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MrBulldops
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Posts: 4
Joined: Sat May 02, 2020 5:50 pm

ERROR: couldn't resolve dns name

Sat May 13, 2023 2:04 pm

Hello,
I would like to ask you for help with home network issue.

Problem is that I can't update the RouterOS on the Router B. Error message is "could not resolve dns names". Updates on Router A is working fine.

I am a real beginner and it is my home network. May I ask someone for help, please? Here are the settings of the router A.

Router A:
/interface wireless
set [ find default-name=wlan1 ] band=2ghz-b/g/n channel-width=20/40mhz-XX \
    country="czech republic" disabled=no distance=indoors frequency=auto \
    installation=indoor mode=ap-bridge ssid=Pejchal wireless-protocol=802.11
set [ find default-name=wlan2 ] band=5ghz-a/n/ac channel-width=20/40/80mhz-XXXX \
    country="czech republic" disabled=no distance=indoors frequency=auto \
    installation=indoor mode=ap-bridge ssid=Pejchal wireless-protocol=802.11
/interface vlan
add interface=ether1 name=vlan-848 vlan-id=848
/interface pppoe-client
add add-default-route=yes disabled=no interface=vlan-848 keepalive-timeout=60 \
    max-mru=1480 max-mtu=1480 mrru=1600 name=pppoe-ERI use-peer-dns=yes user=\
    e22140599
/interface list
add comment=defconf name=WAN
add comment=defconf name=LAN
/interface lte apn
set [ find default=yes ] ip-type=ipv4 use-network-apn=no
/interface wireless security-profiles
set [ find default=yes ] authentication-types=wpa-psk,wpa2-psk mode=\
    dynamic-keys supplicant-identity=MikroTik
/ip pool
add name=dhcp ranges=192.168.88.10-192.168.88.254
/ip dhcp-server
add address-pool=dhcp interface=bridge name=defconf
/interface bridge port
add bridge=bridge comment=defconf ingress-filtering=no interface=ether2
add bridge=bridge comment=defconf ingress-filtering=no interface=ether3
add bridge=bridge comment=defconf ingress-filtering=no interface=ether4
add bridge=bridge comment=defconf ingress-filtering=no interface=ether5
add bridge=bridge comment=defconf ingress-filtering=no interface=wlan1
add bridge=bridge comment=defconf ingress-filtering=no interface=wlan2
/ip neighbor discovery-settings
set discover-interface-list=LAN
/ipv6 settings
set disable-ipv6=yes max-neighbor-entries=8192
/interface list member
add comment=defconf interface=bridge list=LAN
add comment=defconf interface=ether1 list=WAN
/interface ovpn-server server
set auth=sha1,md5
/ip address
add address=192.168.88.1/24 comment=defconf interface=bridge network=\
    192.168.88.0
/ip dhcp-client
add comment=defconf interface=ether1
/ip dhcp-server network
add address=192.168.88.0/24 comment=defconf gateway=192.168.88.1
/ip dns
set allow-remote-requests=yes servers=84.19.64.3,84.19.64.4,8.8.8.8
/ip dns static
add address=192.168.88.1 comment=defconf name=router.lan
/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 hw-offload=yes
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="defconf: masquerade" ipsec-policy=\
    out,none out-interface=pppoe-ERI
/ipv6 route
add disabled=no dst-address=::/0 gateway=pppoe-ERI routing-table=main scope=30 \
    target-scope=10
/ipv6 address
# address pool error: pool not found: ERI (4)
add eui-64=yes from-pool=ERI interface=bridge
/ipv6 dhcp-client
add interface=pppoe-ERI pool-name=ERI pool-prefix-length=56 request=prefix
/ipv6 nd
set [ find default=yes ] mtu=1480
/system clock
set time-zone-name=Europe/Prague
/system scheduler
add interval=1d name=reboot on-event="/system reboot" policy=\
    ftp,reboot,read,write,policy,test,password,sniff,sensitive,romon \
    start-date=may/05/2021 start-time=03:00:00
/tool mac-server
set allowed-interface-list=LAN
/tool mac-server mac-winbox
set allowed-interface-list=LAN
 
MrBulldops
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Topic Author
Posts: 4
Joined: Sat May 02, 2020 5:50 pm

Re: ERROR: couldn't resolve dns name

Sat May 13, 2023 2:05 pm

Router B:
/interface wireless
set [ find default-name=wlan1 ] band=2ghz-b/g/n channel-width=20/40mhz-XX country="czech republic" disabled=no distance=indoors frequency=auto installation=indoor mode=ap-bridge ssid=Pejchal wireless-protocol=802.11
set [ find default-name=wlan2 ] band=5ghz-a/n/ac channel-width=20/40/80mhz-XXXX country="czech republic" disabled=no distance=indoors frequency=5240 installation=indoor mode=ap-bridge ssid=Pejchal wireless-protocol=802.11
/interface list
add comment=defconf name=WAN
add comment=defconf name=LAN
/interface lte apn
set [ find default=yes ] ip-type=ipv4 use-network-apn=no
/interface wireless security-profiles
set [ find default=yes ] authentication-types=wpa-psk,wpa2-psk mode=dynamic-keys 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=yes interface=bridge name=defconf
/interface bridge port
add bridge=bridge comment=defconf ingress-filtering=no interface=ether2
add bridge=bridge comment=defconf ingress-filtering=no interface=ether3
add bridge=bridge comment=defconf ingress-filtering=no interface=ether4
add bridge=bridge comment=defconf ingress-filtering=no interface=ether5
add bridge=bridge comment=defconf ingress-filtering=no interface=wlan1
add bridge=bridge comment=defconf ingress-filtering=no interface=wlan2
/ip settings
set max-neighbor-entries=8192
/ipv6 settings
set max-neighbor-entries=8192
/interface list member
add comment=defconf interface=bridge list=LAN
add comment=defconf interface=ether1 list=WAN
/interface ovpn-server server
set auth=sha1,md5
/ip address
add address=192.168.88.2/24 comment=defconf interface=bridge network=192.168.88.0
add address=192.168.88.1/24 interface=ether1 network=192.168.88.0
/ip dhcp-client
add comment=defconf disabled=yes interface=ether1
/ip dhcp-server network
add address=192.168.88.0/24 comment=defconf dns-server=192.168.88.1 gateway=192.168.88.2 netmask=24
/ip dns
set allow-remote-requests=yes servers=192.168.88.1,8.8.8.8
/ip dns static
add address=192.168.88.2 comment=defconf name=router.lan
/ip firewall filter
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 hw-offload=yes
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="defconf: masquerade" disabled=yes ipsec-policy=out,none out-interface-list=WAN
/ip route
add disabled=no distance=1 dst-address=0.0.0.0/0 gateway=192.168.88.1 pref-src=0.0.0.0 routing-table=main scope=30 suppress-hw-offload=no target-scope=10
/ipv6 firewall address-list
add address=::/128 comment="defconf: unspecified address" list=bad_ipv6
add address=::1/128 comment="defconf: lo" list=bad_ipv6
add address=fec0::/10 comment="defconf: site-local" list=bad_ipv6
add address=::ffff:0.0.0.0/96 comment="defconf: ipv4-mapped" list=bad_ipv6
add address=::/96 comment="defconf: ipv4 compat" list=bad_ipv6
add address=100::/64 comment="defconf: discard only " list=bad_ipv6
add address=2001:db8::/32 comment="defconf: documentation" list=bad_ipv6
add address=2001:10::/28 comment="defconf: ORCHID" list=bad_ipv6
add address=3ffe::/16 comment="defconf: 6bone" list=bad_ipv6
/ipv6 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 ICMPv6" protocol=icmpv6
add action=accept chain=input comment="defconf: accept UDP traceroute" port=33434-33534 protocol=udp
add action=accept chain=input comment="defconf: accept DHCPv6-Client prefix delegation." dst-port=546 protocol=udp src-address=fe80::/10
add action=accept chain=input comment="defconf: accept IKE" dst-port=500,4500 protocol=udp
add action=accept chain=input comment="defconf: accept ipsec AH" protocol=ipsec-ah
add action=accept chain=input comment="defconf: accept ipsec ESP" protocol=ipsec-esp
add action=accept chain=input comment="defconf: accept all that matches ipsec policy" ipsec-policy=in,ipsec
add action=drop chain=input comment="defconf: drop everything else not coming from LAN" in-interface-list=!LAN
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 packets with bad src ipv6" src-address-list=bad_ipv6
add action=drop chain=forward comment="defconf: drop packets with bad dst ipv6" dst-address-list=bad_ipv6
add action=drop chain=forward comment="defconf: rfc4890 drop hop-limit=1" hop-limit=equal:1 protocol=icmpv6
add action=accept chain=forward comment="defconf: accept ICMPv6" protocol=icmpv6
add action=accept chain=forward comment="defconf: accept HIP" protocol=139
add action=accept chain=forward comment="defconf: accept IKE" dst-port=500,4500 protocol=udp
add action=accept chain=forward comment="defconf: accept ipsec AH" protocol=ipsec-ah
add action=accept chain=forward comment="defconf: accept ipsec ESP" protocol=ipsec-esp
add action=accept chain=forward comment="defconf: accept all that matches ipsec policy" ipsec-policy=in,ipsec
add action=drop chain=forward comment="defconf: drop everything else not coming from LAN" in-interface-list=!LAN
/system clock
set time-zone-name=Europe/Prague
/system routerboard settings
set auto-upgrade=yes
/system scheduler
add interval=1d name=reboot on-event="/system reboot\r\
    \n" policy=ftp,reboot,read,write,policy,test,password,sniff,sensitive,romon start-date=jan/07/2022 start-time=02:00:00
Thanks for any help!
 
holvoetn
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Posts: 5318
Joined: Tue Apr 13, 2021 2:14 am
Location: Belgium

Re: ERROR: couldn't resolve dns name  [SOLVED]

Sat May 13, 2023 2:09 pm

Try to set dns on router b the same as a, since that one works.
 
MrBulldops
just joined
Topic Author
Posts: 4
Joined: Sat May 02, 2020 5:50 pm

Re: ERROR: couldn't resolve dns name

Sat May 13, 2023 2:20 pm

I did that and I turned my router B from Home AP into Bridge AP and now it's working. Thank you very much!

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