command is issued to keep the server informed. Further configuration is
performed using the new interface name.
.hP 2.
-The point-to-point interface is configured. If
+Configure the interface addresses. If
.I laddr
-and
+is set, it should be a space-separated list of IPv4 and IPv6 addresses
+with optional prefix lengths; there may be any number of either. If
.I raddr
-are set, then the interface is configured to be a point-to-point link
-from
-.I laddr
-to
-.IR raddr .
-Both are expected to be network addresses in dotted-quad form. The
-interface MTU is configured based on the path MTU to the peer's external
-address and the cryptographic algorithms in use by the
-.BR tripe (8)
-server; this can be overridden by setting the
-.I mtu
-key.
+is set, it should be a list IPv4 and/or an IPv6 addresses, with optional
+prefix lengths, separated by space: these are the addresses to
+configure as the remote end point of the point-to-point link. (Further
+remote addresses can be configured as host routes: see below.) IPv4
+addresses are expected to be in dotted-quad form; IPv6 addresses should
+be in RFC4291 hex-and-colons form.
.hP 3.
-Establish routes. If the interface was configured, and
+Establish routes. If addresses were configured, and
.I nets
is set, then
.I nets
is split into space-separated networks. For each network, of the form
.IB address / mask \fR,
a route is configured to the given network, via the remote address of
-the link, over the tunnel interface.
+the link, over the tunnel interface. The
+.IR address es
+may be IPv4 or IPv6 addresses. If the interface has only an IPv4
+address then IPv6 routes will be ignored, and
+.IR "vice versa" .
.hP 4.
+Configure the interface MTU and bring it up. The
+interface MTU is configured based on the path MTU to the peer's external
+address and the cryptographic algorithms in use by the
+.BR tripe (8)
+server; this can be overridden by setting the
+.I mtu
+key.
+.hP 5.
Invoke user hook. If
.I ifupextra
is set, it is interpreted as a Bourne shell command and evaluated.
-.hP 5.
+.hP 6.
Notify services. A notification
.RS
.IP