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Date:      Wed, 07 May 2003 13:27:46 +0200
From:      "Ronald Weinrich" <freebsd@werosoft.com>
To:        freebsd-questions@freebsd.org
Subject:   Re: no route to host
Message-ID:  <3EB909D2.28350.968671F@localhost>
In-Reply-To: <200305071245.05490.danny@ricin.com>
References:  <3EB8E570.5774.8DA49D3@localhost>

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Hi Danny Pansters,
thank you for clearing me up
so that means 213.47.28.166/32 is only  ip 213.47.28.166

if try to create a static route from 192.168.0.0/16 to my dns1 on 213.47.28.162/32 I 
have to add to my rc.conf
static_route="dns"
route_nds="-net 192.168.0.0/16  213.47.28.162/32"

--------- ip xx.xx.xx.xx 
MY ROUTER
--------- 213.47.28.161 is gw for ..162 and 163
    |
    |
     --------www dns1   xx.xx.xx.162
    |
     --------dns2 xx.xx.xx.163
    |
    |
--------- ed0 xx.xx.xx.166

 freebsd-box 
 ipnat should run here  :)
 (ipfilter) later may be ;)

--------- ep0 192.168.0.1  gw for intra 192.168.0.xx
    ^
    ^        
192.168.0.0/16
correct ?

thank you
ron 




> No. 213.0.0.0/8 would mean a whole class A netblock. The number 8 means 8 bits 
> for the subnet part (starting from left, which is only the first byte, or 8 
> bits) and 24 bits for the host part. So this is a subnet that can have ~ 16 
> million hosts. More precisely the 213.47.28.160/8 describes what can be 
> called host 47.28.160 on that huge subnet (supernet really).
> 
> In contrast, 213.47.28.166 with a 255.255.255.240 mask is 213.47.28.166/28. So 
> your gateway is host number 6 on the 213.47.28.160/28 subnet, 213.47.28.160 
> being the network address, 213.47.28.175 being the broadcast address and the 
> 14 numbers inbetween can be used as host IPs. 
> 
> 
> It's not a firewalling/NAT problem, although it's a good idea to have routing 
> OK'd before dealing with filtering/NAT on the gateway/firewall box.
> 
> HTH,
> 
> Danny
> 
> 
> > from outside  213.47.28.160/28 to ed0 213.47.28.166/32 works
> >
> > is that a  ipnat problem? or a routing problem?
> 
> <snip>
> 
> -- 
> 
> Ricin Radio!
> http://www.mp3.com/stations/ricin_radio
> 
> 




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