I am trying to figure out how to create a static IP address for my Ubuntu server. So far, I have scoured the internet and have only found how to do it with eth0, when I am using a PCI adapter for my main send/receive. This may not be as efficient as Ethernet, but this is simply for learning web structure, if you will.
Is there a difference between setup for wlan0 and eth0 static IP? If not, can I be referred to a site that explains how to do this in the fullest manner?
Thank you.
I've installed DD-WRT v24-SP2 micro on a Linksys WRT54G2 v1.0, and I'd appreciate some help on setting up a not-so-trivial network.
I've studied the documentation (notably http://www.dd-wrt.com/wiki/index.php/Default_Configuration_Overview, which describes the router's ports), but I can't figure out by myself how to achieve what I want. I have some knowledge on Linux networking and routing, but nothing too fancy.
I want to set up one wired LAN (maybe someday I will partition this into two and connect them with another router, maybe this information could change the way to configure the WRT54G2 now, I don't know).
I want to have 2 WLANs, one internal and another for guests.
The internal one should be completely connected to the LAN (that is, all boxes on the wired network and the internal wireless network must see each other).
The guest WLAN cannot see the LAN, nor the other WLAN (the internal one).
All the computers connected to any of these networks (LAN, internal WLAN and guest WLAN) should be able to obtain IP addresses and DNS server addresses from a DHCP server on the router.
Finally, I have 2 internet connections: a fast one through PPPoE and another, slower on, to which I must connect with DHCP (to obtain a public IP address from the ISP through the cable modem).
All the networks (LAN, internal WLAN and guest WLAN) must be able to access the Internet.
The two connections should work as follows: the faster (PPPoE) one is the "default", every computer should use that connection unless it is down (this may be detected by pinging the gateway, or by any other means if anyone has a better idea), in which case the router should automatically switch to the slower (DHCP) connection. If the PPPoE connection ever is available again, the router should switch back to it once it detects that the connection is available.
Can all this be done with a single DD-WRT micro running on a Linksys WRT54G2 v1.0? What are the VLANs needed, what bridges should I create?
I'm pretty sure I'd be able to setup these networks using a Linux box with 3 network cards (one for PPPoE, one for the other internet connection, and the third for the LAN) and two wireless routers... but after reading the description of all the hardware that can be controlled by DD-WRT, I have the impression that it can handle all of this!!
Thanks in advance!
While testing something with TFTP I noticed lots of timeouts (and slow speed as result) when I used my WLAN - and no problems when using a network cable. A quick test program sending/receiving UDP revealed that there are about 3-5% packets lost.
While it's obvious that WLAN has to be less reliable than LAN, I have no knowledge what loss rates are considered 'normal' - and when there is a need to further investigate the network infrastructure.
Are there 'typical' packet loss rates on WLAN (and other network technologies e.g. PowerLAN, WAN, ...?
Thanks
I was wondering whether it is possible to ban a PC from LAN or WLAN totally or not? I know that banning according to MAC address is useless, as it can be altered.
P.S: assume that no credentials are required to connect the LAN/WLAN.
On Arch Linux, I would like to have eth0 (connected to bridged router) share the connection received from wlan0, I've read tutorials but I'm not command savvy as other users are and don't completely understand.