Community discussions

MikroTik App
 
zyconvaron
just joined
Topic Author
Posts: 1
Joined: Wed Aug 24, 2022 10:10 pm

DNS not resolving

Wed Aug 24, 2022 10:16 pm

I've been having an issue where DNS randomly stops resolving for a couple of hours and then starts working again. I am still able to ping all IP addresses. I've tried changing the DNS servers from google to Cloudflare on both the router and end devices. Any help would be appreciated.
Here is the config of the HEX router board:
# aug/23/2022 05:28:31 by RouterOS 6.49.6
# software id = 3Y2E-QICK
#
# model = RB750Gr3
/interface bridge
add admin-mac=DC:2C:6E:E1:93:D5 auto-mac=no comment=defconf name=bridge
/interface list
add comment=defconf name=WAN
add comment=defconf name=LAN
/interface wireless security-profiles
set [ find default=yes ] supplicant-identity=MikroTik
/ip pool
add name=default-dhcp ranges=192.168.88.10-192.168.88.254
/ip dhcp-server
add address-pool=default-dhcp disabled=no interface=bridge name=defconf
/interface bridge port
add bridge=bridge comment=defconf interface=ether2
add bridge=bridge comment=defconf interface=ether3
add bridge=bridge comment=defconf interface=ether4
add bridge=bridge comment=defconf interface=ether5
/ip neighbor discovery-settings
set discover-interface-list=LAN
/interface list member
add comment=defconf interface=bridge list=LAN
add comment=defconf interface=ether1 list=WAN
/ip address
add address=192.168.88.1/24 comment=defconf interface=bridge network=\
    192.168.88.0
/ip cloud
set ddns-enabled=yes
/ip dhcp-client
add comment=defconf disabled=no interface=ether1
/ip dhcp-server lease
add address=192.168.88.254 client-id=1:74:3e:2b:15:49:d0 mac-address=\
    74:3E:2B:15:49:D0 server=defconf
add address=192.168.88.227 client-id=1:e0:d5:5e:6e:4:d mac-address=\
    E0:D5:5E:6E:04:0D server=defconf
/ip dhcp-server network
add address=192.168.88.0/24 comment=defconf dns-server=8.8.8.8,1.0.0.1 \
    gateway=192.168.88.1
/ip dns
set allow-remote-requests=yes servers=1.1.1.1
/ip dns static
add address=192.168.88.1 comment=defconf name=router.lan
add address=1.1.1.1 name=cloudflare
/ip firewall address-list
add address=obsfucated.sn.mynetname.net list=WAN-IP
/ip firewall filter
add action=accept chain=input comment=\
    "defconf: accept established,related,untracked" connection-state=\
    established,related,untracked
add action=drop chain=input comment="defconf: drop invalid" connection-state=\
    invalid
add action=accept chain=input comment="defconf: accept ICMP" protocol=icmp
add action=accept chain=input comment=\
    "defconf: accept to local loopback (for CAPsMAN)" dst-address=127.0.0.1
add action=drop chain=input comment="defconf: drop all not coming from LAN" \
    in-interface-list=!LAN
add action=accept chain=forward comment="defconf: accept in ipsec policy" \
    ipsec-policy=in,ipsec
add action=accept chain=forward comment="defconf: accept out ipsec policy" \
    ipsec-policy=out,ipsec
add action=fasttrack-connection chain=forward comment="defconf: fasttrack" \
    connection-state=established,related
add action=accept chain=forward comment=\
    "defconf: accept established,related, untracked" connection-state=\
    established,related,untracked
add action=drop chain=forward comment="defconf: drop invalid" \
    connection-state=invalid
add action=drop chain=forward comment=\
    "defconf: drop all from WAN not DSTNATed" connection-nat-state=!dstnat \
    connection-state=new in-interface-list=WAN
/ip firewall nat
add action=masquerade chain=srcnat comment="Harpin NAT" disabled=yes \
    dst-address=192.168.88.0/24 src-address=192.168.88.0/24
add action=masquerade chain=srcnat comment="defconf: masquerade" \
    ipsec-policy=out,none out-interface-list=WAN
add action=dst-nat chain=dstnat disabled=yes dst-address-list=WAN-IP \
    dst-port=48889 protocol=tcp to-addresses=192.168.88.227
/system clock
set time-zone-name=America/New_York
/system identity
set name=RouterOS
/tool mac-server
set allowed-interface-list=LAN
/tool mac-server mac-winbox
set allowed-interface-list=LAN
 
User avatar
BartoszP
Forum Guru
Forum Guru
Posts: 2876
Joined: Mon Jun 16, 2014 1:13 pm
Location: Poland

Re: DNS not resolving

Wed Aug 24, 2022 10:24 pm

I accepted post and added proper formatting codes for code, removed serial number and IP WAN settings.

Who is online

Users browsing this forum: Huy0880 and 39 guests