Date: Mon, 06 Nov 2000 12:02:03 -0800 From: Julian Elischer <julian@elischer.org> To: Greg Lehey <grog@lemis.com> Cc: mobile@FreeBSD.org Subject: Re: 802.11b access in Singapore Changi airport (was: cool) Message-ID: <3A070E3B.4CAEFACD@elischer.org> References: <Pine.BSF.4.10.10006140050210.58746-100000@InterJet.elischer.org> <20000615084805.E809@sydney.worldwide.lemis.com> <20001106095852.A3648@sydney.worldwide.lemis.com>
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Greg Lehey wrote:
>
> On Thursday, 15 June 2000 at 8:48:05 -0700, Greg Lehey wrote:
> > On Wednesday, 14 June 2000 at 1:00:27 -0700, Julian Elischer wrote:
> >>
> >> So, if you are in the Singapore Changi international airport,
> >> the internet center in the transit area will loan you for FREE,
> >> a wavelan PC-CARD.
> >>
> >> So here I am waiting for my next flight and I'm on the net!
> >> (well they hold your passport in exchange but that's ok)
> >>
> >> I couldn;t get teh DHCP client to work,
> >> It kept saying:
> >>
> >>
> >> jules# /sbin/dhclient
> >> ifconfig: ioctl (SIOCAIFADDR): File exists
> >> Listening on BPF/wi0/00:60:1d:1e:42:6c
> >> Sending on BPF/wi0/00:60:1d:1e:42:6c
> >> Can't find free bpf: No such file or directory
> >> exiting.
> >>
> >> And the log files showed..
> >>
> >> Jun 14 00:54:37 jules /kernel: rtinit: wrong ifa (0xc0f85980) was (0xc0ee3000)
> >> Jun 14 00:54:37 jules dhclient: Can't find free bpf: No such file or directory
> >> Jun 14 00:54:37 jules dhclient: exiting.
> >>
> >> So I just did:
> >> # wicontrol -i wi0 -p 1
> >> # tcpdump
> >> eventually a packet showed up, from the router at 192.100.100.1
> >> so I just grabbed 192.100.100.2 (SHHHHHHHH!)
> >>
> >> now if I can get dhcp to work this would be great!
> >
> > Great stuff. Last but one time I was there (must have been a year
> > ago) I tried one of their Internet Cafe things, but I couldn't find an
> > active jack.
> >
> > So how do they expect people to get these things to work without DHCP?
>
> OK, I'm now in Changi myself, and I appear to be connected the way it
> was intended. You need to set the SSID to "ANY", no encryption,
> managed mode. The people I spoke to didn't know any of this, but we
> barely got by. Once you have that, you get:
>
> === grog@sydney (/dev/ttyp6) ~ 1 -> wicontrol -i wi0
> NIC serial number: [ 00UT28336821 ]
> Station name: [ FreeBSD WaveLAN/IEEE node ]
> SSID for IBSS creation: [ ANY ]
> Current netname (SSID): [ SIA Lounge Wireless ]
> Desired netname (SSID): [ ]
> Current BSSID: [ 00:60:1d:f2:2a:17 ]
> Channel list: [ 2047 ]
> IBSS channel: [ 3 ]
> Current channel: [ 10 ]
> Comms quality/signal/noise: [ 6 60 54 ]
> Promiscuous mode: [ Off ]
> Port type (1=BSS, 3=ad-hoc): [ 1 ]
> MAC address: [ 00:02:2d:04:09:3a ]
> TX rate (selection): [ 3 ]
> TX rate (actual speed): [ 2 ]
> RTS/CTS handshake threshold: [ 2347 ]
> Create IBSS: [ Off ]
> Access point density: [ 1 ]
> Power Mgmt (1=on, 0=off): [ 0 ]
> Max sleep time: [ 100 ]
> WEP encryption: [ Off ]
> TX encryption key: [ 1 ]
> Encryption keys: [ ][ ][ ][ ]
> === grog@sydney (/dev/ttyp6) ~ 2 -> ifconfig wi0
> wi0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> inet6 fe80::202:2dff:fe04:93a%wi0 prefixlen 64 scopeid 0x9
> inet 196.168.1.68 netmask 0xffffff00 broadcast 255.255.255.255
> ether 00:02:2d:04:09:3a
>
> They appear to have blocked tracroute:
>
> === grog@sydney (/dev/ttyp6) ~ 3 -> traceroute freebie.lemis.com
> traceroute to freebie.lemis.com (192.109.197.137), 30 hops max, 40 byte packets
> 1 196.168.1.1 (196.168.1.1) 2.781 ms 6.651 ms 8.375 ms
> 2 *^C
>
> but name services and ping work, and so does ssh.
last time I was there (2 weeeks ago) terminal 2 internet center was
moving
so I had to use terminal 1..
But DHCP seemed to work for me this time, (but not the first time...)...
the script I used was:
#!/bin/sh
kldload if_wi
sleep 15
wicontrol -i wi0 -p 1
sleep 1
/sbin/dhclient
# if dhcp fails, use the following by hand....
#ifconfig wi0 up 192.100.100.2
#sleep 1
#route add default 192.100.100.1
I'll play more with it on jan 27 when I go through in the other
direction again.... :-)
>
> Check the headers on this message; I'd be interested to see what they
> say.
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(envelope-from grog)
Date: Mon, 6 Nov 2000 09:58:52 +0800
From: Greg Lehey <grog@lemis.com>
To: Julian Elischer <julian@elischer.org>
Cc: mobile@FreeBSD.org
Subject: 802.11b access in Singapore Changi airport (was: cool)
Message-ID: <20001106095852.A3648@sydney.worldwide.lemis.com>
References:
<Pine.BSF.4.10.10006140050210.58746-100000@InterJet.elischer.org>
<20000615084805.E809@sydney.worldwide.lemis.com>
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Organization: LEMIS, PO Box 460, Echunga SA 5153, Australia
Phone: +61-8-8388-8286
Fax: +61-8-8388-8725
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>
> Greg
> --
> Finger grog@lemis.com for PGP public key
> See complete headers for address and phone numbers
--
__--_|\ Julian Elischer
/ \ julian@elischer.org
( OZ ) World tour 2000
---> X_.---._/ presently in: Budapest
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