[Techtalk] LAN IP addresses changed after router reset
showercurtain2000 at yahoo.com
Wed May 14 11:46:10 UTC 2008
I'm using a Billion 7401VGP router/modem.
It says that the active pcs in my LAN are:
192.168.1.3 (windows box)
192.168.1.5 (debian box)
Pinging 192.168.1.1 and 2 got a "request timed out" result. Pinging the router
(254) works fine, so if 192.168.1.1 were also the router IP it should reply.
An Nmap scan on 192.168.1.1 and 2 said "host appears to be down".
What puzzles me is why my computers suddenly changed IP addresses. I've had
this router for a while and the IP addresses have remained the same whenever
I've restarted the router.
The reason I prefer to have my boxes numbered 1,2,3 is that it's easier to
remember. I've also recently set up a samba share on the Debian box, and
changing IP addresses may affect it (I'm going to check the smb.conf later. I
don't know exactly how samba was configured because it was done automatically
when I installed Debian).
--- Sarah Newman <newmans at sonic.net> wrote:
> What router are you using?
> A lot of routers default to 192.168.1.1 as their IP.
> If it bothers you to have the IP addresses change, it is often possible
> to assign an IP address to a given MAC.
> Usually the router can tell you itself what devices are connected.
> Otherwise nmap can be used to scan for devices on the network.
> We have a WRT54G and flashed it with new firmware to support some of the
> above features. You might have that option with your router too if it
> doesn't already have them (but be prepared to buy another router if that
> doesn't work.)
> Berenice wrote:
> > Hi All
> > This morning I reset my router/modem because I forgot the password.
> > Now I've found that the IP addresses in my home network have been changed,
> > I don't know why. Perhaps someone here might know.
> > The IP range I use is: 192.168.1.1 - 192.168.1.254
> > 254 is the router.
> > Previously the assigned addresses for computers in my network were:
> > iBook = 1
> > Windows XP box = 2
> > Debian box = 3
> > Now they are:
> > Windows XP box = 3
> > iBook = 4
> > Debian box = 5
> > How can I find out which devices, if any, are now using 1 and 2?
> > Also my iBook is now connected to the LAN via ethernet instead of the usual
> > wireless (this was to troubleshoot connecting to a samba share on the
> > box, which is another problem I might post about later). Might that have
> > something to do with the renumbering?
> > Thanks
> > Berenice
Get the name you always wanted with the new y7mail email address.
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