Re: [cobalt-users] Raq2 Network IP Address Configuration

[Gerald Waugh <gwaugh@xxxxxxxxxxxxxxxxxxxxxxx>]

On Mon, 28 Jul 2003, Darryl Hafermalz wrote:

> Now that I've gotten my IP issue resolved at the ISP, I'm "peeling" the
> onion as I have encountered another problem.
>
> I have been assigned  block of public IP addresses that do not have
> traditional 8 bit boundaries.  Here is what I have been assigned -
>
> 207.142.10.101 Gateway /29
> 207.142.10.102 MIA-9012
> 207.142.10.103 MIA-9012
> 207.142.10.104 MIA-9012
> 207.142.10.105 MIA-9012
> 207.142.10.106 MIA-9012
> 207.142.10.107 Broadcast
>
> Subnet: 255.255.255.248
>
> However, my Raq thinks the network setup is as follows -
>
> 207.142.10.96 Gateway /29
> 207.142.10.97 MIA-9012
> 207.142.10.98 MIA-9012
> 207.142.10.99 MIA-9012
> 207.142.10.100 MIA-9012
> 207.142.10.101 MIA-9012
> 207.142.10.102 Broadcast
>
> Subnet: 255.255.255.248
>
> As a result, I have only one IP address usable for hosts - 102.
>
> The raq is assuming that my 8 address block is in the 12th block of
> addresses starting from zero.  Here is an example of what my eth0:0 looks
> like -
>
> IPADDR=207.142.10.103
> NETWORK=207.142.10.96
> NETMASK=255.255.255.248
> BROADCAST=207.142.10.103
>
> The gateway address, as set in the gui, is set to 207.142.10.101 which
> allows the 102 address to work correctly.
>
> How would I correct this problem if the ISP relegates me to this grouping of
> addresses?   If I manually correct the eth0:0 file, there is no improvement
> in the situation.
>

  Your netmask should be 255.255.255.248
  which in binary is 11111111 1111111 11111111 11111000
  The 0's are the allowed addresses, 8 of them
  The network should be 207.142.10.100 (the lowest address)
  The broadcast address is 207.142.10.107 (the highest address)
  leaving you with 5 useable IP addresses

   207.142.10.100 (000) Network
   207.142.10.101 (001) Gateway
   207.142.10.102 (010) Useable
   207.142.10.103 (011) Useable
   207.142.10.104 (100) Useable
   207.142.10.105 (101) Useable
   207.142.10.106 (110) Useable
   207.142.10.107 (111) Broadcast

Set your raQ up to use the above addresses
At ControlPanel->Network
  Default Gateway 207.142.10.101
  IP Address      207.142.10.102
  Subnet Mask     255.255.255.248

Gerald
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