User guide

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Appendix G
Notes on IPv6
Because IPv6 uses the colon (:) symbol in the address, there are special considerations needed
when using the IPv6 address in a web browser because the colon (:) is also used to denote a
port number (i.e. 192.168.12.21:24). Because accessing the WebMux’s web management
requires access to port 24, you cannot simply put the IPv6 address in the address bar of the
browser like you would for an IPv4 address. You must enclose the address in brackets ([]).
For example, if the IPv6 address of the WebMux is fec0::c0a8:c15, then you would enter
http://[fec0::c0a8:c15]:24/ to get to the web management.
There are also IPv6 versions of some basic networking tools such as ping6, traceroute6, and
tcpdump with the IPv6 flag, ip –f inet6, route –inet6, etc. Please be sure that network
software/client is indeed IPv6 capable or is the correct IPv6 version to use before assuming
that your network is not working.
Also, when adding an IPv6 address to your server’s NIC (network interface card), your
server’s OS might not automatically add a default gateway in its routing table for the IPv6
address. Please double check the routing tables and make sure the proper entries are there. If
your servers are not accessible from the outside but are accessible within the subnet, you
might want to check and make sure that the default gateway was set up correctly.
From firmware version 9.0.0, WebMux IPV6 supports all modes operation. It can operate in
two arms NAT mode, Transparent mode, as well as one arm Single Network mode and OOP
(Out-of-Path) mode. It does allow SNAT, L4 and L7 operations, as well as SSL termination.
It also allows incoming IPV6 traffic being load balanced to internal IPV4 based servers.
However, for traffic initiated behind the WebMux (not load balanced), it does not translate
IPV4 to IPv6.