[j-nsp] IPv6 subnetting

snort bsd snortbsd at yahoo.com.au
Fri Feb 1 01:25:02 EST 2008


Sorry error message was with address 2:10::14/126. I also tried so-called "site-local address", now deprecated, and had similar errors.



----- Original Message ----
From: snort bsd <snortbsd at yahoo.com.au>
To: juniper-nsp <juniper-nsp at puck.nether.net>
Sent: Thursday, 31 January, 2008 11:21:07 PM
Subject: [j-nsp] IPv6 subnetting

Hi 
all:

>From 
RFC4291, 
the 
IPv6 
addressing 
scheme 
is 
more 
like 
nowadays 
IPv4 
VLSM. 
But 
IPv6 
doesn't 
have 
"broadcasting 
addresses". 
Then 
how 
does 
that 
affect 
IPv6 
addressing?

Say, 
fec0:10:10:10::/64, 
intuitively 
we 
know 
that 
we 
can't 
use 
the 
first 
address, 
does 
that 
mean 
we 
can 
use 
rest 
of 
addresses? 
what 
about 
fec0:10:10:10::14/126? 
I 
tested 
on 
a 
router 
(M5) 
and 
it 
would 
not 
take 
it. 
Here 
what 
i 
got 
after 
I 
tried 
to 
commit:

  
'address 
2:10::14/126'
  
  
 
Cannot 
assign 
address 
0 
on 
subnet
error: 
configuration 
check-out 
failed


Then 
later 
tried 
fec0:10:10:10::14/125 
and 
the 
interface 
took 
it.

Thanks 
all

Dave




  
  
  
Make 
the 
switch 
to 
the 
world's 
best 
email. 
Get 
the 
new 
Yahoo!7 
Mail 
now. 
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