Separate LAN and WLAN (light)
From DD-WRT Wiki
(Difference between revisions)
Revision as of 00:34, 11 February 2016 (edit) S2s2 (Talk | contribs) ← Previous diff |
Revision as of 22:57, 16 February 2016 (edit) (undo) S2s2 (Talk | contribs) m Next diff → |
||
Line 18: | Line 18: | ||
iptables -I FORWARD -i br1 -m state --state NEW -j ACCEPT | 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 | 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 | 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 | iptables -I FORWARD -i br1 -o br0 -m state --state NEW -j DROP | ||
#NAT to make Internet work | #NAT to make Internet work | ||
Line 29: | Line 30: | ||
iptables -I INPUT -i br1 -p tcp --dport ssh -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 www -j REJECT --reject-with tcp-reset | ||
- | iptables -I INPUT -i br1 -p tcp --dport https -j REJECT --reject-with tcp-reset</pre> | + | iptables -I INPUT -i br1 -p tcp --dport https -j REJECT --reject-with tcp-reset </pre> |
Revision as of 22:57, 16 February 2016
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
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