Separate LAN and WLAN (light)
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Revision as of 21:23, 7 March 2018
Contents |
Introduction
This is intended to be a 'light' version of Separate_LAN_and_WLAN. You should refer back to Separate_LAN_and_WLAN when you need more basic information.
Device used
This is a rough draft of a page that details how I separated the WIFI from the LAN on Build 27506 2015-09-07 DD-WRT v3.0-r27506 (07/09/15) std On a Buffalo WHR-HP-G300N
(It's a Atheros device. Some menus may vary slightly from Broadcom hardware.)
Screenshots
Firewall Script
Lastly, this goes in the Commands section, Save Firewall:
#Allow guest bridge access to Internet iptables -I FORWARD -i br1 -m state --state NEW -j ACCEPT iptables -I FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu #Allow br0 (LAN) access to br1 (WLAN) iptables -I FORWARD -i br0 -o br1 -m state --state NEW -j ACCEPT #Block access from br1 (WIRELESS) to br0 (LAN) iptables -I FORWARD -i br1 -o br0 -m state --state NEW -j DROP #NAT to make Internet work iptables -t nat -I POSTROUTING -o br0 -j SNAT --to `nvram get lan_ipaddr` #Enable NAT on the WAN port to correct a bug in builds over 17000 iptables -t nat -I POSTROUTING -o `get_wanface` -j SNAT --to `nvram get wan_ipaddr` #Deny access to local router services from Guest (240.x br1) network iptables -I INPUT -i br1 -p tcp --dport telnet -j REJECT --reject-with tcp-reset iptables -I INPUT -i br1 -p tcp --dport ssh -j REJECT --reject-with tcp-reset #iptables -I INPUT -i br1 -p tcp --dport www -j REJECT --reject-with tcp-reset iptables -I INPUT -i br1 -p tcp --dport https -j REJECT --reject-with tcp-reset
References & Credits
- Separate_LAN_and_WLAN - The existing guide
- V24: WLAN separate from LAN, with independent DHCP - A similar guide, updated for build v24
- WLAN separate from LAN, with independent dhcp, etc - Command line method (old)
- Multiple WLANs - For unbridging virtual wireless interfaces
Categories: Interfaces | Wlan | Lan | Basic tutorials