hi
i have mikrotik rb5009 and running hotspot on vlan 20. but getting lots of “dhcp1 offering lease 10.10.0.138 for xx:xx:xx:xx:xx:xx without success” and “Detected conflict by ARP response for 10.10.0.138 from AA:1A:A1:99:7E:27”. How to fix this?
i check there is no other DHCP server on Network. in Arp table there 4 or 5 ip assign to 1 mac address. don’t know if i did something wrong with configuration. any help would be appreciate.
here is my config. and attached screenshot from Mikrotik.
“/interface bridge
add comment=“Office network” name=Office
/interface ethernet
set [ find default-name=ether1 ] comment=“Main internet”
set [ find default-name=ether4 ] comment=Hotsport
/interface vlan
add interface=ether4 name=vlan20_hsport vlan-id=20
/ip hotspot profile
add hotspot-address=10.10.0.1 name=hsprof1
/ip hotspot user profile
set [ find default=yes ] keepalive-timeout=1d shared-users=unlimited transparent-proxy=yes
/ip pool
add name=dhcp_pool3 ranges=172.16.1.2-172.16.1.254
add name=dhcp_pool5 ranges=10.10.0.2-10.10.3.254
add name=dhcp_pool6 ranges=10.0.0.2-10.0.0.254
/ip dhcp-server
add address-pool=dhcp_pool3 interface=ether4 lease-time=1d name=dhcp3
add address-pool=dhcp_pool5 interface=vlan20_hsport lease-time=1d name=dhcp1
add address-pool=dhcp_pool6 interface=Office lease-time=1d name=dhcp2
/ip hotspot
add address-pool=dhcp_pool5 addresses-per-mac=5 disabled=no idle-timeout=23h interface=vlan20_hsport keepalive-timeout=1d1h login-timeout=1d1h name=
hotspot1 profile=hsprof1
/interface bridge port
add bridge=Office interface=ether2
add bridge=Office interface=ether3
add bridge=Office interface=ether5
add bridge=Office interface=ether6
add bridge=Office interface=ether7
/ip neighbor discovery-settings
set discover-interface-list=!dynamic
/interface ovpn-server server
add mac-address=FE:52:F2:87:38:E0 name=ovpn-server1
/ip address
add address=10.10.0.1/22 interface=vlan20_hsport network=10.10.0.0
add address=10.0.0.1/24 interface=Office network=10.0.0.0
add address=172.16.1.1/24 interface=ether4 network=172.16.1.0
add address=96.68.22.98/29 interface=ether1 network=96.68.22.96
/ip dhcp-server alert
add disabled=no interface=vlan20_hsport on-alert=”:log error message="Rogue DHCP Server Discoveered"" valid-server=F4:1E:57:DC:2D:A8
/ip dhcp-server lease
add address=10.10.0.204 mac-address=DC:CD:18:7D:43:49 server=dhcp1
/ip dhcp-server network
add address=10.0.0.0/24 dns-server=8.8.8.8,8.8.4.4 gateway=10.0.0.1
add address=10.10.0.0/22 dns-server=8.8.8.8,8.8.4.4 gateway=10.10.0.1
add address=172.16.1.0/24 dns-server=8.8.8.8,8.8.4.4 gateway=172.16.1.1
/ip dns
set servers=75.75.75.75,75.75.76.76,8.8.8.8
/ip firewall filter
add action=drop chain=forward dst-address=10.0.0.0/24 src-address=10.10.0.0/22
add action=drop chain=forward dst-address=10.10.0.0/22 src-address=10.0.0.0/24
add action=drop chain=forward in-interface=vlan20_hsport out-interface=Office
add action=drop chain=forward in-interface=vlan20_hsport out-interface=ether4
add action=drop chain=forward in-interface=vlan20_hsport out-interface=Office
add action=drop chain=forward in-interface=vlan20_hsport out-interface=ether4
add action=passthrough chain=unused-hs-chain comment=“place hotspot rules here” disabled=yes
add action=accept chain=forward comment=“Allow Forward Good Connection State” connection-state=established,related,new
add action=accept chain=input comment=“Allow Incoming Good Connection State” connection-state=established,related,new
add action=drop chain=forward comment=“Drop Forward Invalid Connecsion State” connection-state=invalid
add action=drop chain=input comment=“Drop Input Invalid Connecsion State” connection-state=invalid
add action=passthrough chain=unused-hs-chain comment=“place hotspot rules here” disabled=yes
add action=accept chain=forward comment=“Allow Forward Good Connection State” connection-state=established,related,new
add action=accept chain=input comment=“Allow Incoming Good Connection State” connection-state=established,related,new
add action=drop chain=forward comment=“Drop Forward Invalid Connecsion State” connection-state=invalid
add action=drop chain=input comment=“Drop Input Invalid Connecsion State” connection-state=invalid
add action=drop chain=forward dst-address=10.0.0.0/24 src-address=10.10.0.0/22
add action=drop chain=forward dst-address=10.10.0.0/22 src-address=10.0.0.0/24
/ip firewall nat
add action=passthrough chain=unused-hs-chain comment=“place hotspot rules here” disabled=yes
add action=masquerade chain=srcnat
add action=redirect chain=dstnat disabled=yes dst-port=53 protocol=tcp src-address-list=“” src-port=“” to-ports=53
add action=redirect chain=dstnat disabled=yes dst-port=53 protocol=udp src-address-list=“” src-port=“” to-ports=53
add action=masquerade chain=srcnat comment=“masquerade hotspot network” src-address=10.10.0.0/24
add action=passthrough chain=unused-hs-chain comment=“place hotspot rules here” disabled=yes
add action=masquerade chain=srcnat
add action=redirect chain=dstnat disabled=yes dst-port=53 protocol=tcp src-address-list=“” src-port=“” to-ports=53
add action=redirect chain=dstnat disabled=yes dst-port=53 protocol=udp src-address-list=“” src-port=“” to-ports=53
add action=masquerade chain=srcnat comment=“masquerade hotspot network” src-address=10.10.0.0/24
/ip hotspot user
add name=guest
/ip route
add disabled=no dst-address=0.0.0.0/0 gateway=96.68.22.102 routing-table=main suppress-hw-offload=no
/ip service
set telnet disabled=yes
set ftp disabled=yes
set www disabled=yes
set ssh disabled=yes
set api disabled=yes
set api-ssl disabled=yes
/system clock
set time-zone-name=America/Chicago
/system clock manual
set time-zone=-06:00
/system identity
set name=Countryinn
/system logging
add disabled=yes prefix="debug " topics=dhcp
/system note
set show-at-login=no
/system ntp client
set enabled=yes
/system ntp client servers
add address=pool.ntp.org
/tool bandwidth-server
set enabled=no
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