From: Scott Morris (swm@emanon.com)
Date: Mon Dec 26 2005 - 12:54:56 GMT-3
Sorry I did my example using wildcard masks (brain stuck in ACL mode)...
But you should get the point of certain bits are network, others are
subnet/host just like subnetting/supernetting in IPv4 space!
Scott
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
EitaroUEMURA
Sent: Monday, December 26, 2005 7:59 AM
To: ccielab@groupstudy.com
Subject: OSPFv3 area range prefix? IEWB 3.0 Lab4 18.3
Hi Group,
Configure router summary
"ipv6 address 2001:141:1:12::2/64" and "ipv6 address 2001:141:1:25::2/64",
use "area 1 range 2001:141:1::/58".
Why isn't it a "/59" ?
I have tried configuration that is below.
interface Loopback100
ipv6 address 2001:141:1::1/64
ipv6 ospf 1 area 1
!
interface Loopback101
ipv6 address 2001:141:1:1::1/64
ipv6 ospf 1 area 1
!
....Omitted
interface Loopback199
no ip address
ipv6 address 2001:141:1:99::1/64
ipv6 ospf 1 area 1
----------------------------------------------------
If configuration with "area 1 range 2001:141:1::/63"
The result is "0 to 1" is summarized.
OI 2001:141:1::/63 [110/1]
via FE80::202:4AFF:FE8C:6438, FastEthernet0/0 OI 2001:141:1:2::1/128
[110/1]
via FE80::202:4AFF:FE8C:6438, FastEthernet0/0 OI 2001:141:1:3::1/128
[110/1] ....Omitted
----------------------------------------------------
If configuration with "area 1 range 2001:141:1::/62"
The result is "0 to 3" is summarized.
OI 2001:141:1::/62 [110/1]
via FE80::202:4AFF:FE8C:6438, FastEthernet0/0 OI 2001:141:1:4::1/128
[110/1]
via FE80::202:4AFF:FE8C:6438, FastEthernet0/0 OI 2001:141:1:5::1/128
[110/1] ....Omitted
----------------------------------------------------
If configuration with "area 1 range 2001:141:1::/61"
The result is "0 to 7" is summarized.
OI 2001:141:1::/61 [110/1]
via FE80::202:4AFF:FE8C:6438, FastEthernet0/0 OI 2001:141:1:8::1/128
[110/1]
via FE80::202:4AFF:FE8C:6438, FastEthernet0/0 OI 2001:141:1:9::1/128
[110/1] ....Omitted
----------------------------------------------------
If configuration with "area 1 range 2001:141:1::/60"
The result is "0 to 9" is summarized.
OI 2001:141:1::/60 [110/1]
via FE80::202:4AFF:FE8C:6438, FastEthernet0/0 OI 2001:141:1:10::1/128
[110/1]
via FE80::202:4AFF:FE8C:6438, FastEthernet0/0 OI 2001:141:1:11::1/128
[110/1]
via FE80::202:4AFF:FE8C:6438, FastEthernet0/0 ....Omitted
----------------------------------------------------
If configuration with "area 1 range 2001:141:1::/59"
The result is "0 to 19" is summarized.
OI 2001:141:1::/59 [110/1]
via FE80::202:4AFF:FE8C:6438, FastEthernet0/0 OI 2001:141:1:20::1/128
[110/1]
via FE80::202:4AFF:FE8C:6438, FastEthernet0/0 OI 2001:141:1:21::1/128
[110/1]
via FE80::202:4AFF:FE8C:6438, FastEthernet0/0 ....Omitted
----------------------------------------------------
If configuration with "area 1 range 2001:141:1::/58"
The result is "0 to 39" is summarized.
OI 2001:141:1::/58 [110/1]
via FE80::202:4AFF:FE8C:6438, FastEthernet0/0 OI 2001:141:1:40::1/128
[110/1]
via FE80::202:4AFF:FE8C:6438, FastEthernet0/0 OI 2001:141:1:41::1/128
[110/1]
via FE80::202:4AFF:FE8C:6438, FastEthernet0/0 ....Omitted
Thanks in advance,
Eitaro
This archive was generated by hypermail 2.1.4 : Mon Jan 09 2006 - 07:07:52 GMT-3