Re: Error output from ndp -an
On Fri, Dec 28, 2018 at 6:14 AM Christian Weisgerber wrote: > On 2018-12-28, Denis Fondras wrote: > > >> I'm using OpenBSD 6.4 on a pcengines apu2 box as a router/firewall for a > >> CenturyLink DSL (pppoe) connection. > >> > >> [aaron@apu2] ~$ ndp -an > >> Neighbor Linklayer Address Netif Expire > S > >> Flags > >> ndp: ioctl(SIOCGNBRINFO_IN6): Invalid argument > >> ndp: failed to get neighbor information > > > > Are you sure ndp and the kernel are in sync ? > > It's a problem with pppoe interfaces. > > # ndp -an > ... > ndp: ioctl(SIOCGNBRINFO_IN6): Invalid argument > ndp: failed to get neighbor information > fe80::100:100:3e9b:f6ab%pppoe0 (incomplete) pppoe0 > ... > > OpenBSD 6.4-current (GENERIC.MP) #0: Tue Dec 11 17:26:50 CET 2018 > > -- > Christian "naddy" Weisgerber na...@mips.inka.de > > I'm using a generic install of 6.4. I've run syspatch but have not compiled anything on my own. OpenBSD 6.4 (GENERIC.MP) #3: Thu Dec 20 19:19:32 CET 2018 r...@syspatch-64-amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/ GENERIC.MP
Re: Error output from ndp -an
On 2018-12-28, Denis Fondras wrote: >> I'm using OpenBSD 6.4 on a pcengines apu2 box as a router/firewall for a >> CenturyLink DSL (pppoe) connection. >> >> [aaron@apu2] ~$ ndp -an >> Neighbor Linklayer Address Netif ExpireS >> Flags >> ndp: ioctl(SIOCGNBRINFO_IN6): Invalid argument >> ndp: failed to get neighbor information > > Are you sure ndp and the kernel are in sync ? It's a problem with pppoe interfaces. # ndp -an ... ndp: ioctl(SIOCGNBRINFO_IN6): Invalid argument ndp: failed to get neighbor information fe80::100:100:3e9b:f6ab%pppoe0 (incomplete) pppoe0 ... OpenBSD 6.4-current (GENERIC.MP) #0: Tue Dec 11 17:26:50 CET 2018 -- Christian "naddy" Weisgerber na...@mips.inka.de
Re: Error output from ndp -an
On Thu, Dec 27, 2018 at 01:39:33PM -0600, Aaron Riekenberg wrote: > I'm using OpenBSD 6.4 on a pcengines apu2 box as a router/firewall for a > CenturyLink DSL (pppoe) connection. > > Today I set up rd6 for ipv6 for the first time, similar to what is > described here: > https://gist.github.com/afresh1/791343380b4410687d51fdd94f20bd42 > > Things are working well but one minor issue I notice is when I run "ndp > -an" to see ipv6 neighbor info I get an error printed to stderr from ndp: > > [aaron@apu2] ~$ ndp -an > Neighbor Linklayer Address Netif ExpireS > Flags > ndp: ioctl(SIOCGNBRINFO_IN6): Invalid argument > ndp: failed to get neighbor information > Are you sure ndp and the kernel are in sync ? > This is followed by normal ndp output lines so this seems like a very minor > bug, but is slightly noisy. > > Below I am pasting: > 1. ktrace output for the "ndp -an" command. Looks like > ioctl(SIOCGNBRINFO_IN6) is being called on a SOCK_DGRAM socket. ioctl > returns -1 with errno 22 Invalid Argument. > 2. ifconfig output > > > 1. ktrace output from "ndp -an" command: > 9697 ndp CALL socket(AF_INET6,0x2,0) > 9697 ndp RET socket 3 > 9697 ndp CALL > sysctl(4.17.0.0.6.0,0,0x7f7ee808,0,0) > 9697 ndp RET sysctl 0 > 9697 ndp CALL > sysctl(4.17.0.0.6.0,0x133e91ee1a00,0x7f7ee808,0,0) > 9697 ndp RET sysctl 0 > 9697 ndp CALL kbind(0x7f7ee7c8,24,0xd76384b171042686) > 9697 ndp RET kbind 0 > 9697 ndp CALL ioctl(3,SIOCGNBRINFO_IN6,0x133c63e05100) > 9697 ndp RET ioctl -1 errno 22 Invalid argument > 9697 ndp CALL kbind(0x7f7ee7c8,24,0xd76384b171042686) > 9697 ndp RET kbind 0 > 9697 ndp CALL write(2,0x7f7ee050,0x5) > 9697 ndp GIO fd 2 wrote 5 bytes >"ndp: " > 9697 ndp RET write 5 > 9697 ndp CALL write(2,0x7f7ee140,0x17) > 9697 ndp GIO fd 2 wrote 23 bytes >"ioctl(SIOCGNBRINFO_IN6)" > > 2. ifconfig: > [aaron@apu2] ~$ ifconfig > lo0: flags=8049 mtu 32768 > index 5 priority 0 llprio 3 > groups: lo > inet6 ::1 prefixlen 128 > inet6 fe80::1%lo0 prefixlen 64 scopeid 0x5 > inet 127.0.0.1 netmask 0xff00 > em0: flags=8843 mtu 1500 > lladdr 00:0d:b9:4b:17:10 > index 1 priority 0 llprio 3 > media: Ethernet autoselect (1000baseT full-duplex) > status: active > em1: flags=8843 mtu 1500 > lladdr 00:0d:b9:4b:17:11 > index 2 priority 0 llprio 3 > media: Ethernet autoselect (1000baseT full-duplex,rxpause,txpause) > status: active > inet 192.168.1.1 netmask 0xff00 broadcast 192.168.1.255 > inet6 fe80::813b:5c49:d64b:f9fc%em1 prefixlen 64 scopeid 0x2 > inet6 2602:d8:a032:2200::1 prefixlen 64 > em2: flags=8802 mtu 1500 > lladdr 00:0d:b9:4b:17:12 > index 3 priority 0 llprio 3 > media: Ethernet autoselect (none) > status: no carrier > enc0: flags=0<> > index 4 priority 0 llprio 3 > groups: enc > status: active > pppoe0: flags=8851 mtu 1492 > index 6 priority 0 llprio 3 > dev: vlan201 state: session > sid: 0x25d PADI retries: 4 PADR retries: 0 time: 04:57:57 > sppp: phase network authproto chap > groups: pppoe egress > status: active > inet 216.160.50.34 --> 207.109.2.20 netmask 0x > vlan201: flags=8843 mtu 1500 > lladdr 00:0d:b9:4b:17:10 > index 7 priority 0 llprio 3 > encap: vnetid 201 parent em0 > groups: vlan > media: Ethernet autoselect (1000baseT full-duplex) > status: active > pflog0: flags=141 mtu 33136 > index 8 priority 0 llprio 3 > groups: pflog > gif0: flags=8051 mtu 1472 > index 9 priority 0 llprio 3 > groups: gif egress > tunnel: inet 216.160.50.34 -> 205.171.2.64 ttl 64 nodf > inet6 fe80::e39e:d302:d26:902f%gif0 -> prefixlen 64 scopeid 0x9 > inet6 2602:d8:a032:2200::1 -> prefixlen 24
Error output from ndp -an
I'm using OpenBSD 6.4 on a pcengines apu2 box as a router/firewall for a CenturyLink DSL (pppoe) connection. Today I set up rd6 for ipv6 for the first time, similar to what is described here: https://gist.github.com/afresh1/791343380b4410687d51fdd94f20bd42 Things are working well but one minor issue I notice is when I run "ndp -an" to see ipv6 neighbor info I get an error printed to stderr from ndp: [aaron@apu2] ~$ ndp -an Neighbor Linklayer Address Netif ExpireS Flags ndp: ioctl(SIOCGNBRINFO_IN6): Invalid argument ndp: failed to get neighbor information This is followed by normal ndp output lines so this seems like a very minor bug, but is slightly noisy. Below I am pasting: 1. ktrace output for the "ndp -an" command. Looks like ioctl(SIOCGNBRINFO_IN6) is being called on a SOCK_DGRAM socket. ioctl returns -1 with errno 22 Invalid Argument. 2. ifconfig output 1. ktrace output from "ndp -an" command: 9697 ndp CALL socket(AF_INET6,0x2,0) 9697 ndp RET socket 3 9697 ndp CALL sysctl(4.17.0.0.6.0,0,0x7f7ee808,0,0) 9697 ndp RET sysctl 0 9697 ndp CALL sysctl(4.17.0.0.6.0,0x133e91ee1a00,0x7f7ee808,0,0) 9697 ndp RET sysctl 0 9697 ndp CALL kbind(0x7f7ee7c8,24,0xd76384b171042686) 9697 ndp RET kbind 0 9697 ndp CALL ioctl(3,SIOCGNBRINFO_IN6,0x133c63e05100) 9697 ndp RET ioctl -1 errno 22 Invalid argument 9697 ndp CALL kbind(0x7f7ee7c8,24,0xd76384b171042686) 9697 ndp RET kbind 0 9697 ndp CALL write(2,0x7f7ee050,0x5) 9697 ndp GIO fd 2 wrote 5 bytes "ndp: " 9697 ndp RET write 5 9697 ndp CALL write(2,0x7f7ee140,0x17) 9697 ndp GIO fd 2 wrote 23 bytes "ioctl(SIOCGNBRINFO_IN6)" 2. ifconfig: [aaron@apu2] ~$ ifconfig lo0: flags=8049 mtu 32768 index 5 priority 0 llprio 3 groups: lo inet6 ::1 prefixlen 128 inet6 fe80::1%lo0 prefixlen 64 scopeid 0x5 inet 127.0.0.1 netmask 0xff00 em0: flags=8843 mtu 1500 lladdr 00:0d:b9:4b:17:10 index 1 priority 0 llprio 3 media: Ethernet autoselect (1000baseT full-duplex) status: active em1: flags=8843 mtu 1500 lladdr 00:0d:b9:4b:17:11 index 2 priority 0 llprio 3 media: Ethernet autoselect (1000baseT full-duplex,rxpause,txpause) status: active inet 192.168.1.1 netmask 0xff00 broadcast 192.168.1.255 inet6 fe80::813b:5c49:d64b:f9fc%em1 prefixlen 64 scopeid 0x2 inet6 2602:d8:a032:2200::1 prefixlen 64 em2: flags=8802 mtu 1500 lladdr 00:0d:b9:4b:17:12 index 3 priority 0 llprio 3 media: Ethernet autoselect (none) status: no carrier enc0: flags=0<> index 4 priority 0 llprio 3 groups: enc status: active pppoe0: flags=8851 mtu 1492 index 6 priority 0 llprio 3 dev: vlan201 state: session sid: 0x25d PADI retries: 4 PADR retries: 0 time: 04:57:57 sppp: phase network authproto chap groups: pppoe egress status: active inet 216.160.50.34 --> 207.109.2.20 netmask 0x vlan201: flags=8843 mtu 1500 lladdr 00:0d:b9:4b:17:10 index 7 priority 0 llprio 3 encap: vnetid 201 parent em0 groups: vlan media: Ethernet autoselect (1000baseT full-duplex) status: active pflog0: flags=141 mtu 33136 index 8 priority 0 llprio 3 groups: pflog gif0: flags=8051 mtu 1472 index 9 priority 0 llprio 3 groups: gif egress tunnel: inet 216.160.50.34 -> 205.171.2.64 ttl 64 nodf inet6 fe80::e39e:d302:d26:902f%gif0 -> prefixlen 64 scopeid 0x9 inet6 2602:d8:a032:2200::1 -> prefixlen 24
