aboutsummaryrefslogtreecommitdiff
path: root/relay/dhcrelay.8
diff options
context:
space:
mode:
Diffstat (limited to 'relay/dhcrelay.8')
-rw-r--r--relay/dhcrelay.818
1 files changed, 14 insertions, 4 deletions
diff --git a/relay/dhcrelay.8 b/relay/dhcrelay.8
index 06408a3..c4115cb 100644
--- a/relay/dhcrelay.8
+++ b/relay/dhcrelay.8
@@ -86,7 +86,7 @@ dhcrelay - Dynamic Host Configuration Protocol Relay Agent
.PP
.B dhcrelay -6
[
-.B -dqI
+.B -dqIL
]
[
.B -p
@@ -225,6 +225,15 @@ in use, to disambiguate between them. The \fB-I\fR option causes
dhcrelay to send the option even if there is only one downstream
interface.
.TP
+-L
+Enable Lightweight DHCPv6 Relay Agent (layer 2) operation according to
+RFC6221. This forces the \fB-I\fR option on, and uses the unspecified
+address (::) as link address in all relayed packets, enabling operation
+on a layer 2 brigde with no global address at all. Note that this
+option makes both the \fB-I\fR option and the \fIaddress%\fR parameter
+of the \fB-l\fR option redundant. Any configured \fIaddress%\fR will
+be silently ignored.
+.TP
-e \fIenterprisenumber\fR
Specifies the IANA allocated enterprise number to be used in REMOTE-ID
options. Required for adding REMOTE-ID
@@ -236,9 +245,10 @@ relay agents. At least one \fB-l\fR option must be included in the command
line when running in DHCPv6 mode. The interface name \fIifname\fR is a
mandatory parameter. The link address can be specified by \fIaddress%\fR;
if it isn't, dhcrelay will use the first non-link-local address configured
-on the interface. The optional \fI#index\fR parameter specifies the
-interface index. The optional \fI!remoteid\fR parameter specifies the
-ascii remote id value (requires the \fB-e\fR option as well).
+on the interface unless configured for LDRA with the \fB-L\fR option.
+The optional \fI#index\fR parameter specifies the interface index. The
+optional \fI!remoteid\fR parameter specifies the ascii remote id value
+(requires the \fB-e\fR option as well).
.TP
-u [\fIaddress%\fR]\fIifname\fR
Specifies the ``upper'' network interface for DHCPv6 relay mode: the