[LARTC] semi-OT: internal IP range

[LARTC] semi-OT: internal IP range

[Payal Rathod]

Hi,
The other day I went to my friend's company where her local LAN IP 
was 37.0.0.8 I was pretty shocked since that IP is not for internal 
use. So, I asked her system admin about it and he muttered something 
about classless IP range and went off. Was he right in giving such a 
range to internal IPs?
Also, the netmask was 255.255.255.0 and the default gateway was 
37.0.1.x. Is this weird too?

Thanks a lot for the answers in advance.
With warm regards,
-Payal

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Re: [LARTC] semi-OT: internal IP range

[gypsy]

Payal Rathod wrote:
> 
> Hi,
> The other day I went to my friend's company where her local LAN IP
> was 37.0.0.8 I was pretty shocked since that IP is not for internal
> use. So, I asked her system admin about it and he muttered something
> about classless IP range and went off. Was he right in giving such a
> range to internal IPs?
> Also, the netmask was 255.255.255.0 and the default gateway was
> 37.0.1.x. Is this weird too?
> 
> Thanks a lot for the answers in advance.
> With warm regards,
> -Payal

http://www.iana.org/assignments/ipv4-address-space
says 37.0.0.0/8 is "Reserved".

To me, that means they can assign it when, and to whom, they wish; but
that for now it is not a real internet IP block.

While nobody forces an admin to use a non-routable ("Private Use") IP,
it makes me wonder what that guy is up to.  My firewall DROPs all IANA
Reserved networks.
--
gypsy
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