:36 AM, Benoit Chesneau = <benoitc@enki-multimedia.eu <mailto:benoitc@enki-multimedia.eu>> wrote: >>=20 >> On latest freebsd 14.0 release , I am trying to join an ipv4 address = over an IPV6 local link using the following command : >>=20 >> `route add -net 10.200.1.1/32 -inet6 = fe80::9439:36ff:fef0:7cbd%vlan200` >>=20 >> But I get the following error: >>=20 >> ``` >> route add -net 10.200.1.1/32 -inet6 fe80::9439:36ff:fef0:7cbd%vlan200 >> add net 10.200.1.1: gateway fe80::9439:36ff:fef0:7cbd%vlan200 fib 0: = Invalid argument >=20 > I guess that is regression by transition of route(8) to NETLINK. >=20 > Can you please build sbin/route from source without NETLINK and give = it another try ? >=20 > ``` > # cd /usr/src/sbin/route > # setenv MK_NETLINK_SUPPORT no > # make > ``` Hi Benoit, I managed to repeat this bug. As a workaround, add an IPv4 address to the outgoing interface (vlan200 = in your case), ``` # ifconfig vlan200 inet x.x.x.x/y ``` then retry adding the route ``` # route add -net 10.200.1.1/32 -inet6 fe80::9439:36ff:fef0:7cbd%vlan200 ``` >=20 >> ``` >>=20 >> ping6 to `fe80::9439:36ff:fef0:7cbd%vlan200` works. What I am doing = wrong? Configuration of the interface is the following: >>=20 >> ``` >> vlan200: = flags=3D1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP> metric = 0 mtu 1500 >> = options=3D4600703<RXCSUM,TXCSUM,TSO4,TSO6,LRO,RXCSUM_IPV6,TXCSUM_IPV6,MEXT= PG> >> ether fe:d9:dd:2d:35:c5 >> inet6 fe80::fcd9:ddff:fe2d:35c5%vlan200 prefixlen 64 scopeid = 0x5 >> groups: vlan >> vlan: 200 vlanproto: 802.1q vlanpcp: 0 parent interface: = iavf0 >> media: Ethernet autoselect (10Gbase-SR <full-duplex>) >> status: active >> nd6 options=3D23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL >> ``` >>=20 >>=20 >>=20 >> Beno=C3=AEt=20 >=20 > Best regards, > Zhenlei --Apple-Mail=_E106DB28-5FB3-4813-8A52-A68C7ED42649 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 <html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; = charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; = -webkit-nbsp-mode: space; line-break: after-white-space;" class=3D""><br = class=3D""><div><br class=3D""><blockquote type=3D"cite" class=3D""><div = class=3D"">On Mar 13, 2024, at 12:19 PM, Zhenlei Huang <<a = href=3D"mailto:zlei@FreeBSD.org" class=3D"">zlei@FreeBSD.org</a>> = wrote:</div><br class=3D"Apple-interchange-newline"><div class=3D""><meta = charset=3D"UTF-8" class=3D""><div style=3D"caret-color: rgb(0, 0, 0); = font-family: Helvetica; font-size: 13px; font-style: normal; = font-variant-caps: normal; font-weight: 400; letter-spacing: normal; = text-align: start; text-indent: 0px; text-transform: none; white-space: = normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; = text-decoration: none;" class=3D""><br = class=3D"Apple-interchange-newline"><br class=3D""><blockquote = type=3D"cite" class=3D""><div class=3D"">On Mar 13, 2024, at 4:36 AM, = Benoit Chesneau <<a href=3D"mailto:benoitc@enki-multimedia.eu" = class=3D"">benoitc@enki-multimedia.eu</a>> wrote:</div><br = class=3D"Apple-interchange-newline"><div class=3D""><div class=3D"" = style=3D"font-family: Arial, sans-serif; font-size: 14px;">On latest = freebsd 14.0 release , I am trying to join an ipv4 address over an IPV6 = local link using the following command :</div><div class=3D"" = style=3D"font-family: Arial, sans-serif; font-size: 14px;"><br = class=3D""></div><div class=3D"" style=3D"font-family: Arial, = sans-serif; font-size: 14px;"><span class=3D"">`route add -net = 10.200.1.1/32 -inet6 fe80::9439:36ff:fef0:7cbd%vlan200`</span><br = class=3D""></div><div class=3D"" style=3D"font-family: Arial, = sans-serif; font-size: 14px;"><span class=3D""><br = class=3D""></span></div><div class=3D"" style=3D"font-family: Arial, = sans-serif; font-size: 14px;"><span class=3D"">But I get the = following error:</span></div><div class=3D"" style=3D"font-family: = Arial, sans-serif; font-size: 14px;"><span class=3D""><br = class=3D""></span></div><div class=3D"" style=3D"font-family: Arial, = sans-serif; font-size: 14px;">```</div><div class=3D"" = style=3D"font-family: Arial, sans-serif; font-size: 14px;"><span = class=3D"">route add -net 10.200.1.1/32 -inet6 = fe80::9439:36ff:fef0:7cbd%vlan200</span><br class=3D""><span = class=3D"">add net 10.200.1.1: gateway fe80::9439:36ff:fef0:7cbd%vlan200 = fib 0: Invalid argument</span><br class=3D""></div></div></blockquote><div= class=3D""><br class=3D""></div><div class=3D"">I guess that is = regression by transition of route(8) to = NETLINK.</div></div></div></blockquote><blockquote type=3D"cite" = class=3D""><div class=3D""><div style=3D"caret-color: rgb(0, 0, 0); = font-family: Helvetica; font-size: 13px; font-style: normal; = font-variant-caps: normal; font-weight: 400; letter-spacing: normal; = text-align: start; text-indent: 0px; text-transform: none; white-space: = normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; = text-decoration: none;" class=3D""><div class=3D""><br = class=3D""></div><div class=3D"">Can you please build sbin/route from = source without NETLINK and give it another try ?</div><div class=3D""><br = class=3D""></div><div class=3D"">```</div><div class=3D""># cd = /usr/src/sbin/route</div><div class=3D""># = setenv MK_NETLINK_SUPPORT no</div><div class=3D""># make</div><div = class=3D"">```</div></div></div></blockquote><div><br = class=3D""></div><div>Hi Benoit,</div><div><br class=3D""></div><div>I = managed to repeat this bug.</div><div><br class=3D""></div><div><div>As = a workaround, add an IPv4 address to the outgoing interface (vlan200 in = your case),</div><div>```</div><div># ifconfig vlan200 inet = x.x.x.x/y</div><div>```</div><div><br class=3D""></div><div>then retry = adding the route</div><div>```</div><div># route add -net 10.200.1.1/32 = -inet6 fe80::9439:36ff:fef0:7cbd%vlan200</div><div>```</div><div = class=3D""><br class=3D""></div></div><blockquote type=3D"cite" = class=3D""><div class=3D""><div style=3D"caret-color: rgb(0, 0, 0); = font-family: Helvetica; font-size: 13px; font-style: normal; = font-variant-caps: normal; font-weight: 400; letter-spacing: normal; = text-align: start; text-indent: 0px; text-transform: none; white-space: = normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; = text-decoration: none;" class=3D""><br class=3D""><blockquote = type=3D"cite" class=3D""><div class=3D""><div class=3D"" = style=3D"font-family: Arial, sans-serif; font-size: 14px;">```</div><div = class=3D"" style=3D"font-family: Arial, sans-serif; font-size: = 14px;"><br class=3D""></div><div class=3D"" style=3D"font-family: Arial, = sans-serif; font-size: 14px;">ping6 to `<span class=3D"" = style=3D"text-decoration: none; background-color: rgb(255, 255, 255); = display: inline !important;">fe80::9439:36ff:fef0:7cbd%vlan200` works. = What I am doing wrong? Configuration of the interface is the = following:</span></div><div class=3D"" style=3D"font-family: Arial, = sans-serif; font-size: 14px;"><span class=3D"" style=3D"text-decoration: = none; background-color: rgb(255, 255, 255); display: inline = !important;"><br class=3D""></span></div><div class=3D"" = style=3D"font-family: Arial, sans-serif; font-size: 14px;">```</div><div = class=3D"" style=3D"font-family: Arial, sans-serif; font-size: = 14px;"><span class=3D"">vlan200: = flags=3D1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP> = metric 0 mtu 1500</span><div class=3D""><span class=3D""> = = options=3D4600703<RXCSUM,TXCSUM,TSO4,TSO6,LRO,RXCSUM_IPV6,TXCSUM_IPV6,M= EXTPG></span></div><div class=3D""><span class=3D""> = ether fe:d9:dd:2d:35:c5</span></div><div class=3D""><span = class=3D""> inet6 = fe80::fcd9:ddff:fe2d:35c5%vlan200 prefixlen 64 scopeid = 0x5</span></div><div class=3D""><span class=3D""> = groups: vlan</span></div><div class=3D""><span class=3D""> = vlan: 200 vlanproto: 802.1q vlanpcp: 0 parent = interface: iavf0</span></div><div class=3D""><span class=3D""> = media: Ethernet autoselect (10Gbase-SR = <full-duplex>)</span></div><div class=3D""><span class=3D""> = status: active</span></div><span class=3D""> = nd6 = options=3D23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL</span><br = class=3D""></div><div class=3D"" style=3D"font-family: Arial, = sans-serif; font-size: 14px;">```</div><div class=3D"" = style=3D"font-family: Arial, sans-serif; font-size: 14px;"><span = class=3D""><br class=3D""></span></div><div class=3D"" = style=3D"font-family: Arial, sans-serif; font-size: 14px;"><span = class=3D""><br class=3D""></span></div><div class=3D"" = style=3D"font-family: Arial, sans-serif; font-size: 14px;"><br = class=3D""></div><div class=3D"protonmail_signature_block" = style=3D"font-family: Arial, sans-serif; font-size: 14px;"><div = class=3D"protonmail_signature_block-user"><div class=3D"" = style=3D"font-style: normal; font-weight: normal; letter-spacing: = normal; text-indent: 0px; text-transform: none; white-space: normal; = word-spacing: 0px; text-decoration: none; font-family: Helvetica; = font-size: = 12px;">Beno=C3=AEt </div></div></div></div></blockquote></div><br = class=3D"" style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; = font-size: 13px; font-style: normal; font-variant-caps: normal; = font-weight: 400; letter-spacing: normal; text-align: start; = text-indent: 0px; text-transform: none; white-space: normal; = word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: = none;"><div class=3D"" style=3D"caret-color: rgb(0, 0, 0); font-family: = Helvetica; font-size: 13px; font-style: normal; font-variant-caps: = normal; font-weight: 400; letter-spacing: normal; text-align: start; = text-indent: 0px; text-transform: none; white-space: normal; = word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: = none;"><div class=3D"">Best regards,</div><div = class=3D"">Zhenlei</div></div></div></blockquote></div><br class=3D""><div= class=3D""> <div><br class=3D""></div> </div> <br class=3D""></body></html>= --Apple-Mail=_E106DB28-5FB3-4813-8A52-A68C7ED42649--
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