On 5 April 2014 16:00, Nick Holland <n...@holland-consulting.net> wrote: > When setting up wireless for someone, tripped across this one: > > # ifconfig ral0 nwkey 0x4646464646 <- note: 10 hex digits > # ifconfig ral0 > ral0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > lladdr 00:18:39:15:60:82 > priority: 4 > groups: wlan > media: IEEE802.11 autoselect (OFDM36) > status: no network > ieee80211: nwid Benny nwkey FFFFF 100dBm <- Fail > inet6 fe80::218:39ff:fe15:6082%ral0 prefixlen 64 scopeid 0x5
This is not a fail! 0x46 is 'F', hence printable. All chars are printable, so they are printed as ascii string. > > # ifconfig ral0 nwkey 0x46464646 <- 8 hex digits > # ifconfig ral0 > ral0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > lladdr 00:18:39:15:60:82 > priority: 4 > groups: wlan > media: IEEE802.11 autoselect (OFDM36 mode 11g) > status: active > ieee80211: nwid Benny nwkey 0x4646464600 100dBm <- ok, > inet6 fe80::218:39ff:fe15:6082%ral0 prefixlen 64 scopeid 0x5 > 0x00 is *not* printable, so the key is printed as a hex string. > # ifconfig ral0 nwkey 0x4646464611 <- 10 hex digits, but different > # ifconfig ral0 > ral0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > lladdr 00:18:39:15:60:82 > priority: 4 > groups: wlan > media: IEEE802.11 autoselect (OFDM36) > status: no network > ieee80211: nwid Benny nwkey 0x4646464611 100dBm <- good! > inet6 fe80::218:39ff:fe15:6082%ral0 prefixlen 64 scopeid 0x5 > 0x11 is not printable so the key is printed in hex. > # ifconfig ral0 nwkey 0x4646464622 > # ifconfig ral0 > ral0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > lladdr 00:18:39:15:60:82 > priority: 4 > groups: wlan > media: IEEE802.11 autoselect (autoselect mode 11b) > status: no network > ieee80211: nwid Benny nwkey FFFF" 100dBm <- fail > inet6 fe80::218:39ff:fe15:6082%ral0 prefixlen 64 scopeid 0x5 > Not a fail! 'F' and '"' are both printable, so key in printed as an ascii string. Admittedly a tad confusing, but a few hours perusing ifconfig.c and in particular its print_string() and all is copacetic. Except you may suffer transient blindness of course. > ??? > And now for the next mind blower: > > # ifconfig ral0 nwkey 0x1146464622 > # ifconfig ral0 > ral0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > lladdr 00:18:39:15:60:82 > priority: 4 > groups: wlan > media: IEEE802.11 autoselect (OFDM36 mode 11g) > status: no network > ieee80211: nwid Benny nwkey 0x1146464622 100dBm <- works! ??? > inet6 fe80::218:39ff:fe15:6082%ral0 prefixlen 64 scopeid 0x5 > > I'm not able to figure out the pattern. 0x11 is not printable so the key is printed in hex. Pattern is pretty clear! :-) .... Ken
