jow 6ca07c5c90 isc-dhcp: dhcrelay: Add RFC3527 link selection sub-option
RFC3527 link selection sub-option is used to select the "uplink" interface of
dhcrelay in cases where the DHCP server does not know how to reach the dhcrelay
based on the DHCP range. This can happen in weird network configurations like
Mesh networks.

Signed-off-by: Bruno Randolf <br1@einfach.org>

git-svn-id: svn://svn.openwrt.org/openwrt/packages@38447 3c298f89-4303-0410-b956-a3cf2f4a3e73
2013-10-18 11:40:00 +00:00

28 lines
743 B
Plaintext

config dhcrelay ipv4
option 'enabled' '0'
# IP address of the server
option 'dhcpserver' '192.0.2.10'
# network interfaces to listen on (e.g. lan or wan)
option 'interfaces' ''
# What to do about packets that already have a relay option:
# 'append': Forward and append our own relay option
# 'replace': Forward, but replace theirs with ours (default)
# 'forward': Forward without changes
# 'discard': Don't forward
option 'relay_mode' ''
# enable RFC3527 link selection sub-option and use the IP address of
# the specified network interface as "uplink" IP address (e.g. wan)
option 'link_selection' ''
config dhcrelay ipv6
# option dhcpserver '2001:db8:1::1'
option upper 'eth1'
list lower 'eth0.2'
list lower 'eth0.3'