ddwrt dns 강제 설정

방법은 여러가지가 있는데 본인은 옵션 1을 선택했다. 중요한건 스트릭트오더를 넣는다는 것이다. 

아.. 이런. 아래 사이트 출처를 ... 잊어버렸다; 아무튼 퍼온글임을 알린다; 고의가 아니었다. 죄송 (해외사이트임. 아마 ... 네트워크 관련 서비스를 하는곳에서 DDWRT 사용자에게 자사의 DNS로 설정하는 방법을 알려주는 내용이었다)

OPTION 1:

Step 1:

Navigate to Setup > Basic Setup > Network Setup > Network Address Server Settings (DHCP)

set Static DNS 1, Static DNS 2 to Unotelly's DNS servers (closest to your location)

http://unotelly.com/unodns/global

Step 2:

For Static DNS 3, you can either set it with another Unotelly DNS, 

or change it to 10.0.0.0 (a non-usable IP)

Step 3:

Apply the settings

Step 4:

Navigate to  Services > Services > Services Management > DNSMasq > Additional DNSMasq Options

and enter: strict-order

Step 5:

Apply the Changes

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OPTION 2:

DD-WRT and router in general are sometimes tricky to setup. As result, we recommend you to setup UnoDNS first on your PC/Mac to see if your network supports DNS service. If it works, then you can proceed with this tutorial. 

Step 1:

Go to http://www.unotelly.com/unodns/global and write down the IP address of two UnoDNS servers
that are cloeset to your current location. 


Step 2:

Login to DDWRT. Go to Setup > Network Setup > Network Address Server Settings (DHCP)

Use DNSMasq for DHCP    (uncheck)
Use DNSMasq for DNS      (check)
DHCP-Authoritative            (uncheck)

Click Apply Settings if necessary



Step 3:

Go to Services > DNSMasq and set the following:

DNSMasq     - Enable

Local DNS   - Disable

Under Additional DNSMasq Options, enter:

no-resolv
strict-order
server=[ip-address-of-UnoDNS-1]
server=[ip-address-of-UnoDNS-2]

Replace [ip-address-of-UnoDNS-x] with the UnoDNS server IPs you got from Step 1. Click Apply Settings

 

Step 4:

Go to the Administration tab on your DD-WRT gateway page.

Click on the Commands tab.

In the Commands box, enter the following:

iptables -t nat -A PREROUTING -i br0 -p udp --dport 53 -j DNAT --to $(nvram get lan_ipaddr)

iptables -t nat -A PREROUTING -i br0 -p tcp --dport 53 -j DNAT --to $(nvram get lan_ipaddr)

Step 5:

click Save Firewall

Step 6:

Close all browsers, restart your computer, and go to http://quickstart.unotelly.com to check your setup status.