Brocade FastIron Ethernet Switch Layer 3 Routing Configuration Guide - Manual (Page 214)

Syntax: [no] ipv6 dhcp-relay maximum-delegated-prefixes value
The value parameter is used to limit the maximum number of prefixes that can be delegated. The
range is from 0 to 512. The default value is 100. The sum of all the delegated prefixes that can be
learned at the interface level is limited by the system max.
Use the no ipv6 dhcp-relay maximum-delegated-prefixes command to set the parameter to the
default value of the specified platform.
Assigning the administrative distance to DHCPv6 static routes
To assign the administrative distance to DHCPv6 static routes installed in IPv6 route table for the
delegated prefixes on the interface, use the ipv6 dhcp-relay distance command at the interface level.
The administrative distance value has to be set so that it does not replace the same IPv6 static route
configured by the user.
device(config-if-eth2/1)# ipv6 dhcp-relay distance 25
Syntax: [no] ipv6 dhcp-relay distance value
The value parameter is used to assign the administrative distance to DHCPv6 static routes on the
interface. The range is from 1 to 255. The default value is 10. If the value is set to 255, then the
delegated prefixes for this interface will not be installed in the IPv6 static route table.
Use the no ipv6 dhcp-relay distance command to set the parameter to a default value of 10.
Displaying the DHCPv6 Relay Agent Prefix Delegation Notification
information
Enter the show ipv6 dhcp-relay delegated-prefixes command to display information about the
delegated prefixes.
device#show ipv6 dhcp-relay delegated-prefixes vrf red
IPv6 DHCP Relay Delegated Prefixes Table - 2 entries VRF: red
IPv6 Prefix Client Interface ExpireTime
2001:db8:aaa::/48 2001:db8:103:10:1::8 eth 1/3 3h24m10s
2001:db8:bbb::/48 2001:db8:104:10:1::6 eth 1/4 0m28s
device#
Syntax: show ipv6 dhcp-relay delegated-prefixes vrf vrf-name } { X:X::X:X/M | client-id client
ipv6address | interface interface-id }
The vrfvrf-name parameter is used to display the DHCPv6 delegated prefixes for a specific VRF.
The X:X::X:X/M parameter is used to display the specified delegated prefix information.
The client-idclient ipv6 address parameter is used to display the delegated prefix for the specific
client.
The interfaceinterface-id parameter is used to display delegated prefixes for the specified outgoing
interface.
Table 44 describes the fields from the output of show ipv6 dhcp-relay delegated-prefixes command.
Output from the show ipv6 dhcp-relay delegated-prefixes command TABLE 44
Field Description
IPv6 Prefix The IPv6 prefix delegated to the client.
Assigning the administrative distance to DHCPv6 static routes
214 FastIron Ethernet Switch Layer 3 Routing Configuration Guide
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