Hi guys , i have a little problem . I can't solve facebook.com . I've disabled all filter but the problem persist.
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OpenWrt 21.02.3, r16554-1d4dea6d4f
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root@Router:~# nslookup facebook.com
Server: 127.0.0.1
Address: 127.0.0.1#53
Name: facebook.com
Address 1: 31.13.86.36
Address 2: 2a03:2880:f108:83:face:b00c:0:25de
I can't open the site. Comparing the ip solved to me and @hnyman we are two different IP. If i use 31.13.86.36 in address bar the page does'nt work. If i use 157.240.205.35 the page it work. May be a dns problem?
Facebook (and every large company) has many IP addresses associated with their services, so a difference in DNS resolution does not mean that you've got something wrong there.
Have you tested the ability to reach facebook via different computers and mobile devices? You should try with a variety of device types/OS's (so Windows, Mac, Linux, iOS, Android, etc.)... this will help you determine if the issue is unique to one device/OS or if it is a problem for your entire network.
Two notebook and two android phone same problem. If i use data connection on phones it work so seem centralized in router. I have some filters all disabled during the test but the problem persist . It's mandatory reboot the router or is enough save and apply?
What packages have you installed on your OpenWrt router? Are your client devices able to resolve the IP for facebook but not open it, or can they not resolve at all? Is the OpenWrt router serving as the DNS server for your network? Have you edited the firewall?