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I have 12.04 installed on my Samsung laptop with RTL8111/8168B PCI Express Gigabit Ethernet controller. But I can't connect to or create a Ad-hoc network. Whether I need to install any additional drivers for enabling Ad-hoc network?

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An ad-hoc network is a wireless network; the RTL8111/8168 is a wired Ethernet controller and can neither create nor connect to any wireless networks. Please clarify your question. –  izx Aug 18 '12 at 18:06
    
But I can connect to wifi networks available and use the inernet without any difficulty –  Anoop C S Aug 20 '12 at 4:18
    
Please pastebin the output of sudo lshw -c network so we can determine which wireless card you are using. –  izx Aug 20 '12 at 7:13
    
*-network description: Wireless interface product: Centrino Wireless-N 130 vendor: Intel Corporation physical id: 0 bus info: pci@0000:02:00.0 logical name: wlan0 version: 34 serial: b8:03:05:39:6a:75 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwlwifi driverversion=3.2.0-29-generic firmware=18.168.6.1 ip=192.168.1.2 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn –  Anoop C S Sep 2 '12 at 9:28
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1 Answer 1

Unfortunately, your card is a wired card. It does not have any sort of transmitter or antenna. You can, however, use a cable, to connect to another computer or a router. An alternative is to buy a wireless adapter. You may install it inside your computer. IT, however, should have an adapter already installed, being a laptop.

Should you try to set up a wired network, you need at least one device to run a DHCP server(many routers do that) or manually assign an IP address to every device.

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