Chapter 6 WAN
LTE3311 Series User’s Guide
56
IPv6 Prefix and Prefix Length
Similar to an IPv4 subnet mask, IPv6 uses an address prefix to represent the network address. An
IPv6 prefix length specifies how many most significant bits (start from the left) in the address
compose the network address. The prefix length is written as “/x” where x is a number. For
example,
2001:db8:1a2b:15::1a2f:0/32
means that the first 32 bits (2001:db8) is the subnet prefix.
IPv6 Subnet Masking
Both an IPv6 address and IPv6 subnet mask compose of 128-bit binary digits, which are divided
into eight 16-bit blocks and written in hexadecimal notation. Hexadecimal uses four bits for each
character (1 ~ 10, A ~ F). Each block’s 16 bits are then represented by four hexadecimal
characters. For example, FFFF:FFFF:FFFF:FFFF:FC00:0000:0000:0000.
IPv6 Rapid Deployment
Use IPv6 Rapid Deployment (6rd) when the local network uses IPv6 and the ISP has an IPv4
network. When the LTE3311 has an IPv4 WAN address, you can enable 6rd to encapsulate IPv6
packets in IPv4 packets to cross the ISP’s IPv4 network.
The LTE3311 generates a global IPv6 prefix from its IPv4 WAN address and tunnels IPv6 traffic to
the ISP’s Border Relay router (BR in the figure) to connect to the native IPv6 Internet. The local
network can also use IPv4 services. The LTE3311 uses it’s configured IPv4 WAN IP to route IPv4
traffic to the IPv4 Internet.
Figure 28 IPv6 Rapid Deployment
6.4 Management WAN
The summary table shows you the WAN connection configured on the LTE3311. Click Network >
WAN > Management WAN from the Configuration menu.
ISP (IPv4)
IPv6 Internet
IPv4
IPv6
BR
IPv6 in IPv4
IPv4 Internet
IPv4
+
LAN
- IPv6
- IPv4
WAN
- IPv4
- IPv6 in IPv4
To Next Page
Loading...
