[plug] Determining ip address

[Cameron Patrick]

On Wed, Dec 17, 2003 at 06:00:03PM +0800, Craig Ringer wrote:

| If you can snmpwalk with '-c private' then it's probably time to look
| at the web interface or serial console and see if you can change that
| community name.

Well, it looks as though I can.  What is the significance of this,
besides it being Bad?  :-/

| Cameron Patrick wrote:
| > Oooh, I just tried that on the cruddy D-Link ADSL modem at home and it
| > spat pages on end of stuff at me.  Having never used SNMP before, it
| > surprised me that it was (a) supported and (b) less of a black art
| > involving dribbly candles than I had previously expected...  You learn
| > something new every day, as they say.  I have no idea what most of the
| > fields it dumped at me meant,
| 
| This command may give you a slightly more controlled level of output, 
| restricted to network interfaces and closely related info:
| 
| snmpwalk -v 1 -c public $HOSTNAME .iso.org.dod.internet.mgmt.mib-2.ip

Good lord.  This is where those dribbly candles make their return, I see :-)
The output still looks like so much gibberish, but at least there's less
of it this time.

May I assume that MIB-2 is not a reference to the movie, then? :-P

| > but the disturbing bit is that it seems as
| > though the password it uses to log in to the ISP is stored in cleartext
| > and can be retrieved via SNMP with no autentication whatsoever.
| 
| Woohoo. Time to see if you can at least change the community strings.

Yeah.  And/or figure out how to set up pppoe on my linux box, it'd probably
reduce pain and suffering in the long run.

| > (Although thinking about it, that's probably the case via the web
| > interface too...)
| 
| I know that my Alcatel DSL modem (it's actually the Pro router, but i've 
| crippled it's brains because I don't want it doing PPPoE) has a web 
| interface and console password, as does my nice new D-Link 802.11b AP. 
| I'd be surprised if your modem didn't.

*sigh*  This one doesn't appear to have any way to set a password from
the web interface, or to change the community string. (I take that's the
SMTP equivalent of a password, and what goes with the -c option?)  Maybe
I'll give the serial console a go, but I really can't be bothered
shifting my NULL modem cable into the other room at the moment.

Cameron.