Re: [gentoo-user] Sharing an internet connection
Hi again. Sorry I didn't get back to you sooner. On Thu, 12 Mar 2009 17:42:55 -0700 Grant emailgr...@gmail.com wrote: Thanks Dan. No matter what I do, I can't get the other laptop to communicate with my laptop. It can ping the router which is between us, but it can't get to the other side. I've got dnsmasq and shorewall running on my laptop. Any idea what the problem could be? Yes; the problem is probably the routing tables. - Grant
Re: [gentoo-user] Sharing an internet connection
Hi again. Sorry I didn't get back to you sooner. On Thu, 12 Mar 2009 17:42:55 -0700 Grant emailgr...@gmail.com wrote: Thanks Dan. No matter what I do, I can't get the other laptop to communicate with my laptop. It can ping the router which is between us, but it can't get to the other side. I've got dnsmasq and shorewall running on my laptop. Any idea what the problem could be? Yes; the problem is probably the routing tables. I moved the WAN from wlan0 to ppp0 and things started working. I guess I must have made some other change at the same time. Thanks a lot for your help. This is a really slick setup. - Grant
Re: [gentoo-user] Sharing an internet connection
Grant ha scritto: I travel with a strong external antenna for picking up faint wireless signals. It works great, May I ask which antenna? It's a long time I'm looking for something like that but I keep being told that external antennas are often useless (I'm thinking of the over-the-counter usb stuff) m. Here it is: http://www.hawkingtech.com/products/productlist.php?CatID=32FamID=58ProdID=152 Pair this with a USB network adapter and a 15 meter USB extender cable and you're set. It's a great antenna. Thanks! m.
Re: [gentoo-user] Sharing an internet connection
On Thu, 12 Mar 2009 13:26:45 -0700 Grant emailgr...@gmail.com wrote: I travel with a strong external antenna for picking up faint wireless signals. It works great, but my girlfriend struggles to connect with her built-in antenna. I do have a travel router (D-Link DWL-G730) so I'd like to be able to do something like this: WAN-my laptop-travel router-girlfriend's laptop That sounds right to me. Read on... I use wicd and I'm not sure how to go about this, especially since my laptop DHCPs for an IP from the WAN so I'm not sure how to define the gateway for the travel router when following this: I don't have experience with wicd or the DWL-G730, but I did do a little research on those and have suggestions. If I were setting this up myself it would be with another Wifi card in AP mode, which I'd be running DHCP on. In that case, the client (in this case your girlfriend's laptop) would be given a DHCP address and a default route of my AP's address. Alternately I might forego the DHCP server setup and instruct the client to set a particular IP and route (the route would be my AP's IP). In either case, nameservers could be copied directly from my laptop to the client's, or my laptop could supply its own IP for nameserver and provide DNS service or proxy itself. My laptop would then have a route through the AP for internal traffic, and use the (dhcp provided) default route for other traffic. Therefore, the AP would never need to specify the IP of the external connection. The client box would route all traffic through the AP's IP so it wouldn't need to know the external IP either. My laptop would have to run IPTables for NAT. You'll need network address translation because external IPs like websites won't be able to route to the client box's IP. NAT gets around this. The AP provided by my laptop must also be on a different subnet than the external network my laptop is connected to. If my laptop was connected to an access point offering a 192.168.1.0/24 subnet, for example, a seperate subnet like 192.168.2.0/24 ought to be used on the client side of my laptop. Personally I'd probably use an rfc class b subnet since they're rare, or another rare subnet like 192.168.66.0/24. http://www.gentoo.org/doc/en/home-router-howto.xml Is there a simple way to pull this off? In short, no, but it's not too complicated, and the home router guide will help you, but using your travel router may make things more complicated. The travel router probably will itself provide NAT and DHCP so I'm not sure without playing with one how it would look to set it up that way. You might want to provide those services yourself and use the travel router as an AP instead.
Re: [gentoo-user] Sharing an internet connection
Grant ha scritto: I travel with a strong external antenna for picking up faint wireless signals. It works great, May I ask which antenna? It's a long time I'm looking for something like that but I keep being told that external antennas are often useless (I'm thinking of the over-the-counter usb stuff) m.
Re: [gentoo-user] Sharing an internet connection
I travel with a strong external antenna for picking up faint wireless signals. It works great, May I ask which antenna? It's a long time I'm looking for something like that but I keep being told that external antennas are often useless (I'm thinking of the over-the-counter usb stuff) m. Here it is: http://www.hawkingtech.com/products/productlist.php?CatID=32FamID=58ProdID=152 Pair this with a USB network adapter and a 15 meter USB extender cable and you're set. It's a great antenna. - Grant
Re: [gentoo-user] Sharing an internet connection
I travel with a strong external antenna for picking up faint wireless signals. It works great, but my girlfriend struggles to connect with her built-in antenna. I do have a travel router (D-Link DWL-G730) so I'd like to be able to do something like this: WAN-my laptop-travel router-girlfriend's laptop That sounds right to me. Read on... I use wicd and I'm not sure how to go about this, especially since my laptop DHCPs for an IP from the WAN so I'm not sure how to define the gateway for the travel router when following this: I don't have experience with wicd or the DWL-G730, but I did do a little research on those and have suggestions. If I were setting this up myself it would be with another Wifi card in AP mode, which I'd be running DHCP on. In that case, the client (in this case your girlfriend's laptop) would be given a DHCP address and a default route of my AP's address. Alternately I might forego the DHCP server setup and instruct the client to set a particular IP and route (the route would be my AP's IP). In either case, nameservers could be copied directly from my laptop to the client's, or my laptop could supply its own IP for nameserver and provide DNS service or proxy itself. My laptop would then have a route through the AP for internal traffic, and use the (dhcp provided) default route for other traffic. Therefore, the AP would never need to specify the IP of the external connection. The client box would route all traffic through the AP's IP so it wouldn't need to know the external IP either. My laptop would have to run IPTables for NAT. You'll need network address translation because external IPs like websites won't be able to route to the client box's IP. NAT gets around this. The AP provided by my laptop must also be on a different subnet than the external network my laptop is connected to. If my laptop was connected to an access point offering a 192.168.1.0/24 subnet, for example, a seperate subnet like 192.168.2.0/24 ought to be used on the client side of my laptop. Personally I'd probably use an rfc class b subnet since they're rare, or another rare subnet like 192.168.66.0/24. http://www.gentoo.org/doc/en/home-router-howto.xml Is there a simple way to pull this off? In short, no, but it's not too complicated, and the home router guide will help you, but using your travel router may make things more complicated. The travel router probably will itself provide NAT and DHCP so I'm not sure without playing with one how it would look to set it up that way. You might want to provide those services yourself and use the travel router as an AP instead. Thanks Dan. No matter what I do, I can't get the other laptop to communicate with my laptop. It can ping the router which is between us, but it can't get to the other side. I've got dnsmasq and shorewall running on my laptop. Any idea what the problem could be? - Grant
Re: [gentoo-user] Sharing linux's internet connection with an iMac?
Hi, On Mon, 27 Mar 2006 01:29:54 -0600 Boyd Stephen Smith Jr. [EMAIL PROTECTED] wrote: Yes. Set up a bridge device on the laptop between the wifi interface and the iMac interface; assuming your setup is as simple as I think, that should be all you need to do. Most likely it wouldn't work because of the wlan link layer. Most WiFi cards don't go well with bridging... So routing is the option which is left. -hwh -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Sharing linux's internet connection with an iMac?
Hi Hans-Werner, on Monday, 2006-03-27 at 13:36:38, you wrote: Most likely it wouldn't work because of the wlan link layer. Most WiFi cards don't go well with bridging... So routing is the option which is left. The 802.11 link layer is almost exactly the same as in Ethernet so that should be a driver issue. Particularly the LLC part is completely compatible...I never actually tried the bridging though. cheers! Matthias -- I prefer encrypted and signed messages. KeyID: FAC37665 Fingerprint: 8C16 3F0A A6FC DF0D 19B0 8DEF 48D9 1700 FAC3 7665 pgpgjlXiUP8De.pgp Description: PGP signature
Re: [gentoo-user] Sharing linux's internet connection with an iMac?
Hi, On Mon, 27 Mar 2006 18:23:24 +0200 Matthias Bethke [EMAIL PROTECTED] wrote: on Monday, 2006-03-27 at 13:36:38, you wrote: Most likely it wouldn't work because of the wlan link layer. Most WiFi cards don't go well with bridging... So routing is the option which is left. The 802.11 link layer is almost exactly the same as in Ethernet so that should be a driver issue. Particularly the LLC part is completely compatible...I never actually tried the bridging though. I should have been more verbose. 802.11 may be almost the same regarding the logical link layer, but not the Media Access Control layer. In fact, 802.11 has the DS bits in its headers and potentially up to four relevant addresses for routing the packet (Receiver, Transmitter, Source, Destination for our scenario). Bridging can in fact work if the WiFi node in question can make use of these features. However, most STA's cannot due to restrictions in their firmware. IIRC, that's basically the difference between STA/AP firmware versions. By definition, this is an AP function (see 802.11 standard, 1999, pg. 37ff.), WDS (Wireless Distribution Service). As it isn't relevant for hardware design, I tend to agree that it is a driver problem, although not quite like usual driver problems... -hwh -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Sharing linux's internet connection with an iMac?
On Monday 27 March 2006 01:07, Ian [EMAIL PROTECTED] wrote about '[gentoo-user] Sharing linux's internet connection with an iMac?': I have a Linux laptop, and an iMac. This linux laptop uses a wifi connection to a router for network/internet access. While its connected to the network, can I plug in my iMac to my laptop and fool it into thinking it is connected to the router? I did this a long time ago with 2 windows boxes. Can it be done from Linux to OS X? Yes. Set up a bridge device on the laptop between the wifi interface and the iMac interface; assuming your setup is as simple as I think, that should be all you need to do. Helpful documentation: http://gentoo-wiki.com/HOWTO_setup_a_gentoo_bridge Although, that does mention there could be some issues. If a bridge doesn't work, you can probably just enable IPv4 (and IPv6, if you use it) forwarding and set up your iMac with a static IP. That should get you up and running, although you might want to look deeper into the magic for iptables, iproute2, dhcp, etc. at some point in the future. -- If there's one thing we've established over the years, it's that the vast majority of our users don't have the slightest clue what's best for them in terms of package stability. -- Gentoo Developer Ciaran McCreesh pgpcoc9hrmvkP.pgp Description: PGP signature
Re: [gentoo-user] Sharing linux's internet connection with an iMac?
On 27 March 2006 09:07, Ian wrote: Hi there Just because you guys/gals are smart. I have a Linux laptop, and an iMac. This linux laptop uses a wifi connection to a router for network/internet access. While its connected to the network, can I plug in my iMac to my laptop and fool it into thinking it is connected to the router? I did this a long time ago with 2 windows boxes. Can it be done from Linux to OS X? Of course, it can be done. Set you laptop up as a firewall that uses masquerading or Network Address Translation (NAT) to hide anything behind it. Then point the default route of any box connecting to your laptop to the laptop or use dhcp. Uwe -- Why do consumers keep buying products they will live to curse? -- gentoo-user@gentoo.org mailing list
