Re: U of S wireless and linux

On 4-Jan-07, at 5:14 PM, Dave Scarfe wrote:

> On Wednesday 03 January 2007 19:47, Tony Arkles wrote:
>> You're pretty much screwed right now if you want a robust solution
>> that works everywhere.
>>
>> The problem is that the dhcp server hands out an IP for the default
>> gateway that is not within the local subnet.
>
> Not correct. The campus dhcp server does hand out a default
> gateway that is
> within the local subnet, but it is not the first address in the
> subnet.
> Typically it is network_address + 3 or network_address + 4.
>

I disagree.

 From my Mac:

ifconfig:
en1: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
         inet6 fe80::214:51ff:fe79:a7b2%en1 prefixlen 64 scopeid 0x5
         inet 172.17.236.89 netmask 0xffffffc0 broadcast 172.17.236.127
         ether 00:14:51:79:a7:b2
         media: autoselect status: active
         supported media: autoselect

netstat -r -n:

Destination Gateway Flags Refs Use Netif
Expire
default 128.233.122.254 UGSc 15 107 en1

The IP address that the router gives out is not a real routable address.
Received on Thu Jan 4 18:11:04 2007