you didn't remove an ip address from ral0 after bringing it down.
On Sun, Oct 2, 2011 at 5:13 PM, David Coppa <[email protected]> wrote:
> Am I stupid or there's a bug with routing?
>
> This is what I've found when I was trying to switch from the internal
> wireless card in my laptop to an external usb wireless adapter...
>
> The system is:
>
> # dmesg | head -n 2
> OpenBSD 5.0-current (GENERIC.MP) #2: Fri Sep 30 13:33:44 CEST 2011
> [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
>
> And ral0 is the mini-pci wireless card in my laptop:
>
> ral0 at pci2 dev 0 function 0 "Ralink RT2890" rev 0x00: apic 2 int 17,
address 00:0d:f0:7d:ba:64
> ral0: MAC/BBP RT2860 (rev 0x0102), RF RT2820 (MIMO 2T3R)
>
> # ifconfig ral0 nwid homewlan wpa wpakey <not displayed> up
>
> # dhclient ral0
> DHCPREQUEST on ral0 to 255.255.255.255 port 67
> DHCPACK from 192.168.2.1 (00:22:6b:e2:e1:61)
> bound to 192.168.2.102 -- renewal in 43200 seconds.
>
> # ping -c 5 www.undeadly.org
> PING www.undeadly.org (193.109.122.60): 56 data bytes
> 64 bytes from 193.109.122.60: icmp_seq=0 ttl=244 time=89.307 ms
> 64 bytes from 193.109.122.60: icmp_seq=1 ttl=244 time=88.787 ms
> 64 bytes from 193.109.122.60: icmp_seq=2 ttl=244 time=88.743 ms
> 64 bytes from 193.109.122.60: icmp_seq=3 ttl=244 time=89.016 ms
> 64 bytes from 193.109.122.60: icmp_seq=4 ttl=244 time=88.311 ms
> --- www.undeadly.org ping statistics ---
> 5 packets transmitted, 5 packets received, 0.0% packet loss
> round-trip min/avg/max/std-dev = 88.311/88.832/89.307/0.500 ms
>
> # ifconfig
> lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 33152
> priority: 0
> groups: lo
> inet6 ::1 prefixlen 128
> inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3
> inet 127.0.0.1 netmask 0xff000000
> bge0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
> lladdr 00:1c:23:36:a8:89
> priority: 0
> media: Ethernet autoselect (none)
> status: no carrier
> enc0: flags=0<>
> priority: 0
> groups: enc
> status: active
> ral0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> lladdr 00:0d:f0:7d:ba:64
> priority: 4
> groups: wlan egress
> media: IEEE802.11 autoselect (OFDM54 mode 11g)
> status: active
> ieee80211: nwid homewlan chan 11 bssid 00:22:6b:e2:e1:62 78dB wpakey
<not displayed> wpaprotos wpa2 wpaakms psk wpaciphers ccmp wpagroupcipher
ccmp
> inet6 fe80::20d:f0ff:fe7d:ba64%ral0 prefixlen 64 scopeid 0x5
> inet 192.168.2.102 netmask 0xffffff00 broadcast 192.168.2.255
> pflog0: flags=141<UP,RUNNING,PROMISC> mtu 33152
> priority: 0
> groups: pflog
>
> # netstat -nrf inet
> Routing tables
>
> Internet:
> Destination Gateway Flags Refs Use Mtu Prio
Iface
> default 192.168.2.1 UGS 0 12 - 12
ral0
> 127/8 127.0.0.1 UGRS 0 0 33152 8 lo0
> 127.0.0.1 127.0.0.1 UH 2 34 33152 4 lo0
> 192.168.2/24 link#5 UC 1 0 - 4
ral0
> 192.168.2.1 00:22:6b:e2:e1:61 UHLc 1 10 - 4
ral0
> 192.168.2.102 127.0.0.1 UGHS 0 0 33152 8 lo0
> 224/4 link#5 UCS 0 0 - 12
ral0
>
> Ok?
>
> Now I bring the interface down:
>
> # ifconfig ral0 down
>
> # ifconfig ral0 -bssid -chan media autoselect nwid "" -nwkey -wpa -wpakey
>
> # route -n flush
> default 192.168.2.1 done
> 127/0 127.0.0.1 done
> 192.168.2.1 00:22:6b:e2:e1:61 done
> 192.168.2.102 127.0.0.1 done
> ::/128 ::1 done
> ::/128 ::1 done
> ::127.0.0.0/128 ::1 done
> ::224.0.0.0/128 ::1 done
> ::255.0.0.0/128 ::1 done
> ::ffff:0.0.0.0/128 ::1 done
> 2002::/128 ::1 done
> 2002:7f00::/128 ::1 done
> 2002:e000::/128 ::1 done
> 2002:ff00::/128 ::1 done
> fe80::/128 ::1 done
> fe80::1%lo0 link#3 done
> fe80::20d:f0ff:fe7d: 00:0d:f0:7d:ba:64 done
> fec0::/128 ::1 done
> ff01::/128 ::1 done
> ff02::/128 ::1 done
>
> # route -n delete -net 192.168.2/24
> delete net 192.168.2/24
>
> # netstat -nrf inet
> Routing tables
>
> Internet:
> Destination Gateway Flags Refs Use Mtu Prio
Iface
> 127.0.0.1 127.0.0.1 UH 0 34 33152 4 lo0
>
> ...And now I plug a new usb wireless adapter in:
>
> rum0 at uhub1 port 1 "Cisco-Linksys Compact Wireless-G USB Adapter" rev
2.00/0.01 addr 2
> rum0: MAC/BBP RT2573 (rev 0x2573a), RF RT2528, address 00:18:39:1a:19:a9
>
> Same as before:
>
> # ifconfig rum0 nwid homewlan wpa wpakey <not displayed> up
>
> # dhclient rum0
> DHCPREQUEST on rum0 to 255.255.255.255 port 67
> DHCPACK from 192.168.2.1 (00:22:6b:e2:e1:61)
> bound to 192.168.2.103 -- renewal in 43200 seconds.
>
> # ping -c 5 www.undeadly.org
> ping: unknown host: www.undeadly.org
>
> Uhm... WTF?
>
> # netstat -nrf inet
> Routing tables
>
> Internet:
> Destination Gateway Flags Refs Use Mtu Prio
Iface
> default 192.168.2.1 GS 1 11 - 12
ral0
> 127.0.0.1 127.0.0.1 UH 1 34 33152 4 lo0
> 192.168.2.103 127.0.0.1 UGHS 0 0 33152 8 lo0
>
> Isn't this strange?
>
> cheers,
> David
