NETGEAR FVS318N manual DHCPv6 and Radvd interaction in the DMZ

ProSafe Wireless-N 8-Port Gigabit VPN Firewall FVS318N

Hosts and routers in the LAN use NDP to determine the link-layer addresses and related information of neighbors in the LAN that can forward packets on their behalf. The wireless VPN firewall periodically distributes router advertisements (RAs) throughout the DMZ to provide such information to the hosts and routers in the DMZ. RAs include IPv6 addresses, types of prefixes, prefix addresses, prefix lifetimes, the maximum transmission unit (MTU), and so on. In addition to configuring the RADVD, you also need to configure the prefixes that are advertised in the DMZ RAs.

The following table provides an overview of how information is obtained in the DMZ when you have configured a stateless DHCPv6 server and the RADVD:

Table 21. DHCPv6 and RADVD interaction in the DMZ

Flags in the RADVD	DHCPv6 Server Provides	RADVD Provides
Managed RA flag is set	• IP address assignment	• IP address assignment
	• DNS server and other configuration information	• Prefix
		• Prefix length
		• Gateway address
Other RA flag is set	DNS server and other configuration information	• IP address assignment
		• Prefix
		• Prefix length
		• Gateway address

When the Managed flag is set in the RADVD, the DHCPv6 server can assign IP addresses, and the RADVD also assigns IP addresses in the sense that it provides information that allows IPv6 clients to configure their own IPv6 address.

When the Other flag is set, the DHCPv6 server does not assign IP addresses but provides DNS server and other configuration information only.

To configure the Router Advertisement Daemon for the DMZ:

1.Select Network Configuration > DMZ Setup.

2.In the upper right of the screen, select the IPv6 radio button. The DMZ Setup screen displays the IPv6 settings (see Figure 45 on page 90).

3.Click the RADVD option arrow to the right of the DMZ Setup tab. The RADVD screen for the DMZ displays. (The following figure contains some examples.)

LAN Configuration

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