[Pkg-exim4-users] Can't accept IP range for relay hosts

[Marc Haber]

Hi,

On Sat, Dec 12, 2009 at 04:52:08PM -0500, Rob Feldman wrote:
> Change update-exim4.conf.conf to:
>   dc_relay_nets='192.168.254.101/200'

You need to read up on netmasks and prefixes
(http://en.wikipedia.org/wiki/CIDR). 101/200 does _not_ mean 101-200,
it's illegal syntax, since there are no 200 bits in a 32 bit address.

Closest and easiest thing you'll probably need is 192.168.254.0/24,
meaning 192.168.254.0 to 192.168.254.255. If you really want to allow
only addresses from 101 to 200, you'll need something more complex:
$ ipcalc 192.168.254.101-192.168.254.200
deaggregate 192.168.254.101 - 192.168.254.200
192.168.254.101/32
192.168.254.102/31
192.168.254.104/29
192.168.254.112/28
192.168.254.128/26
192.168.254.192/29
192.168.254.200/32
$

Greetings
Marc

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