Re: [Mikrotik] DHCP and Windows XP

2009-06-12 Thread Butch Evans 
On Sat, 2009-06-13 at 01:39 -0500, Mike Hammett wrote:
> I resolved it...  too many proxy-ARPs in the system.

Not a bad guess.  ;-)

-- 

* Butch Evans   * Professional Network Consultation*
* http://www.butchevans.com/* Network Engineering  *
* http://www.wispa.org/ * WISPA Board Member   *
* http://blog.butchevans.com/   * Wired or Wireless Networks   *



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Re: [Mikrotik] DHCP and Windows XP

2009-06-12 Thread Mike Hammett 

I resolved it...  too many proxy-ARPs in the system.


-
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com



--
From: "Mike Hammett" 
Sent: Friday, June 12, 2009 7:48 PM
To: "Mikrotik discussions" 
Subject: [Mikrotik] DHCP and Windows XP

This laptop used to work fine, now it can't get an IP.  Other laptops can. 
Ideas?


19:45:12 system,info log rule changed by admin
19:45:16 dhcp,debug,packet dhcp1 received discover with id 1455243941 from 
0.0.0.0

19:45:16 dhcp,debug,packet ciaddr = 0.0.0.0
19:45:16 dhcp,debug,packet chaddr = 00:14:A5:87:C3:B0
19:45:16 dhcp,debug,packet Msg-Type = discover
19:45:16 dhcp,debug,packet Unknown(116) = 01
19:45:16 dhcp,debug,packet Client-Id = 01-00-14-A5-87-C3-B0
19:45:16 dhcp,debug,packet Host-Name = "Lothson"
19:45:16 dhcp,debug,packet Class-Id = "MSFT 5.0"
19:45:16 dhcp,debug,packet Parameter-List = 
Subnet-Mask,Domain-Name,Router,Domain-Server,NETBIOS-Name-Server,Unknown(46),Unknown(47),Unknown(31),Static-Route,Unknown(249),Vendor-Specific
19:45:17 dhcp,debug,packet dhcp1 sending offer with id 1455243941 to 
172.16.11.60

19:45:17 dhcp,debug,packet ciaddr = 0.0.0.0
19:45:17 dhcp,debug,packet yiaddr = 172.16.11.60
19:45:17 dhcp,debug,packet siaddr = 172.16.11.1
19:45:17 dhcp,debug,packet chaddr = 00:14:A5:87:C3:B0
19:45:17 dhcp,debug,packet Msg-Type = offer
19:45:17 dhcp,debug,packet Server-Id = 172.16.11.1
19:45:17 dhcp,debug,packet Address-Time = 3600
19:45:17 dhcp,debug,packet Subnet-Mask = 255.255.255.0
19:45:17 dhcp,debug,packet Router = 172.16.11.1
19:45:17 dhcp,debug,packet Domain-Server = 172.16.11.1,65.182.165.30
19:45:17 dhcp,debug,packet dhcp1 received request with id 1455243941 from 
0.0.0.0

19:45:17 dhcp,debug,packet ciaddr = 0.0.0.0
19:45:17 dhcp,debug,packet chaddr = 00:14:A5:87:C3:B0
19:45:17 dhcp,debug,packet Msg-Type = request
19:45:17 dhcp,debug,packet Client-Id = 01-00-14-A5-87-C3-B0
19:45:17 dhcp,debug,packet Address-Request = 172.16.11.60
19:45:17 dhcp,debug,packet Server-Id = 172.16.11.1
19:45:17 dhcp,debug,packet Host-Name = "Lothson"
19:45:17 dhcp,debug,packet Unknown(81) = 
00-00-00-4C-6F-74-68-73-6F-6E-2E

19:45:17 dhcp,debug,packet Class-Id = "MSFT 5.0"
19:45:17 dhcp,debug,packet Parameter-List = 
Subnet-Mask,Domain-Name,Router,Domain-Server,NETBIOS-Name-Server,Unknown(46),Unknown(47),Unknown(31),Static-Route,Unknown(249),Vendor-Specific

19:45:17 dhcp,info,debug dhcp1 assigned 172.16.11.60 to 00:14:A5:87:C3:B0
19:45:17 dhcp,debug,packet dhcp1 sending ack with id 1455243941 to 
172.16.11.60

19:45:17 dhcp,debug,packet ciaddr = 0.0.0.0
19:45:17 dhcp,debug,packet yiaddr = 172.16.11.60
19:45:17 dhcp,debug,packet siaddr = 172.16.11.1
19:45:17 dhcp,debug,packet chaddr = 00:14:A5:87:C3:B0
19:45:17 dhcp,debug,packet Msg-Type = ack
19:45:17 dhcp,debug,packet Server-Id = 172.16.11.1
19:45:17 dhcp,debug,packet Address-Time = 3600
19:45:17 dhcp,debug,packet Subnet-Mask = 255.255.255.0
19:45:17 dhcp,debug,packet Router = 172.16.11.1
19:45:17 dhcp,debug,packet Domain-Server = 172.16.11.1,65.182.165.30
19:45:17 dhcp,debug,packet dhcp1 received decline with id 1455243941 from 
0.0.0.0

19:45:17 dhcp,debug,packet ciaddr = 172.16.11.60
19:45:17 dhcp,debug,packet chaddr = 00:14:A5:87:C3:B0
19:45:17 dhcp,debug,packet Msg-Type = decline
19:45:17 dhcp,debug,packet Client-Id = 01-00-14-A5-87-C3-B0
19:45:17 dhcp,debug,packet Address-Request = 172.16.11.60
19:45:17 dhcp,debug,packet Server-Id = 172.16.11.1
19:45:17 dhcp,info,debug dhcp1 deassigned 172.16.11.60 from 
00:14:A5:87:C3:B0
19:45:27 dhcp,debug,packet dhcp1 received discover with id 3841649083 from 
0.0.0.0

19:45:27 dhcp,debug,packet ciaddr = 0.0.0.0
19:45:27 dhcp,debug,packet chaddr = 00:14:A5:87:C3:B0
19:45:27 dhcp,debug,packet Msg-Type = discover
19:45:27 dhcp,debug,packet Unknown(116) = 01
19:45:27 dhcp,debug,packet Client-Id = 01-00-14-A5-87-C3-B0
19:45:27 dhcp,debug,packet Host-Name = "Lothson"
19:45:27 dhcp,debug,packet Class-Id = "MSFT 5.0"
19:45:27 dhcp,debug,packet Parameter-List = 
Subnet-Mask,Domain-Name,Router,Domain-Server,NETBIOS-Name-Server,Unknown(46),Unknown(47),Unknown(31),Static-Route,Unknown(249),Vendor-Specific
19:45:27 dhcp,debug,packet dhcp1 sending offer with id 3841649083 to 
172.16.11.61

19:45:27 dhcp,debug,packet ciaddr = 0.0.0.0
19:45:27 dhcp,debug,packet yiaddr = 172.16.11.61
19:45:27 dhcp,debug,packet siaddr = 172.16.11.1
19:45:27 dhcp,debug,packet chaddr = 00:14:A5:87:C3:B0
19:45:27 dhcp,debug,packet Msg-Type = offer
19:45:27 dhcp,debug,packet Server-Id = 172.16.11.1
19:45:27 dhcp,debug,packet Address-Time = 3600
19:45:27 dhcp,debug,packet Subnet-Mask = 255.255.255.0
19:45:27 dhcp,debug,packet Router = 172.16.11.1
19:45:27 dhcp,debug,packet Domain-Server = 172

Re: [Mikrotik] DHCP and Windows XP

2009-06-12 Thread Butch Evans 
On Fri, 2009-06-12 at 19:48 -0500, Mike Hammett wrote:
> This laptop used to work fine, now it can't get an IP.  Other laptops can.  
> Ideas?

Some unuseful information removed

> 19:45:12 system,info log rule changed by admin 
> 19:45:16 dhcp,debug,packet dhcp1 received discover with id 1455243941 from 
> 0.0.0.0 
> 19:45:16 dhcp,debug,packet chaddr = 00:14:A5:87:C3:B0 
> 19:45:16 dhcp,debug,packet Msg-Type = discover 
> 19:45:16 dhcp,debug,packet Host-Name = "Lothson" 

The discover packet from C3:B0

> 19:45:17 dhcp,debug,packet dhcp1 sending offer with id 1455243941 to 
> 172.16.11.60 
> 19:45:17 dhcp,debug,packet yiaddr = 172.16.11.60 
> 19:45:17 dhcp,debug,packet siaddr = 172.16.11.1 
> 19:45:17 dhcp,debug,packet chaddr = 00:14:A5:87:C3:B0 
> 19:45:17 dhcp,debug,packet Msg-Type = offer 

Offering 172.16.11.60 to C3:B0

> 19:45:17 dhcp,debug,packet dhcp1 received request with id 1455243941 from 
> 0.0.0.0 
> 19:45:17 dhcp,debug,packet chaddr = 00:14:A5:87:C3:B0 
> 19:45:17 dhcp,debug,packet Msg-Type = request 
> 19:45:17 dhcp,debug,packet Address-Request = 172.16.11.60 

C3:B0 says, give me 172.16.11.60

> 19:45:17 dhcp,info,debug dhcp1 assigned 172.16.11.60 to 00:14:A5:87:C3:B0 

Server thinks all is well.  

> 19:45:17 dhcp,debug,packet dhcp1 sending ack with id 1455243941 to 
> 172.16.11.60 
> 19:45:17 dhcp,debug,packet yiaddr = 172.16.11.60 
> 19:45:17 dhcp,debug,packet siaddr = 172.16.11.1 
> 19:45:17 dhcp,debug,packet chaddr = 00:14:A5:87:C3:B0 
> 19:45:17 dhcp,debug,packet Msg-Type = ack 

OK, C3:B0, you asked for it...that's acceptable by me.

> 19:45:17 dhcp,debug,packet dhcp1 received decline with id 1455243941 from 
> 0.0.0.0 
> 19:45:17 dhcp,debug,packet ciaddr = 172.16.11.60 
> 19:45:17 dhcp,debug,packet chaddr = 00:14:A5:87:C3:B0 
> 19:45:17 dhcp,debug,packet Msg-Type = decline 

C3:B0..."Now that I think about it, never mind.  I don't like that
address after all."

> 19:45:17 dhcp,info,debug dhcp1 deassigned 172.16.11.60 from 00:14:A5:87:C3:B0 

Server: Ok, you don't want it, I'll take it back.

This conversation is common.  It almost always means that the PC thinks
(erroneously, perhaps) that the IP being assigned by DHCP is already in
use on the network.  I'd bet that if you ran a sniffer on the PC, you'd
see an ARP request go out to the network immediately following the DHCP
ACK packet with an answer coming back from someone.  That's why Windows
is declining the IP.  

NOW, for reasons:

1. There is an 802.11 client bridge in the path somewhere between this
PC and the DHCP server.  This can often spell problems.

2. There is some device on the network running proxy-arp and is
misbehaving.

3. Windows is just being Windows.  Always a fun possibility.


-- 

* Butch Evans   * Professional Network Consultation*
* http://www.butchevans.com/* Network Engineering  *
* http://www.wispa.org/ * WISPA Board Member   *
* http://blog.butchevans.com/   * Wired or Wireless Networks   *



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Re: [Mikrotik] DHCP and Windows XP

2009-06-12 Thread Josh Luthman 
Windows?  Format.

On 6/12/09, Mike Hammett  wrote:
> This laptop used to work fine, now it can't get an IP.  Other laptops can.
> Ideas?
>
> 19:45:12 system,info log rule changed by admin
> 19:45:16 dhcp,debug,packet dhcp1 received discover with id 1455243941 from
> 0.0.0.0
> 19:45:16 dhcp,debug,packet ciaddr = 0.0.0.0
> 19:45:16 dhcp,debug,packet chaddr = 00:14:A5:87:C3:B0
> 19:45:16 dhcp,debug,packet Msg-Type = discover
> 19:45:16 dhcp,debug,packet Unknown(116) = 01
> 19:45:16 dhcp,debug,packet Client-Id = 01-00-14-A5-87-C3-B0
> 19:45:16 dhcp,debug,packet Host-Name = "Lothson"
> 19:45:16 dhcp,debug,packet Class-Id = "MSFT 5.0"
> 19:45:16 dhcp,debug,packet Parameter-List =
> Subnet-Mask,Domain-Name,Router,Domain-Server,NETBIOS-Name-Server,Unknown(46),Unknown(47),Unknown(31),Static-Route,Unknown(249),Vendor-Specific
> 19:45:17 dhcp,debug,packet dhcp1 sending offer with id 1455243941 to
> 172.16.11.60
> 19:45:17 dhcp,debug,packet ciaddr = 0.0.0.0
> 19:45:17 dhcp,debug,packet yiaddr = 172.16.11.60
> 19:45:17 dhcp,debug,packet siaddr = 172.16.11.1
> 19:45:17 dhcp,debug,packet chaddr = 00:14:A5:87:C3:B0
> 19:45:17 dhcp,debug,packet Msg-Type = offer
> 19:45:17 dhcp,debug,packet Server-Id = 172.16.11.1
> 19:45:17 dhcp,debug,packet Address-Time = 3600
> 19:45:17 dhcp,debug,packet Subnet-Mask = 255.255.255.0
> 19:45:17 dhcp,debug,packet Router = 172.16.11.1
> 19:45:17 dhcp,debug,packet Domain-Server = 172.16.11.1,65.182.165.30
> 19:45:17 dhcp,debug,packet dhcp1 received request with id 1455243941 from
> 0.0.0.0
> 19:45:17 dhcp,debug,packet ciaddr = 0.0.0.0
> 19:45:17 dhcp,debug,packet chaddr = 00:14:A5:87:C3:B0
> 19:45:17 dhcp,debug,packet Msg-Type = request
> 19:45:17 dhcp,debug,packet Client-Id = 01-00-14-A5-87-C3-B0
> 19:45:17 dhcp,debug,packet Address-Request = 172.16.11.60
> 19:45:17 dhcp,debug,packet Server-Id = 172.16.11.1
> 19:45:17 dhcp,debug,packet Host-Name = "Lothson"
> 19:45:17 dhcp,debug,packet Unknown(81) =
> 00-00-00-4C-6F-74-68-73-6F-6E-2E
> 19:45:17 dhcp,debug,packet Class-Id = "MSFT 5.0"
> 19:45:17 dhcp,debug,packet Parameter-List =
> Subnet-Mask,Domain-Name,Router,Domain-Server,NETBIOS-Name-Server,Unknown(46),Unknown(47),Unknown(31),Static-Route,Unknown(249),Vendor-Specific
> 19:45:17 dhcp,info,debug dhcp1 assigned 172.16.11.60 to 00:14:A5:87:C3:B0
> 19:45:17 dhcp,debug,packet dhcp1 sending ack with id 1455243941 to
> 172.16.11.60
> 19:45:17 dhcp,debug,packet ciaddr = 0.0.0.0
> 19:45:17 dhcp,debug,packet yiaddr = 172.16.11.60
> 19:45:17 dhcp,debug,packet siaddr = 172.16.11.1
> 19:45:17 dhcp,debug,packet chaddr = 00:14:A5:87:C3:B0
> 19:45:17 dhcp,debug,packet Msg-Type = ack
> 19:45:17 dhcp,debug,packet Server-Id = 172.16.11.1
> 19:45:17 dhcp,debug,packet Address-Time = 3600
> 19:45:17 dhcp,debug,packet Subnet-Mask = 255.255.255.0
> 19:45:17 dhcp,debug,packet Router = 172.16.11.1
> 19:45:17 dhcp,debug,packet Domain-Server = 172.16.11.1,65.182.165.30
> 19:45:17 dhcp,debug,packet dhcp1 received decline with id 1455243941 from
> 0.0.0.0
> 19:45:17 dhcp,debug,packet ciaddr = 172.16.11.60
> 19:45:17 dhcp,debug,packet chaddr = 00:14:A5:87:C3:B0
> 19:45:17 dhcp,debug,packet Msg-Type = decline
> 19:45:17 dhcp,debug,packet Client-Id = 01-00-14-A5-87-C3-B0
> 19:45:17 dhcp,debug,packet Address-Request = 172.16.11.60
> 19:45:17 dhcp,debug,packet Server-Id = 172.16.11.1
> 19:45:17 dhcp,info,debug dhcp1 deassigned 172.16.11.60 from
> 00:14:A5:87:C3:B0
> 19:45:27 dhcp,debug,packet dhcp1 received discover with id 3841649083 from
> 0.0.0.0
> 19:45:27 dhcp,debug,packet ciaddr = 0.0.0.0
> 19:45:27 dhcp,debug,packet chaddr = 00:14:A5:87:C3:B0
> 19:45:27 dhcp,debug,packet Msg-Type = discover
> 19:45:27 dhcp,debug,packet Unknown(116) = 01
> 19:45:27 dhcp,debug,packet Client-Id = 01-00-14-A5-87-C3-B0
> 19:45:27 dhcp,debug,packet Host-Name = "Lothson"
> 19:45:27 dhcp,debug,packet Class-Id = "MSFT 5.0"
> 19:45:27 dhcp,debug,packet Parameter-List =
> Subnet-Mask,Domain-Name,Router,Domain-Server,NETBIOS-Name-Server,Unknown(46),Unknown(47),Unknown(31),Static-Route,Unknown(249),Vendor-Specific
> 19:45:27 dhcp,debug,packet dhcp1 sending offer with id 3841649083 to
> 172.16.11.61
> 19:45:27 dhcp,debug,packet ciaddr = 0.0.0.0
> 19:45:27 dhcp,debug,packet yiaddr = 172.16.11.61
> 19:45:27 dhcp,debug,packet siaddr = 172.16.11.1
> 19:45:27 dhcp,debug,packet chaddr = 00:14:A5:87:C3:B0
> 19:45:27 dhcp,debug,packet Msg-Type = offer
> 19:45:27 dhcp,debug,packet Server-Id = 172.16.11.1
> 19:45:27 dhcp,debug,packet Address-Time = 3600
> 19:45:27 dhcp,debug,packet Subnet-Mask = 255.255.255.0
> 19:45:27 dhcp,debug,packet Router = 172.16.11.1
> 19:45:27 dhcp,debug,packet Domain-Server = 172.16.11.1,65.182.165.30
> 19:45:27 dhcp,debug,packet dhcp1 received request with id 3841649083 from
> 0.0.0.0