Date: Wed, 05 Nov 2003 16:23:29 +0200 From: "Rolf Mendelsohn" <rolf_mendelsohn@hotmail.com> To: freebsd-isp@freebsd.org Subject: Static (incorrect) ARP entry Message-ID: <Law9-F94HpM2yqOX9kO00003ef2@hotmail.com>
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Hi Everybody,
I have a problem with a local ISP who use Alvarion WALKAir 1000 equipment,
which does a sort of 50 / 50 routing / bridging.
The below is actually public addess space, just using 10 for clarity's sake:
Default Gateway: 10.8.16.1
The provider has given me the following information (changed to private IP
space for security reasons):
Default Gateway: 10.8.16.1
My IP's: 10.8.23.121 - 126
Subnet Block: 10.8.23.120/29
This works 100% on a windows machine but does not work at all on any unix
machines.
When my Windows 2000 box is plugged in I get the following:
C:\>arp -a
Interface: 195.8.23.121 on Interface 0x1000003
Internet Address Physical Address Type
10.8.16.1 00-03-40-9c-0a-99 dynamic
C:\>netstat -nr
Route Table
================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x1000003 ...00 02 3f 7e 49 40 ...... Intel 8255x-based Integrated
Fast Ethernet
================================================================
Active Routes:
Network Destination Netmask Gateway Interface
Metric
0.0.0.0 0.0.0.0 10.8.16.1 10.8.23.121 1
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
10.8.23.120 255.255.255.248 10.8.23.121 10.8.23.121 1
10.8.23.121 255.255.255.255 127.0.0.1 127.0.0.1 1
10.8.23.255 255.255.255.255 10.8.23.121 10.8.23.121 1
224.0.0.0 224.0.0.0 10.8.23.121 10.8.23.121 1
255.255.255.255 255.255.255.255 10.8.23.121 10.8.23.121 1
Default Gateway: 10.8.16.1
======================================================================
Persistent Routes:
None
How do I get a Unix machine to misbehave and accept a gateway which is not
on it's connected subnet??? Is this happening because on Proxy ARP?
Even though this is wrong it must be possible? :>)
While I know that this is not solving the cause of the problem it will take
me a while to both convince this isp to let me help & to solve their routing
problems.
Please send replies to me directly as I don't have the time to keep up to
date with all list mail atm.
Any help would be most appreciated.
Regards,
Rolf Mendelsohn
IT Consultant (CCNP)
Cyber Operations Angola:
Mobile: +244 (0)92 524 981
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