Re: [Fwbuilder-discussion] bug: Network Mask 255.255.255.254 ?

[James K. <jam...@ro...>]

Karl Auer wrote:
> On Fri, 2011-10-28 at 13:41 +0200, Daniel Gomez wrote:
>    
>> >  Router1 (with fwbuilder 4.2.2.3541) has one interface with IP
>> >  192.168.10.10/255.255.255.254 and Router2 has the IP
>> >  192.168.10.11/255.255.255.254.
>>      
> Isn't 255.255.255.254 the netmask for a /31? That would make
> 192.168.10.10/31 the network, 192.168.10.10 the network address, and
> 192.168.10.11 the broadcast address, with no addresses for router
> interfaces.
>
> Shouldn't you be using 192.168.10.8/30, and putting .9 and .10 on the
> interfaces?
>
>    
Point to point links, such as a router or VPN, don't have broadcast 
addresses etc.  You need a single address at each and and the two ends 
are generally on a completely different subnet.