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authorJason McIntyre <jmc@cvs.openbsd.org>2006-06-15 08:55:40 +0000
committerJason McIntyre <jmc@cvs.openbsd.org>2006-06-15 08:55:40 +0000
commit0178065b566194c67b19b4b3500bfd0ea1be975c (patch)
tree2ad4921e003a521978389dd05c8cb030bc670da5 /share/man
parenta2a2ebc9164ca0c67f6a7fcca324af90bbbe02c2 (diff)
- misplaced .El
- some wording fixes
Diffstat (limited to 'share/man')
-rw-r--r--share/man/man4/carp.418
1 files changed, 9 insertions, 9 deletions
diff --git a/share/man/man4/carp.4 b/share/man/man4/carp.4
index af2ba573d18..489ead7a075 100644
--- a/share/man/man4/carp.4
+++ b/share/man/man4/carp.4
@@ -1,4 +1,4 @@
-.\" $OpenBSD: carp.4,v 1.22 2006/06/15 07:58:45 mcbride Exp $
+.\" $OpenBSD: carp.4,v 1.23 2006/06/15 08:55:39 jmc Exp $
.\"
.\" Copyright (c) 2003, Ryan McBride. All rights reserved.
.\"
@@ -117,6 +117,7 @@ Disabled by default.
.It net.inet.carp.arpbalance
Balance local traffic using ARP.
Disabled by default.
+.El
.Sh ARP LEVEL LOAD BALANCING
.Nm
has limited abilities for load balancing the incoming connections
@@ -136,23 +137,22 @@ See the
section for a practical example of load balancing.
.Pp
The ARP load balancing has some limitations.
-First, ARP balancing only works on the local network segment.
+Firstly, ARP balancing only works on the local network segment.
It cannot balance traffic that crosses a router, because the
router itself will always be balanced to the same virtual host.
-Second, ARP load balancing can lead to asymmetric routing
-of incoming and outgoing traffic, and thus combining it with
+Secondly, ARP load balancing can lead to asymmetric routing
+of incoming and outgoing traffic, thus combining it with
.Xr pfsync 4
requires special care, because this can create a race condition between
balanced routers and the host they are serving.
-ARP balancing safely can be used with pfsync if the
-.Xr pf
-ruleset is translates the source address to an unshared address on the
-outgoing interface using a nat rule.
+ARP balancing can be safely used with pfsync if the
+.Xr pf 4
+ruleset translates the source address to an unshared address on the
+outgoing interface using a NAT rule.
This requires multiple CARP groups with
.Em different
IP addresses on the outgoing interface, configured so that each host is the
master of one group.
-.El
.Sh EXAMPLES
For firewalls and routers with multiple interfaces, it is desirable to
failover all of the