Difference between revisions of "IS-IS IPv6 Cisco IOS"
From Teknologisk videncenter
m (→Configuring IPv6 IS-IS) |
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==IPv6 IS-IS through IPv4 only islands== | ==IPv6 IS-IS through IPv4 only islands== | ||
| − | Because IS-IS uses [[CLNP]] and not [[IPv6]] a standard [[IPv6-over-IPv4-Tunnel]]can't be used. A [[GRE]] tunnel through IPv4 is necessary. | + | Because IS-IS uses [[CLNP]] and not [[IPv6]] a standard [[IPv6-over-IPv4-Tunnel]] can't be used. A [[GRE]] tunnel through IPv4 is necessary. |
<source lang=cli> | <source lang=cli> | ||
router isis | router isis | ||
Revision as of 06:16, 7 June 2011
For generel IS-IS and IS-IS for Ipv4 see IS-IS
Configuring IPv6 IS-IS
Example
hostname R1
!
router isis
address-family ipv6
redistribute static
exit-address-family
net 49.0001.1921.6801.0001.00
!
interface fastethernet0/0
address 2001:410:ffff:1::1/64
ipv6 router isis
isis circuit-type level-2-onlyIPv6 IS-IS through IPv4 only islands
Because IS-IS uses CLNP and not IPv6 a standard IPv6-over-IPv4-Tunnel can't be used. A GRE tunnel through IPv4 is necessary.
router isis
net 49.0001.1921.6801.0001.00
!
interface tunnel0
ipv6 address 2001:410:ffff:1::1/64
tunnel source ethernet0
tunnel destination 132.214.1.3
tunnel mode gre ipv6
ipv6 router isis