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Prevent DHCPACK for DHCPINFORM in the DHCP server 

The orignal "dhcp-range=xxx,static" would only prohibit DHCPREQUEST from unknown
hosts, but not DHCPINFORM which can request routing information. This caused
trouble for some bridged networks outside CloudStack.

This patch would fix the issue, prevent dnsmasq from acking any unknown request.

Signed-off-by: Sheng Yang <sheng.yang@citrix.com>
This commit is contained in:
Joris van Lieshout 2014-02-20 14:54:04 +01:00 committed by Sheng Yang
parent b0c6d47347
commit 986813d973
1 changed files with 3 additions and 1 deletions
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4
systemvm/patches/debian/config/etc/dnsmasq.conf.tmpl
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@ -277,7 +277,9 @@ dhcp-hostsfile=/etc/dhcphosts.txt
# or /etc/ethers. Equivalent to ISC "deny unknown-clients".
# This relies on the special "known" tag which is set when
# a host is matched.
#dhcp-ignore=tag:!known
#
# When using bridged networks in ACS this prevents ack to DHCPINFORM etc. request
dhcp-ignore=tag:!known
# Send extra options which are tagged as "red" to any machine whose
# DHCP vendorclass string includes the substring "Linux"