Static Routes IPv6 Cisco IOS - Revision history

Heth: /* Next Hop address */

2011-12-18T16:50:41Z

‎Next Hop address

Heth: /* Random Link-local */

2011-12-17T15:12:55Z

‎Random Link-local

Heth: /* Prefix Renumbering */

2011-12-17T06:54:08Z

‎Prefix Renumbering

Heth: /* Next Hop address */

2011-12-17T06:53:47Z

‎Next Hop address

Heth: /* Links */

2011-12-17T06:45:51Z

‎Links

Heth: /* Next Hop address */

2011-12-17T06:45:41Z

‎Next Hop address

Heth at 06:42, 17 December 2011

2011-12-17T06:42:02Z

Heth: Created page with "The basic syntax for configuring IPv6 statis routes is the same as in IPv4 ;IPv4:ip route [ipv4_prefix][ipv4_address_mask][ipv4_if_address] ;IPv6:ipv6..."

2011-12-17T06:41:46Z

Created page with "The basic syntax for configuring IPv6 statis routes is the same as in IPv4 ;IPv4:ip route [ipv4_prefix][ipv4_address_mask][ipv4_if_address] ;IPv6:ipv6..."

New page

The basic syntax for configuring IPv6 statis routes is the same as in [[Static Routes Cisco IOS|IPv4]]
;IPv4:ip route [ipv4_prefix][ipv4_address_mask][ipv4_if_address]
;IPv6:ipv6 route [ipv6_prefix/prefix_length][ipv6_if_address]
:Ex: ipv6 route ::/0 FastEthernet0/1 FE80::206:2AFF:FEa0:ce84

=Next Hop address=
When configuring static Routes in IPv6 it is not recommended to use ''global unicast'' addresses as next-hop address. Use Link-local adresses.

{{Technote|heading=extract from RFC2461
|A router must be able to determine the link-local address of each of its neighboring routers in order to ensure that the target address of a Redirect message identifies the neighbor router by its link-local address.
}}
Link-local addresses however uses [[EUI-64]] based on the Routers MAC-address. If the Router is replaced the neighboring Routers will have to be reconfigured with the new Link-local address. How to avoid this mess I do not know. When configuring IPv6 addresses on Router interfaces I set the Link-local IPv6 address to match the Global unique IPv6 address. See example below.
<source lang=cli>
interface FastEthernet1/0
ipv6 address 2001:16D8:DD85:B280::2/64
ipv6 address FE80:16D8:DD85:B280::2 link-local
</source>
=Links=
*[http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-stat_routes.html Cisco IPv6 static Rotues]
*[http://www.6diss.org/workshops/see-2/routing-external.pdf 6DISS Workshop notes from 2007]
[[Category:IPv6]]

@@ Line 5: / Line 5: @@
 =Next Hop address=
-When configuring static Routes in IPv6 it is not recommended to use [[Global Unicast IPv6 Address|global unicast]] addresses as next-hop address. Use [[Link-Local IPv6 Address|Link Local]] adresses.
+When configuring static Routes in IPv6 it is not recommended to use [[Global Unicast IPv6 Address|global unicast]] addresses as next-hop address. Use the [[Link-Local IPv6 Address|Link Local]] adresses.
 {{Technote|heading=extract from {{rfc|rfc=2461}}
@@ Line 11: / Line 11: @@
 }}
 [[Link-Local IPv6 Address|Link Local]] addresses however uses [[EUI-64]] based on the Routers MAC-address. If the Router is replaced the neighboring Routers will have to be reconfigured with the new [[Link-Local IPv6 Address|Link Local]] address.
 =Random Link-local=
 How to avoid this mess I do not know. When configuring IPv6 addresses on Router interfaces I set the [[Link-Local IPv6 Address|Link Local]] IPv6 address to match the  [[Global Unicast IPv6 Address|global unicast]] address. See example below.

@@ Line 20: / Line 20: @@
 ==Prefix Renumbering==
 The above method gives the problem when a site is renummbered having multiple IPv6  [[Global Unicast IPv6 Address|global unicast]] addresses for a period. There can be only one [[Link-Local IPv6 Address|Link Local]] IPv6 Address pr. Interface.
 =Links=

@@ Line 19: / Line 19: @@
 </source>
 ==Prefix Renumbering==
-The above method gives the problem when a site i renummbered having multiple IPv6  [[Global Unicast IPv6 Address|global unicast]] addresses for a period. There can be only one [[Link-Local IPv6 Address|Link Local]] IPv6 Address pr. Interface.
+The above method gives the problem when a site is renummbered having multiple IPv6  [[Global Unicast IPv6 Address|global unicast]] addresses for a period. There can be only one [[Link-Local IPv6 Address|Link Local]] IPv6 Address pr. Interface.
 =Links=

@@ Line 5: / Line 5: @@
 =Next Hop address=
-When configuring static Routes in IPv6 it is not recommended to use ''global unicast'' addresses as next-hop address. Use Link-local adresses.
+When configuring static Routes in IPv6 it is not recommended to use [[Global Unicast IPv6 Address|global unicast]] addresses as next-hop address. Use [[Link-Local IPv6 Address|Link Local]] adresses.
 {{Technote|heading=extract from {{rfc|rfc=2461}}
-|A router must be able to determine the link-local address of each of its neighboring routers in order to ensure that the target address of a Redirect message identifies the neighbor router by its link-local address.
+|A router must be able to determine the [[Link-Local IPv6 Address|Link Local]] address of each of its neighboring routers in order to ensure that the target address of a Redirect message identifies the neighbor router by its [[Link-Local IPv6 Address|Link Local]] address.
 }}
-Link-local addresses however uses [[EUI-64]] based on the Routers MAC-address. If the Router is replaced the neighboring Routers will have to be reconfigured with the new Link-local address. How to avoid this mess I do not know. When configuring IPv6 addresses on Router interfaces I set the Link-local IPv6 address to match the Global unique IPv6 address. See example below.
+[[Link-Local IPv6 Address|Link Local]] addresses however uses [[EUI-64]] based on the Routers MAC-address. If the Router is replaced the neighboring Routers will have to be reconfigured with the new [[Link-Local IPv6 Address|Link Local]] address.
 <source lang=cli>
 interface FastEthernet1/0
@@ Line 16: / Line 18: @@
   ipv6 address FE80:16D8:DD85:B280::2 link-local
 </source>
 =Links=

@@ Line 20: / Line 20: @@
 *[http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-stat_routes.html Cisco IPv6 static Rotues]
 *[http://www.6diss.org/workshops/see-2/routing-external.pdf 6DISS Workshop notes from 2007]
 {{Source cli}}
 [[Category:IPv6]]