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Monowall and Captive Portal

Monowall and Captive Portal. Timothy Meade Eric Stolten. What Is Monowall?. Embedded firewall software package m0n0wall is based on a bare-bones version of FreeBSD, along with a web server, PHP and a few other utilities. The entire system configuration is stored in one single XML text file.

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Monowall and Captive Portal

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  1. Monowall and Captive Portal Timothy Meade Eric Stolten

  2. What Is Monowall? • Embedded firewall software package • m0n0wall is based on a bare-bones version of FreeBSD, along with a web server, PHP and a few other utilities. • The entire system configuration is stored in one single XML text file.

  3. What Is a Captive Portal? • The captive portal is a web page that users/clients are forced to visit before they are granted access to the internet. • At this page they are asked to enter there user name and password. • This username and password are passed along to the RADIUS server

  4. The flow of data

  5. How to Build a Monowall System • Basic things you need: • Null modem cable • Compact Flash media 8 meg+ • Embedded PC system • Soekris (who we used) • PC engines • Access point for wireless

  6. Creating monowall • The first thing you need to do is download an image of monowall and burn it onto your CF card with physdiskwrite.Exe.

  7. First Boot • For the first boot. Connect the null modem cable to the soekris box and power it on. • Once fully booted connect the lan interface to the switch. Load a web browser and input http://192.168.1.1 to login to the web GUI of monowall. • The Login/password originally was admin/mono.

  8. Wan Configuration

  9. Lan Configuration

  10. Captive Portal configuration

  11. DHCP Setup

  12. D-link Router/AP Configuration • Assigned the IP 192.168.0.2 • Disabled DHCP • Changed SSID (service set identifier) to “354AP” • Password for admin and user changed to mono354

  13. Physical Connection to the Network. AP Wireless user Lan port 311 311 311 311 Monowall Switches WAN port Lab 3 Lab 1 DHCP Lab2 NIS Lab 4 RADIUS Gateway

  14. Why It Took So Long • Almost every time you mess up the configuration you have to reload the configuration file. • Not using an AP • Cant bridge lan/opt1 interfaces and run captive portal • Misuse of the AP • From monowall a connection was made to the WAN port of the AP it should have been on the switch side.

  15. Other Plans? • Changing the DHCP pool from 192.168.X.X to a range within our subnet.

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