| Sun Ethernet Fabric Operating System CLI Enterprise Reference Manual
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IPv6 |
IPv6 is a new version of IP which is designed to be an evolutionary step from IPv4. It can be installed as a normal software upgrade in Internet devices and is interoperable with the current IPv4. It has expanded routing and addressing capabilities because of the 128-bit addressing as compared to the 32-bit addressing in IPv4. Its deployment strategy is designed to not have any flag days or other dependencies. IPv6 is designed to run well on high performance networks (for example, extreme-Ethernet, OC-12, ATM, and so on.) and at the same time still be efficient for low-bandwidth networks (such as wireless). In addition, it provides a platform for new Internet functionality that will be required in the near future.
IPv6 includes a transition mechanism, which is designed to allow users to adopt and deploy IPv6 in a highly diffuse fashion and to provide direct interoperability between IPv4 and IPv6 hosts. The IPv6 transition allows the users to upgrade their hosts to IPv6, and the network operators to deploy IPv6 in routers, with very little coordination between the two.
The changes from IPv4 to IPv6 fall primarily into the following categories.
- Expanded routing and addressing capabilities
- Usage of anycast address
- Header format simplification
- Improved support for options
- Quality-of-service capabilities
- Authentication and privacy capabilities
4.1 IPv6 Commands
The list of CLI commands for the configuration of IPv6 is as follows:
4.1.1 ipv6 enable
Enables IPv6 processing on an interface that has not been configured with an explicit IPv6 address. The no form of the command disables IPv6 processing on the interface that has not been configured with an explicit IPv6 address.
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Mode
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Interface Configuration
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Defaults
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Disabled.
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Example
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SEFOS(config-if)# ipv6 enable
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Notes
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IPv6 is enabled on the default VLAN interface.
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4.1.2 ipv6 unicast-routing
Enables unicast routing. The no form of the command disables unicast routing.
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Mode
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Global Configuration
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Defaults
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Enabled.
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Example
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SEFOS(config)# ipv6 unicast-routing
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4.1.3 ipv6 address - prefix prefix-len
Configures IPv6 address on the interface. The no form of the command deletes the configured IPv6 address.
ipv6 address prefix prefix-len [{unicast | anycast | eui64}]
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no ipv6 address prefix prefix-len [{unicast | anycast | eui64}]
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Syntax Description
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prefix - IPv6 prefix for the interface.
prefix-len - IPv6 prefix length.
unicast - Unicast type of prefix.
anycast - Anycast type of prefix.
eui64 - Type of prefix where the latter 64 bits are formed from the link layer address.
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Mode
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Interface Configuration
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Defaults
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unicast
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Example
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SEFOS(config-if)# ipv6 address 3333::1111 64 unicast
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Notes
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The prefix length for eui64 type must be 64.
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4.1.4 ipv6 address - ipv6-prefix | prefix-length
Configures IPv6 address on the interface.
ipv6 address {ipv6-prefix | prefix_length} [{unicast | anycast | eui-64 | link-local}]
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Syntax Description
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ipv6-prefix - IPv6 prefix for the interface.
prefix-length - IPv6 prefix length.
unicast - Unicast type of prefix.
anycast - Anycast type of prefix.
eui64 - Type of Prefix where the latter 64 bits are formed from the link layer address.
link-local - Link local type prefix.
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Mode
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Interface Configuration
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Defaults
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unicast
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Example
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SEFOS(config-if)# ipv6 address 3333::1111/64 unicast
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Notes
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The prefix length for eui64 type must be 64.
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4.1.5 ipv6 - link-local address
Configures the IPv6 link-local address on the interface. The no form of the command deletes the configured IPv6 link-local address.
ipv6 address prefix link-local
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no ipv6 address prefix link-local
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Syntax Description
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prefix - IPv6 Prefix for the interface.
link-local - Type of address.
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Mode
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Interface Configuration
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Example
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SEFOS(config-if)# ipv6 address fe80::2222 link-local
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Notes
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The prefix specified must be a valid link-local prefix.
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4.1.6 ipv6 - static routes
Configures static routes. The no form of the command deletes the configured static routes.
ipv6 route prefix prefix-len ([next-hop] {[vlan vlan-id]}) [administrative-distance] [unicast]
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no ipv6 route prefix prefix-len ([nex-hop] {[vlan vlan-id]}) [administrative-distance] [unicast]
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Syntax Description
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prefix - IPv6 prefix of the destination.
prefix-len - Destination prefix length.
next-hop - IPv6 prefix of the next hop that is used to reach the destination network.
vlan - VLAN identifier.
administrative-distance - Metric to reach the destination.
unicast - Unicast type of prefix.
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Mode
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Global Configuration
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Defaults
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administrative-distance - 1
unicast
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Example
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SEFOS(config)# ipv6 route 2111::1111 64 3111::1111
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Notes
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A route will be configured only when a proper route exists for the next-hop prefix in the route table.
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4.1.7 ipv6 - neighbor
Configures a static entry in the IPv6 neighbor cache table. The no form of the command removes the static entry from the IPv6 neighbor cache table.
ipv6 neighbor prefix {vlan vlan-id} mac-address
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no ipv6 neighbor prefix {vlan vlan-id} mac-address
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Syntax Description
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prefix - IPv6 prefix of the neighbor
vlan - VLAN identifier
mac-address - Link layer address of the interface
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Mode
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Global Configuration
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Example
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SEFOS(config)# ipv6 neighbor 3333::1111 vlan 1 00:11:22:33:44:55
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4.1.8 ipv6 default - hop limit
Defaults hop limit for IPv6 datagrams. The no form of command resets default hop limit for IPv6 datagrams.
ipv6 default-hop limit hop-limit_1-255
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no ipv6 default-hop limit
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Mode
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Global Configuration
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Example
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SEFOS(config)# ipv6 default-hop limit 100
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ipv6 nd suppress-ra
Suppresses IPv6 router advertisement. The no form of the command enables IPv6 router advertisement.
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Mode
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Interface Configuration
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Defaults
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Router advertisements are suppressed.
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Example
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SEFOS(config-if)# ipv6 nd suppress-ra
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4.1.9 ipv6 nd suppress-ra
Suppresses IPv6 router advertisement. The no form of the command enables IPv6 router advertisement.
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Mode
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Interface Configuration
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Defaults
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Router advertisements are suppressed.
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Example
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SEFOS(config-if)# ipv6 nd suppress-ra
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4.1.10 ipv6 nd managed-config flag
Sets the managed-config flag which allows the host to use DHCP for address configuration. The no form of the command resets the managed-config flag which in turn does not allow the host to use DHCP for address configuration.
ipv6 nd managed-config flag
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no ipv6 nd managed-config flag
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Mode
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Interface Configuration
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Example
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SEFOS(config-if)# ipv6 nd managed-config flag
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4.1.11 ipv6 nd other-config flag
Sets the other-config flag, which allows the host to use DHCP for other stateful configuration. The no form of the command resets the other-config flag, which in turn does not allow the host to use DHCP for other stateful configuration.
ipv6 nd other-config flag
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no ipv6 nd other-config flag
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Mode
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Interface Configuration
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Example
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SEFOS(config-if)# ipv6 nd other-config flag
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4.1.12 ipv6 hop-limit
Configures the maximum hoplimit for all IPv6 packets originating from the interface and the configured hop limit is also used in router advertisement packet current hop limit field. The no form of the command resets the hop limit to the default value for all IPv6 packets originating from the interface and also the value in the router advertisement packet current hop limit field is reset to the default value.
ipv6 hop-limito-limit_0-255
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Mode
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Interface Configuration
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Defaults
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64
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Example
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SEFOS(config-if)# ipv6 hop-limit 100
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4.1.13 ipv6 nd ra-lifetime
Sets the IPv6 router advertisement lifetime.
ipv6 nd ra-lifetime seconds_0-9000
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Mode
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Interface Configuration
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Defaults
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1800 seconds.
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Example
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SEFOS(config-if)# ipv6 nd ra-lifetime 1000
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Notes
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The ND RA lifetime value must be greater than or equal to the RA interval.
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4.1.14 ipv6 nd dad attempts
Sets the number of duplicate address detection attempts. The no form of the command resets the duplicate address detection attempts to its default value.
ipv6 nd dad attempts number-of-attempts_1-10
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Mode
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Interface Configuration
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Defaults
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1
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Example
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SEFOS(config-if)# ipv6 nd dad attempts 5
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4.1.15 ipv6 nd reachable-time
Sets the advertised reachability time. The no form of the command resets the advertised reachability time to default value.
ipv6 nd reachable-time seconds_0-3600 | msec miliseconds_0-3600000
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no ipv6 nd reachable-time
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Mode
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Interface Configuration
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Defaults
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30
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Example
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SEFOS(config-if)# ipv6 nd reachable-time 500
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- show ipv6 interface - Displays the IPv6 interfaces
- no ipv6 nd suppress-ra - Enables IPv6 router advertisement
4.1.16 ipv6 nd ns - interval
Sets the advertised retransmission time. The no form of the command resets the advertised retransmission time to default value.
ipv6 nd ns-interval retranmission-time-miliseconds_1000-3600000
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Mode
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Interface Configuration
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Example
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SEFOS(config-if)# ipv6 nd ns-interval 1000
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4.1.17 ipv6 nd ra-mtu
Sets router advertisement MTU optional value. The value ranges between 1280 and 1500. The no form of command resets the router advertisement MTU option value to the default value.
ipv6 nd ra-mtu router-advertisement-MTU
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Mode
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Interface Configuration
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Example
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SEFOS(config-if)# ipv6 nd ra-mtu 1400
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4.1.18 ipv6 nd ra-interval
Sets the IPv6 router advertisement interval. The no form of the command resets the IPv6 Router Advertisement interval to its default value.
ipv6 nd ra-interval maximum-interval-seconds_4-1800 [minimum-interval-seconds_3-1350]
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Syntax Description
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minimum-interval-seconds_3-1350 - Minimum router advertisement interval time in seconds.
maximum-interval-seconds_4-1800 - Maximum router advertisement interval time in seconds.
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Mode
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Interface Configuration
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Defaults
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600 seconds.
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Example
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SEFOS(config-if)# ipv6 nd ra-interval 200
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4.1.19 ipv6 nd prefix
Configures the prefix to be advertised in IPv6 router advertisement. The no form of the command removes the prefix from the IPv6 router advertisement.
ipv6 nd prefix {prefix-addr prefix-len | default} [{{valid-lifetime> | infinite | at var-valid-lifetime} {preferred-lifetime | infinite | at var-preferred-lifetime} | no-advertise}] [off-link] [no-autoconfig]
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no ipv6 nd prefix {prefix-addr prefix-len | default}
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Syntax Description
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prefix-addr - IPv6 prefix to be advertised.
prefix-len - Length of the configured prefix.
default - Changes the default value of the rest of the parameters.
valid-lifetime - Sets the valid lifetime value for the prefix.
infinite - Sets the infinite valid lifetime value for the prefix.
at - Sets the variable valid lifetime value for the prefix.
preferred-lifetime - Sets the preferred lifetime value for the prefix.
infinite - Sets the infinite Preferred lifetime value for the prefix.
at - Sets the variable valid lifetime value for the prefix.
no-advertise - Sets the No-Advertise flag.
off-link - Sets the off-link flag.
no-autoconfig - Sets the no-autoconfig flag.
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Mode
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Interface Configuration
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Defaults
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RA valid-lifetime - 25,9200 seconds.
RA preferred-lifetime - 60,4800 seconds.
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Example
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SEFOS(config-if)# ipv6 nd prefix 3333::1111 64 500 400
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Notes
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valid-lifetime must be greater than or equal to preferred-lifetime.
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4.1.20 ping ipv6
Sends IPv6 echo messages.
ping ipv6 prefix [data hex-str] [repeat count] [size value] [anycast] [source {vlan vlan-id | source-prefix}] [timeout seconds_1-100]
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Syntax Description
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prefix - IPv6 Destination prefix.
data - Data to be sent in ping message.
repeat - Number of ping messages.
size - Size of the ping message.
anycast - Type of prefix.
source - Source interface of the ping message can be as follows:
timeout - Duration to wait for the reply.
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Mode
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Privileged EXEC
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Defaults
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data - a5a5
repeat count - 5
size - 100 bytes.
timeout - 5 seconds.
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Example
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SEFOS# ping ipv6 3333::1111 data a6b6
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4.1.21 debug ipv6
Enables IPv6 trace. The no form of the command disables IPv6 trace.
debug ipv6 {IP6 | ICMP | UDP6 | ND | PING6}
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Syntax Description
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IP6 - IP6 trace.
ICMP - ICMP trace.
UDP6 - UDP6 trace.
ND - Neighbor discovery trace.
PING6 - PING6 trace.
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Mode
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Privileged EXEC
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Defaults
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Disabled.
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Example
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SEFOS# debug ipv6 IP6
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4.1.22 traceroute
Traces route to the destination.
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Syntax Description
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ipv6 - IPv6 destination prefix.
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Mode
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Privileged EXEC
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Example
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SEFOS# traceroute ipv6 4444::1111
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4.1.23 clear ipv6 neighbors
Removes all the entries in the IPv6 neighbor table.
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Mode
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Privileged EXEC
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Example
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SEFOS# clear ipv6 neighbors
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- show ipv6 neighbors - Displays the IPv6 Neighbor Cache Entries
4.1.24 clear ipv6 traffic
Removes all the entries in the IPv6 traffic table.
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Mode
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Privileged EXEC
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Example
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SEFOS# clear ipv6 traffic
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4.1.25 clear ipv6 route
Removes all the entries in IPv6 route table.
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Mode
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Privileged EXEC
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Example
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SEFOS# clear ipv6 route
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4.1.26 show ipv6 interface
Displays the IPv6 interfaces.
show ipv6 interface [{vlan vlan-id}[prefix]]
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Syntax Description
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vlan - VLAN identifier.
prefix - Prefix information.
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Mode
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Privileged EXEC
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Example
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SEFOS# show ipv6 interface vlan 1 prefix
Codes: A - Address , P - Prefix-Advertisement
D - Default , N - Not Advertised
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AD 2222:: 64 [LA] Valid lifetime 2592000 , Preferred lifetime 604800
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AD 2223:1:2:3:: 64 [LA] Valid lifetime 2592000 , Preferred lifetime 604800
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P 3333:: 64 [LA] Valid lifetime 700 , Preferred lifetime 600
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PD 3334:: 64 [LA] Valid lifetime 2592000 , Preferred lifetime 604800
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PN 3335:: 64 [] Valid lifetime 2592000 , Preferred lifetime 604800
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SEFOS# show ipv6 interface
vlan1 is up, line protocol is up
IPv6 is Enabled
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Link local address:
fe80::201:2ff:fe03:405
Global unicast address(es):
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Not Configured.
Joined group address(es):
ff02::1
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ff02::2
ff02::1:ff03:405
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MTU is 1500
ICMP redirects are enabled
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ND DAD is enabled, Number of DAD attempts: 1
ND router advertisement is enabled
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4.1.27 show ipv6 route
Displays the IPv6 routes.
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Mode
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Privileged EXEC
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Example
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SEFOS# show ipv6 route
IPv6 Routing Table - 4 entries
Codes : C - Connected, S - Static
O - OSPF, R - RIP, B - BGP
C 2222::/64 [1/1]
via ::, vlan1
C 2223:1:2:3::/64 [1/1]
via ::, vlan1
S 4444::/64 [1/20]
via 2222::2222, vlan1
S 4445::/64 [1/20]
via 2222::2222, vlan1
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4.1.28 show ipv6 route summary
Displays the summary of IPv6 routes.
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Mode
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Privileged EXEC
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Example
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SEFOS# show ipv6 route summary
IPv6 Routing Table Summary - 4 entries
2 Connected, 2 Static, 0 RIP, 0 BGP, 0 OSPF
Number of prefixes:
/64: 4
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4.1.29 show ipv6 neighbors
Displays the IPv6 neighbour cache entries.
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Mode
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Privileged EXEC
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Example
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SEFOS# show ipv6 neighbors
IPv6 Address Age Link-layer Addr State Interface
5555::1111 58 00:11:22:33:44:55 Static vlan1
5556::1111 58 11:22:33:44:55:66 Static vlan1
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- ipv6 - neighbor - Configures a static entry in the IPv6 neighbor cache table
4.1.30 show ipv6 traffic
Displays the IPv6 ICMP and UDP statistics.
show ipv6 traffic [interface {vlan vlan-id | tunnel tunnel-id | interface-type if-num}] [hc]
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Syntax Description
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vlan-id - Vlan identifier.
tunnel-id - Tunnel identifier.
interface-type - Interface type.
interface-id - Interface identifier.
hc - High counters (64-bit).
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Mode
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Privileged EXEC
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Example
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SEFOS# show ipv6 traffic
IPv6 Statistics
***************
0 Rcvd 0 HdrErrors 0 TooBigErrors
0 AddrErrors 0 FwdDgrams 0 UnknownProtos
0 Discards 0 Delivers 1 OutRequests
0 OutDiscards 0 OutNoRoutes 0 ReasmReqds
0 ReasmOKs 0 ReasmFails
0 FragOKs 0 FragFails 0 FragCreates
0 RcvdMCastPkt 1 SentMcastPkts 0 TruncatedPkts
0 RcvdRedirects 0 SentRedirects
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0 InOctets 0 InNoRoutes 0 OutFwdDatgrms
0 OutFrgRqds 1 OutTrnsmit 64 OutOctets
0 InMcstOctets 24 OutMcastOctets 0 InBcstPkts
0 OutBcstPkts 0 DiscntTime 1000 RefrshRate
ICMP Statistics
***************
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Received :
0 ICMPPkts 0 ICMPErrPkt 0 DestUnreach 0 TimeExcds
0 ParmProbs 0 PktTooBigMsg 0 ICMPEchoReq 0 ICMPEchoReps
0 RouterSols 0 RouterAdv 0 NeighSols 0 NeighAdv
0 Redirects 0 AdminProhib 0 ICMPBadCode
Sent :
0 ICMPMsgs 0 ICMPErrMsgs 0 DstUnReach 0 TimeExcds
0 ParmProbs 0 PktTooBigs 0 EchoReq 0 EchoReply
0 RouterSols 0 RouterAdv 1 NeighSols 0 NeighborAdv
0 RedirectMsgs 0 AdminProhibMsgs
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UDP statistics
**************
Received :
0 UDPDgrams 1 UDPNoPorts 0 UDPErrPkts
Sent :
0 UDPDgrams
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SEFOS# show ipv6 traffic interface vlan 1
IPv6 Statistics for interface vlan1
-------------------------------------
0 Rcvd 0 InOctets 0 HdrErrors
0 InNoRoutes 0 AddrErrors 0 UnknownProtos
0 TruncatedPkts 0 FwdDatagrms 0 ReasmReqds
0 ReasmOKs 0 ReasmFails 0 Discards
0 Delivers 0 OutRequests 0 OutFwdDgrms
0 OutDiscards 0 FragReqds 0 FragOKs
0 FragFails 0 FragCreates 0 OutTrnsmits
0 OutOctets 0 InMcstPkts 0 InMcstOctets
0 OutMcstPkts 0 OutMcstOctets 0 InBcstPkts
0 OutBcstPkts 0 DiscntTime 1000 RefrshRate
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SEFOS# show ipv6 traffic hc
IPv6 Statistics
***************
0 InRcvs 0 InOctets 0 InFwdDgrms
0 InDelivers 2 OutRequests 0 OutFwdDgrms
2 OutTrnsmits 128 OutOctets 0 InMcstPkts
0 InMcstOctets 2 OutMcstPkts 48 OutMcstOctets
0 InBcast 0 OutBcast
UDP statistics
**************
0 HC InDatagrams 0 HC OutDatagrams
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| Sun Ethernet Fabric Operating System CLI Enterprise Reference Manual
|
E26514-03
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