Note that there is a extra "static DHCP" case for v6 not found in v4. If the RA has the "Managed" flag off but the "Other config" flag on, and there is an advertised prefix flagged for autoconfiguration, the expected client behavior is to do SLAAC for the address but do non-address DHCP for other network parameters such as DNS, syslog, NTP servers and the like.
DHCP functions the same, but the specifics are adapted for IPv6 and to disambiguate, it is known as DHCPv6; there is a separate RFC: RFC-3315. IPv6 Autoconfiguration During the design of IPv6, then codenamed ‘IPng’, the design of “autoconfiguration” for IP was refactored to support a more automated method by which hosts could join an The old server is running isc-dhcp-server 4.2.2, while the new server is running isc-dhcp-server 4.3.5. I copied the configuration file, but not the lease database from old server. Then I stopped the old ipv6 (and ipv4) dhcp servers and started the new ones. The ipv6 dhcp server starts, and is listening, but it is not handing out addresses. Manual IP allocation is the way that network engineers manually assign IPv6 addresses. Dynamic IP Allocation is the way, that different mechanims are used for automatic IP allocation. Dynamic IP Allocation is mainly divided into two according to their operational style. DHCP for IPv4 and IPv6 both use these concepts. Basically, a scope is a collection of configuration information which will be used to provide configuration settings to devices on the network. A lease is a designation of how long the device on the network can use the provided information before having to request it again. Nov 05, 2019 · Also, add an extra command ipv6 nd managed -config -flag to set a flag in router advertisement that tells the clients (PCs) that they should use DHCP to obtain stateful IPv6 addresses. Router(config)#int fa 0/0 Router(config-if)#ipv6 dhcp server STATEFUL_POOL Router(config-if)#ipv6 nd managed-config-flag. Now verify stateful DHCPv6 configuration.
Package: dhcp,ipv6. Starting from v5.9 DHCP-PD server is moved to /ipv6 sub menu Single DUID is used for client and server identification, only IAID will vary between cients corresponding to their assigned interface.
Nov 05, 2019 · Also, add an extra command ipv6 nd managed -config -flag to set a flag in router advertisement that tells the clients (PCs) that they should use DHCP to obtain stateful IPv6 addresses. Router(config)#int fa 0/0 Router(config-if)#ipv6 dhcp server STATEFUL_POOL Router(config-if)#ipv6 nd managed-config-flag. Now verify stateful DHCPv6 configuration.
My network is running IPv6 with SLAAC and the JunOS version on my firewall does not support RDNSS, so I needed a full-featured DHCP server to hand out DNS information.. I already have a Raspberry Pi running isc-dhcp-server for my IPv4 network so I thought it would be simple to add IPv6 support.
ISC DHCP ISC DHCP offers a complete open source solution for implementing DHCP servers, relay agents, and clients. ISC DHCP supports both IPv4 and IPv6, and is suitable for use in high-volume and high-reliability applications. DHCP is available for free download under the terms of the MPL 2.0 license. Note that currently, the ISC DHCP server can only serve IPv4 or IPv6, means you have to start the daemon twice (for IPv6 with option ”-6”) to support both protocols. Simple configuration Create a dedicated configuration file /etc/dhcp/dhcpd6.conf for the IPv6 part of the dhcpd. Sep 15, 2014 · DHCPv6 uses a DHCP Unique Identifier (DUID) where DHCP for IPv4 uses the MAC address of the client. DHCPv6 does not provide the IPv6 address of the default gateway to the client, this is provided by the ICMPv6 RA message. DHCP for IPv4 provides the default gateway IP address to the client. RFC 8415 DHCP for IPv6 November 2018 While assumes that the DHCP client is a router (hence the use of "requesting router") and that the DHCP server is a router (hence the use of "delegating router"), DHCP prefix delegation itself does not require that the client forward IP packets not addressed to itself and thus does not require that the In stateless configuration mode the dhcp server interacts together with an other IPv6 address assignment mechanism (e.g. a radvd router). The client first gets its prefix (and generates his own IPv6 address - SLAAC) and receives some more informations (like DNS server IPs, NTP server) as second part from your DHCPv6 server. ISC DHCP is an implementation that supports both DHCPv4 and DHCPv6. It also offers a way to define custom options that are not supported directly. The following sections explain how to configure the existing ISC DHCP software to provision routing information to clients. MX Series,EX Series. DHCPv6 Local Server Overview, Configuring DHCPv6 Rapid Commit (MX Series, EX Series), Preventing Binding of Clients That Do Not Support Reconfigure Messages, Configuring the DUID Type Supported by DHCPv6 Servers, Example: Extended DHCPv6 Local Server Configuration