Re: Redirect internet connection to wireless router (was: Sharing ppp [...])

2009-10-10 Thread Vinicius Massuchetto
On Fri, Oct 2, 2009 at 4:03 PM, green greenfreedo...@gmail.com wrote:
 Vinicius Massuchetto wrote at 2009-10-02 11:54 -0500:

[...]

 Here is one way:
 1. Set the IP address statically on the laptop for eth0 (192.168.0.1).

I did this. My eth1 is on 192.168.1.1.

 2. Set up a DHCP server (I use dnsmasq) on the laptop, listening on eth0.

And this:
$ cat /etc/dnsmasq.conf
domain-needed
bogus-priv
interface=eth1
dhcp-range=192.168.1.3,192.169.1.100,12h

 3. Configure the DHCP server to give the router a specific IP address, using
 the MAC address of the router (IP 192.168.0.2).

The router configuration allows me to fix its IP. Is it still necessary?
The router is on 192.168.1.2

 4. Disable the DHCP server on the router.

I did this too. On LAN and WLAN interface.

 5. Install the ipmasq package, and configure as necessary.

ipmasq is not available on sid. What package replaces it?

--
Vinicius Massuchetto
http://vinicius.soylocoporti.org.br


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Re: Redirect internet connection to wireless router (was: Sharing ppp [...])

2009-10-10 Thread green
Vinicius Massuchetto wrote at 2009-10-10 08:44 -0500:
 On Fri, Oct 2, 2009 at 4:03 PM, green greenfreedo...@gmail.com wrote:
  Here is one way:
  1. Set the IP address statically on the laptop for eth0 (192.168.0.1).
 
 I did this. My eth1 is on 192.168.1.1.

eth0 is on the WAN/internet side?

  2. Set up a DHCP server (I use dnsmasq) on the laptop, listening on eth0.
 
 And this:
 $ cat /etc/dnsmasq.conf
 domain-needed
 bogus-priv
 interface=eth1
 dhcp-range=192.168.1.3,192.169.1.100,12h

That looks okay; hopefully nothing is missing.

  3. Configure the DHCP server to give the router a specific IP address, using
  the MAC address of the router (IP 192.168.0.2).
 
 The router configuration allows me to fix its IP. Is it still necessary?
 The router is on 192.168.1.2

That should work.

  4. Disable the DHCP server on the router.
 
 I did this too. On LAN and WLAN interface.

Good.

  5. Install the ipmasq package, and configure as necessary.
 
 ipmasq is not available on sid. What package replaces it?

Well, I'm not sure.  I've always just used the ipmasq package.

You could try
echo 1  /proc/sys/net/ipv4/ip_forward

To apply this permanently put the following line in /etc/sysctl.conf:
net.ipv4.ip_forward=1

If that doesn't work, maybe someone else knows how.  I'm sure you can do it 
with nothing more than Linux + iptables, but I don't know how.


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Re: Redirect internet connection to wireless router (was: Sharing ppp [...])

2009-10-06 Thread Alan Greenberger
On 2009-10-02, Vinicius Massuchetto viniciusan...@gmail.com wrote:
 Hi all!

 I tried hard a few days ago to share a ppp internet connection through
 the wlan interface on my laptop. I just found out that this is not
 possible because my hardware can't do AP.

 So, I was wondering if I get a standard wireless router and feed it
 with an internet connection from the laptop, configuring my computer
 as a dhcp server.

 Would that work? Did anyone already tried this?

 Thanks!
 --
 Vinícius Massuchetto
 http://vinicius.soylocoporti.org.br

Why not just run squid on the laptop and have browsers on the wlan use
it as a proxy?


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Re: Redirect internet connection to wireless router (was: Sharing ppp [...])

2009-10-04 Thread green
Vinicius Massuchetto wrote at 2009-10-03 07:34 -0500:
 I can't seem to find the Netgear model you recommended on my city.

I recommend a Buffalo WHR-HP-G54 running the DD-WRT firmware.  If the price is 
acceptable to you, it would probably be a good choice.  It will definitely work 
for sharing an internet connection, and probably for whatever MS stuff you 
mentioned also.


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Re: Redirect internet connection to wireless router (was: Sharing ppp [...])

2009-10-03 Thread Vinicius Massuchetto
On Fri, Oct 2, 2009 at 3:00 PM,  j...@jretrading.com wrote:
 Vinicius Massuchetto wrote:

[...]

 So, I was wondering if I get a standard wireless router and feed it
 with an internet connection from the laptop, configuring my computer
 as a dhcp server.

 Would that work? Did anyone already tried this?

 Probably, but it may depend on the router. The Netgear DG834 will do it, I'm
 currently using two with an MS Small Business Server, which is handling DHCP
 for the network. A third router on the network is actually the Internet
 gateway, as the customer is now on ADSL2+ and the version of DG834 that they
 have doesn't do that.

I can't seem to find the Netgear model you recommended on my city.
This one seems to be a good option for me:

 You-Link 54Mbps 802.11g Wireless G Router LAN
- Static  Dynamic Routing With TCP/IP VPN
- pass-through(IPS ec,L2TP),NAT,PPTP
- PPPoe,DHCP(client  server)
- Function: Automatically detects your ISP type,Exposed
Host(DMZ),MACaddress authentication,URL content filtering,logs and
e-mail alerts of Internet activity
- Modulation Type:PFDM with BPSK,QPSK,16QAM,64QAM,DBPSK,DQPSK,CCK
- Firewall:Stateful packet Inspection(SPI) and Dos attack protection
- Encryption:64,128-bit WEP Encryption,WEP-PSK

I suppose its features are enough for this sharing operation. Is there
any other important specification?

 Wireless routers do generally have DHCP servers, though you may want to have
 a different machine do it for some reason, such as automatic DNS
 integration. With MS SBS, it is strongly advised that the SBS handles DHCP,
 mostly for this reason.

That's the case of my ppp connection.

Thanks for helping.
Vinicius


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Re: Redirect internet connection to wireless router (was: Sharing ppp [...])

2009-10-02 Thread joe

Vinicius Massuchetto wrote:

Hi all!

I tried hard a few days ago to share a ppp internet connection through
the wlan interface on my laptop. I just found out that this is not
possible because my hardware can't do AP.

So, I was wondering if I get a standard wireless router and feed it
with an internet connection from the laptop, configuring my computer
as a dhcp server.

Would that work? Did anyone already tried this?

Probably, but it may depend on the router. The Netgear DG834 will do it, 
I'm currently using two with an MS Small Business Server, which is 
handling DHCP for the network. A third router on the network is actually 
the Internet gateway, as the customer is now on ADSL2+ and the version 
of DG834 that they have doesn't do that.


Wireless routers do generally have DHCP servers, though you may want to 
have a different machine do it for some reason, such as automatic DNS 
integration. With MS SBS, it is strongly advised that the SBS handles 
DHCP, mostly for this reason.


--
Joe


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Re: Redirect internet connection to wireless router (was: Sharing ppp [...])

2009-10-02 Thread green
Vinicius Massuchetto wrote at 2009-10-02 11:54 -0500:
 So, I was wondering if I get a standard wireless router and feed it
 with an internet connection from the laptop, configuring my computer
 as a dhcp server.
 
 Would that work? Did anyone already tried this?

This is possible.

Here is one way:
1. Set the IP address statically on the laptop for eth0 (192.168.0.1).
2. Set up a DHCP server (I use dnsmasq) on the laptop, listening on eth0.
3. Configure the DHCP server to give the router a specific IP address, using 
the MAC address of the router (IP 192.168.0.2).
4. Disable the DHCP server on the router.
5. Install the ipmasq package, and configure as necessary.

You might prefer this way:
1. Connect the router  laptop using wired or wireless, and use dhclient or 
your choice to get an IP from it using DHCP.
2. Configure the router to always give your laptop that address or whatever 
address of your choice, using the MAC address of the laptop's network 
interface that you are using.  Alternatively, set the laptop's IP statically 
outside of the router's DHCP server IP range.
3. Configure the router with that IP address as 'gateway'.
4. Install the ipmasq package, and configure as necessary.


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