Sub-netting
Adnan Mumbasic
Hello,
I try to divide a C-class net into 8 parts:
I want to divide 193.155.164.0 into
193.155.164.0 - 193.155.164.31
193.155.164.32 - 193.155.164.63
193.155.164.64 - ...
If I try to manages routes:
ip route 193.155.164.0 255.255.255.224 next-hop I get following error:
inconsistent address and netmask
if I set netmask to 255.255.255.0 then it works (naturally)
ip route 193.155.164.32 255.255.255.224 next-hop is o.k
ip route 193.155.164.64 255.255.255.224 next-hop is o.k
what could it be?
Best regards
Adnan Mumbasic
Paul Blakeslee
On Jul 29, 1996 12:42:43 in article <Sub-netting>, 'Adnan Mumbasic
<Adnan.M...@seitz.de>' wrote:
>
>
>what could it be?
you have not used the "ip subnet zero" command?
PRB
Ploner Matthias
Try insert the following configuration string:
ip subnet-zero.
I think it is because per default Cisco thinks of the ip address
193.155.164.0 as netaddress for the whole C Class. To utilize the
address you must insert the string specified above.
best regards
Matthias
--
Dr. Matthias Ploner tel. 039-471-555503
Dnet s.r.l. fax. 039-471-555500
Via Galvani 33 e-mail: ma...@dnet.it
39100 Bolzano http://www.dnet.it
Paul Ferguson
The [sub]network address you are attempting to use resides in IP subnet 0.
Use the global command 'ip subnet-zero' to allow usage of host
addresses which reside in this subnet.
Subnetting with a subnet address of zero generally is not allowed
because of the confusion inherent in having a network and a subnet
with indistinguishable addresses. For example, if network 131.108.0.0
is subnetted as 255.255.255.0, subnet zero would be written as
131.108.0.0 -- which is identical to the network address.
See also:
http://www.cisco.com/warp/public/701/3.html
- paul
--
Paul Ferguson || ||
Consulting Engineering || ||
Reston, Virginia USA |||| ||||
tel: +1.703.716.9538 ..:||||||:..:||||||:..
e-mail: pfer...@cisco.com c i s c o S y s t e m s
Srinivas Vegesna
You need the command 'ip subnet-zero'.
Srinivas
=>>Hello,
=>>
=>>I try to divide a C-class net into 8 parts:
=>>I want to divide 193.155.164.0 into
=>>
=>>193.155.164.0 - 193.155.164.31
=>>193.155.164.32 - 193.155.164.63
=>>193.155.164.64 - ...
=>>
=>>If I try to manages routes:
=>>
=>>ip route 193.155.164.0 255.255.255.224 next-hop I get following error:
=>>inconsistent address and netmask
=>>if I set netmask to 255.255.255.0 then it works (naturally)
=>>
=>>ip route 193.155.164.32 255.255.255.224 next-hop is o.k
=>>ip route 193.155.164.64 255.255.255.224 next-hop is o.k
=>>
=>>
=>>what could it be?
=>>
=>>Best regards
=>>
=>>
=>>Adnan Mumbasic
rmc...@hboe.on.ca
In <31FC95...@seitz.de>, Adnan Mumbasic <Adnan.M...@seitz.de> writes:
>Hello,
>
>I try to divide a C-class net into 8 parts:
>
>193.155.164.32 - 193.155.164.63
>193.155.164.64 - ...
>
>
>if I set netmask to 255.255.255.0 then it works (naturally)
>
>
L. Brouns
Paul Ferguson <pfer...@cisco.com> wrote:
>:The [sub]network address you are attempting to use resides in IP subnet 0.
>:Use the global command 'ip subnet-zero' to allow usage of host
>:addresses which reside in this subnet.
>:Subnetting with a subnet address of zero generally is not allowed
>:because of the confusion inherent in having a network and a subnet
>:with indistinguishable addresses. For example, if network 131.108.0.0
>:is subnetted as 255.255.255.0, subnet zero would be written as
>:131.108.0.0 -- which is identical to the network address.
>:See also:
>: http://www.cisco.com/warp/public/701/3.html
>:
>:- paul
>:At 12:42 PM 7/29/96 +0200, Adnan Mumbasic wrote:
>:>Hello,
>:>
>:>I try to divide a C-class net into 8 parts:
>:>I want to divide 193.155.164.0 into
>:>
>:>193.155.164.0 - 193.155.164.31
>:>193.155.164.32 - 193.155.164.63
>:>193.155.164.64 - ...
>:>
>:>If I try to manages routes:
>:>
>:>ip route 193.155.164.0 255.255.255.224 next-hop I get following error:
>:>inconsistent address and netmask
>:>if I set netmask to 255.255.255.0 then it works (naturally)
>:>
>:>ip route 193.155.164.32 255.255.255.224 next-hop is o.k
>:>ip route 193.155.164.64 255.255.255.224 next-hop is o.k
>:>
>:>
>:>what could it be?
>:>
>:>Best regards
>:>
>:>
>:>Adnan Mumbasic
>:>
>:--
>:Paul Ferguson || ||
>:Consulting Engineering || ||
>:Reston, Virginia USA |||| ||||
>:tel: +1.703.716.9538 ..:||||||:..:||||||:..
>:e-mail: pfer...@cisco.com c i s c o S y s t e m s
Loud
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