Hi, I switched on my Pi this morning and then went into my garage only to find that my garage PC can't get into the internet.
After some pinging and running ipconfig I found that the IP address for DHPC server for my garage PC was the IP address of the RPI and not my BT Home Hub. I didn't know the RPI was a DHPC server how do I stop this?
RPI is connected via Ethernet to my Home Hub, the garage is connected via a Power line plug.
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JonnyAlpha
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RPI Acting as unwanted DHPC Server
Raspberry Pi Certified Educator. Main Hardware - Raspberry Pi 1 model B revision 2, Raspberry Pi 2 model B, Pi Camera
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Richard-TX
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Re: RPI Acting as unwanted DHPC Server
run this as root
apt-get remove dhcpd
apt-get remove dhcpd
Richard
Doing Unix since 1985.
The 9-25-2013 image of Wheezy can be found at:
http://downloads.raspberrypi.org/raspbian/images/raspbian-2013-09-27/2013-09-25-wheezy-raspbian.zip
Doing Unix since 1985.
The 9-25-2013 image of Wheezy can be found at:
http://downloads.raspberrypi.org/raspbian/images/raspbian-2013-09-27/2013-09-25-wheezy-raspbian.zip
Re: RPI Acting as unwanted DHPC Server
1. Are you confusing DHCP server and Domain Name Server (DNS)?
2. Would help if you hadn't kept the RPi's OS a secret but AFAIK none of the common ones have a DHCP or DNS server running by default. In which case either you have manually enabled, installed something which has enable dit it or something is awry with the RPi.
Humour us by powering down the RPi and rebooting the garage PC. Can it access the internet? Power up the RPi, wait a bit then reboot the garage PC again. Can it no longer access the internet?
2. Would help if you hadn't kept the RPi's OS a secret but AFAIK none of the common ones have a DHCP or DNS server running by default. In which case either you have manually enabled, installed something which has enable dit it or something is awry with the RPi.
Humour us by powering down the RPi and rebooting the garage PC. Can it access the internet? Power up the RPi, wait a bit then reboot the garage PC again. Can it no longer access the internet?
Re: RPI Acting as unwanted DHPC Server
The BT HH should be the (only) DHCP server on your network.
It sounds like the leases on both you Pi and PC had expired and the PI got the address the PC had before.
3 of my 4 Pis regularly change addresses as they assigned by DHCP, the other has a fixed address (outside the DHCP range).
Raspbian doesn't have the dhpc server installed by default.
It sounds like the leases on both you Pi and PC had expired and the PI got the address the PC had before.
3 of my 4 Pis regularly change addresses as they assigned by DHCP, the other has a fixed address (outside the DHCP range).
Raspbian doesn't have the dhpc server installed by default.
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DougieLawson
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Re: RPI Acting as unwanted DHPC Server
The server may be isc-dhcp-server so apt-get purge isc-dhcp-server.Richard-TX wrote:apt-get remove dhcpd
Also he may have tried to install dhcpcd as a replacement for isc-dhcp-client and missed by one char. That's a move I do because the stock Raspbian version of isc-dhcp-client has a memory leak.
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Criticising any questions is banned on this forum.
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JonnyAlpha
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Re: RPI Acting as unwanted DHPC Server
The Pi was running a Jasper image which I think is Raspian.
I havent installed anything and I'll check again tommorow.
But thanks for the replies.
I havent installed anything and I'll check again tommorow.
But thanks for the replies.
Raspberry Pi Certified Educator. Main Hardware - Raspberry Pi 1 model B revision 2, Raspberry Pi 2 model B, Pi Camera
Re: RPI Acting as unwanted DHPC Server
Hi,
It is worth familiarising yourself with DHCP, DNS and BIND at least the high level ideas. I found package 'dnsmasq' to be ideal as its an easy to configure setup that will allow you to
i) run dhcp server
ii) forward and provide nameserver to Pi's on the network.
In my setup, I had one Pi as the master running dhcp on eth0 the ethernet port and wlan0 with wireless lan connection. The documentation on 'dnsmasq' is very straightforward and if you google 'debian internet gateway' there is a tutorial where you can modify a very simple ipTables shell script that would allow your Pi to act as internet gateway for the others on the network. (I did this setting up a simple Hadoop cluster.)
It is worth familiarising yourself with DHCP, DNS and BIND at least the high level ideas. I found package 'dnsmasq' to be ideal as its an easy to configure setup that will allow you to
i) run dhcp server
ii) forward and provide nameserver to Pi's on the network.
In my setup, I had one Pi as the master running dhcp on eth0 the ethernet port and wlan0 with wireless lan connection. The documentation on 'dnsmasq' is very straightforward and if you google 'debian internet gateway' there is a tutorial where you can modify a very simple ipTables shell script that would allow your Pi to act as internet gateway for the others on the network. (I did this setting up a simple Hadoop cluster.)