Hi all,
I'm using mikrotik RB450G form my local LAN with NAT to 1 WAN interface. All clients have static IP from DHCP server. They getting IP base on MAC address. Since couple days without changing anything in RB strange thing's happens. On every 4-6 min connected client's have renewing IP from dhcp. It looks like they pull out ethernet plug and put it on in 1 second. Its very frustrating because rdp or ssh connection switch to inactive. Lease time is set to 3 days. What could do that?
Thanks for all answers
dhcp problem
Are you using a switch? What does the log show?
Re: dhcp problem
Log shows lots of:
Interface eth1 is for WAN, and bridge eth2 and eth3 for LAN.
Code: Select all
Apr/04/2012 12:16:07 dhcp,info default assigned 192.168.1.106 to 18:87:96:BF:59:93
Apr/04/2012 12:16:07 dhcp,debug,packet default sending ack with id 983964351 to 192.168.1.106
Apr/04/2012 12:16:07 dhcp,debug,packet ciaddr = 0.0.0.0
Apr/04/2012 12:16:07 dhcp,debug,packet yiaddr = 192.168.1.106
Apr/04/2012 12:16:07 dhcp,debug,packet siaddr = 192.168.1.1
Apr/04/2012 12:16:07 dhcp,debug,packet chaddr = 18:87:96:BF:59:93
Apr/04/2012 12:16:07 dhcp,debug,packet Msg-Type = ack
Apr/04/2012 12:16:07 dhcp,debug,packet Server-Id = 192.168.1.1
Apr/04/2012 12:16:07 dhcp,debug,packet Address-Time = 259200
Apr/04/2012 12:16:07 dhcp,debug,packet Subnet-Mask = 255.255.255.0
Apr/04/2012 12:16:07 dhcp,debug,packet Router = 192.168.1.1
Apr/04/2012 12:16:07 dhcp,debug,packet Domain-Server = 192.168.1.1
Apr/04/2012 12:23:09 dhcp,debug,packet default received request with id 976931980 from 0.0.0.0
Apr/04/2012 12:23:09 dhcp,debug,packet ciaddr = 0.0.0.0
Apr/04/2012 12:23:09 dhcp,debug,packet chaddr = 18:87:96:BF:59:93
Apr/04/2012 12:23:09 dhcp,debug,packet Msg-Type = request
Apr/04/2012 12:23:09 dhcp,debug,packet Address-Request = 192.168.1.106
Apr/04/2012 12:23:09 dhcp,debug,packet Unknown(57) = 05-DC
Apr/04/2012 12:23:09 dhcp,debug,packet Class-Id = "dhcpcd-5.2.10:Linux-3.0.16-gda3fdfc:armv7l:pyramid"
Apr/04/2012 12:23:09 dhcp,debug,packet Host-Name = "android-b538514c796a5967"
Apr/04/2012 12:23:09 dhcp,debug,packet Parameter-List = Subnet-Mask,Static-Route,Router,Domain-Server,Domain-Name,Unknown(28),Address-Time,Renewal-Time,Unknown(59)
Apr/04/2012 12:23:09 dhcp,debug,packet default sending ack with id 976931980 to 192.168.1.106
Apr/04/2012 12:23:09 dhcp,debug,packet ciaddr = 0.0.0.0
Apr/04/2012 12:23:09 dhcp,debug,packet yiaddr = 192.168.1.106
Apr/04/2012 12:23:09 dhcp,debug,packet siaddr = 192.168.1.1
Apr/04/2012 12:23:09 dhcp,debug,packet chaddr = 18:87:96:BF:59:93
Apr/04/2012 12:23:09 dhcp,debug,packet Msg-Type = ack
Apr/04/2012 12:23:09 dhcp,debug,packet Server-Id = 192.168.1.1
Apr/04/2012 12:23:09 dhcp,debug,packet Address-Time = 259200
Apr/04/2012 12:23:09 dhcp,debug,packet Subnet-Mask = 255.255.255.0
Apr/04/2012 12:23:09 dhcp,debug,packet Router = 192.168.1.1
Apr/04/2012 12:23:09 dhcp,debug,packet Domain-Server = 192.168.1.1
Apr/04/2012 12:25:29 dhcp,debug,packet default received request with id 2837387874 from 0.0.0.0
Apr/04/2012 12:25:29 dhcp,debug,packet ciaddr = 0.0.0.0
Apr/04/2012 12:25:29 dhcp,debug,packet chaddr = 00:18:F3:F5:33:25
Apr/04/2012 12:25:29 dhcp,debug,packet Msg-Type = request
Apr/04/2012 12:25:29 dhcp,debug,packet Client-Id = 01-00-18-F3-F5-33-25
Apr/04/2012 12:25:29 dhcp,debug,packet Address-Request = 192.168.1.104
Apr/04/2012 12:25:29 dhcp,debug,packet Host-Name = "GHOST"
Apr/04/2012 12:25:29 dhcp,debug,packet Unknown(81) = 00-00-00-47-48-4F-53-54
Apr/04/2012 12:25:29 dhcp,debug,packet Class-Id = "MSFT 5.0"
Apr/04/2012 12:25:29 dhcp,debug,packet Parameter-List = Subnet-Mask,Domain-Name,Router,Domain-Server,NETBIOS-Name-Server,Unknown(46),Unknown(47),Unknown(31),Static-Route,Classless-Route,Unknown(249),Vendor-Specific
Apr/04/2012 12:25:29 dhcp,debug,packet default sending ack with id 2837387874 to 255.255.255.255