File:
[ELWIX - Embedded LightWeight unIX -] /
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config /
etc /
default /
ifstated.conf
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1.1.1.1 (vendor branch):
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Tue Jul 5 23:43:00 2011 UTC (13 years, 3 months ago) by
misho
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ELWIX project
1: # $OpenBSD: ifstated.conf,v 1.6 2005/02/07 06:08:10 david Exp $
2: # This is a sample config for a pair of firewalls with two interfaces
3: #
4: # carp0 and carp1 have ip addresses on 192.168.3.0/24 and 192.168.6.0/24
5: # respectively.
6:
7: # net.inet.carp.preempt must be enabled (set to 1) for this to work correctly.
8:
9: # Uncomment one of the following lines to force primary/backup status.
10: # init-state primary
11: # init-state backup
12:
13: carp_up = "carp0.link.up && carp1.link.up"
14: carp_down = "!carp0.link.up && !carp1.link.up"
15: carp_sync = "carp0.link.up && carp1.link.up || \
16: !carp0.link.up && !carp1.link.up"
17:
18: # The "net" addresses are other addresses which can be used to determine
19: # whether we have connectivity. Make sure the hosts are always up, or
20: # test multiple ip's, 'or'-ing the tests.
21: net = '( "ping -q -c 1 -w 1 192.168.6.8 > /dev/null" every 10 && \
22: "ping -q -c 1 -w 1 192.168.3.8 > /dev/null" every 10)'
23:
24: # The peer addresses below are the real ip addresses of the OTHER firewall
25: peer = '( "ping -q -c 1 -w 1 192.168.6.7 > /dev/null" every 10 && \
26: "ping -q -c 1 -w 1 192.168.3.7 > /dev/null" every 10)'
27:
28: state auto {
29: if $carp_up
30: set-state primary
31: if $carp_down
32: set-state backup
33: }
34:
35: state primary {
36: init {
37: run "ifconfig carp0 advskew 10"
38: run "ifconfig carp1 advskew 10"
39: }
40: if ! $net
41: set-state demoted
42: }
43:
44: state demoted {
45: init {
46: run "ifconfig carp0 advskew 254"
47: run "ifconfig carp1 advskew 254"
48: }
49: if $net
50: set-state primary
51: }
52:
53: state promoted {
54: init {
55: run "ifconfig carp0 advskew 0"
56: run "ifconfig carp1 advskew 0"
57: }
58: if $peer || ! $net
59: set-state backup
60: }
61:
62: state backup {
63: init {
64: run "ifconfig carp0 advskew 100"
65: run "ifconfig carp1 advskew 100"
66: }
67: # The "sleep 5" below is a hack to dampen the $carp_sync when we come
68: # out of promoted state. Thinking about the correct fix...
69: if ! $carp_sync && $net && "sleep 5" every 10
70: if ! $carp_sync && $net
71: set-state promoted
72: }
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