CEFv6 Switching for 6to4 Tunnels |
12.2(28)SB 12.2(25)SG 12.2(33)SRA 12.2(18)SXE 12.2(12)T 12.4 15.0(1)S |
Cisco Express Forwarding switching can be used for IPv6 manually configured tunnels. |
IPv6 Tunneling--6RD IPv6 Rapid Deployment |
15.1(3)T |
The 6RD feature allows a service provider to provide a unicast IPv6 service to customers over its IPv4 network by using encapsulation of IPv6 in IPv4. |
IPv6 Tunneling--Automatic 6to4 Tunnels |
12.0(22)S 12.2(14)S 12.2(28)SB 12.2(33)SRA12.2(18)SXE 12.2(2)T 12.3 12.3(2)T 12.4 12.4(2)T 15.0(1)S |
An automatic 6to4 tunnel allows isolated IPv6 domains to be connected over an IPv4 network to remote IPv6 networks. |
IPv6 Tunneling--Automatic IPv4-Compatible Tunnels |
12.0(22)S 12.2(14)S 12.2(28)SB 12.2(33)SRA 12.2(18)SXE 12.2(2)T 12.3 12.3(2)T 12.4 12.4(2)T 15.0(1)S |
Automatic IPv4-compatible tunnels use IPv4-compatible IPv6 addresses. |
IPv6 Tunneling--IPv6 GRE Tunnels in CLNS Networks |
12.2(25)S 12.2(28)SB 12.2(33)SRA 12.3(7)T 12.4 12.4(2)T |
GRE tunneling of IPv4 and IPv6 packets through CLNS networks enables Cisco CTunnels to interoperate with networking equipment from other vendors. |
IPv6 Tunneling--IP over IPv6 GRE Tunnels |
12.2(30)S 12.3(7)T 12.4 12.4(2)T |
GRE tunnels are links between two points, with a separate tunnel for each link. |
IPv6 Tunneling--IPv4 over IPv6 Tunnels |
12.2(30)S 12.2(33)SRA 12.3(7)T 12.4 12.4(2)T 15.0(1)S |
IPv6 supports this feature |
IPv6 Tunneling--IPv6 over IPv4 GRE Tunnels |
12.0(22)S1 12.2(14)S 12.2(28)SB 12.2(33)SRA 12.2(17a)SX1 12.2(4)T 12.3 12.3(2)T 12.4 12.4(2)T 15.0(1)S |
GRE tunnels are links between two points, with a separate tunnel for each link. The tunnels are not tied to a specific passenger or transport protocol, but in this case carry IPv6 as the passenger protocol with the GRE as the carrier protocol and IPv4 or IPv6 as the transport protocol. |
IPv6 Tunneling--IPv6 over IPv6 Tunnels |
12.2(30)S 12.3(7)T 12.4 12.4(2)T |
IPv6 supports this feature |
IPv6 Tunneling--IPv6 over UTI Using a Tunnel Line Card2 |
12.0(23)S |
IPv6 supports this feature. |
IPv6 Tunneling--ISATAP Tunnel Support |
12.2(14)S 12.2(28)SB 12.2(33)SRA12.2(17a)SX112.2(15)T 12.3 12.3(2)T 12.4 12.4(2)T 15.0(1)S |
ISATAP is an automatic overlay tunneling mechanism that uses the underlying IPv4 network as a NBMA link layer for IPv6. |
IPv6 Tunneling--Manually Configured IPv6 over IPv4 Tunnels |
12.0(23)S3 12.2(14)S 12.2(28)SB 12.2(33)SRA 12.2(2)T 12.3 12.3(2)T 12.4 12.4(2)T 15.0(1)S |
A manually configured tunnel is equivalent to a permanent link between two IPv6 domains over an IPv4 backbone. |
mGRE Tunnels over IPv6 |
15.2(1)T |
mGRE tunnels are configured to enable service providers deploy IPv6 in their core infrastructure. |