FreeBSD双线负载均衡NAT服务器配置方法

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FreeBSD双线负载均衡NAT服务器配置方法

来源: 作者: 时间:2015-11-30 10:41 【

# vi /etc/rc.conf================+==============+=================defaultrouter=221.33.88.254ifconfig_fxp0=inet 192.168.0.1 netmask 255.255.255.0ifconfig_rl0=inet 221.33.88.2 netmask 255.255.255.0ifc
# vi /etc/rc.conf ================+==============+================= defaultrouter="221.33.88.254" ifconfig_fxp0="inet 192.168.0.1 netmask 255.255.255.0" ifconfig_rl0="inet 221.33.88.2 netmask 255.255.255.0" ifc
# vi /etc/rc.conf
================+==============+=================
defaultrouter="221.33.88.254"
ifconfig_fxp0="inet 192.168.0.1 netmask 255.255.255.0"
ifconfig_rl0="inet 221.33.88.2 netmask 255.255.255.0"
ifconfig_rl1="inet 202.0.57.1 netmask 255.255.255.0"
pf_enable="YES"
================+==============+================= # vi /etc/pf.conf
================+==============+=================
##anchors
lan_net = "192.168.0.0/24"
int_if  = "fxp0"
ext_if1 = "rl0"
ext_if2 = "rl1"
ext_gw1 = "221.33.88.254"
ext_gw2 = "61.0.57.254" ##nat outgoing connections on each internet interface
nat on $ext_if1 from $lan_net to any -> ($ext_if1)
nat on $ext_if2 from $lan_net to any -> ($ext_if2) ##default deny
block in  from any to any
block out from any to any ##pass all outgoing packets on internal interface
pass out on $int_if from any to $lan_net
##pass in quick any packets destined for the gateway itself
pass in quick on $int_if from $lan_net to $int_if
##load balance outgoing tcp traffic from internal network.
pass in on $int_if route-to \
{ ($ext_if1 $ext_gw1), ($ext_if2 $ext_gw2) } round-robin \
proto tcp from $lan_net to any flags S/SA modulate state
##load balance outgoing udp and icmp traffic from internal network
pass in on $int_if route-to \
{ ($ext_if1 $ext_gw1), ($ext_if2 $ext_gw2) } round-robin \
proto { udp, icmp } from $lan_net to any keep state ##general "pass out" rules for external interfaces
pass out on $ext_if1 proto tcp from any to any flags S/SA modulate state
pass out on $ext_if1 proto { udp, icmp } from any to any keep state
pass out on $ext_if2 proto tcp from any to any flags S/SA modulate state
pass out on $ext_if2 proto { udp, icmp } from any to any keep state ##route packets from any IPs on $ext_if1 to $ext_gw1 and the same for
##$ext_if2 and $ext_gw2
pass out on $ext_if1 route-to ($ext_if2 $ext_gw2) from $ext_if2 to any
pass out on $ext_if2 route-to ($ext_if1 $ext_gw1) from $ext_if1 to any
================+==============+================= # vi /etc/sysctl.conf
net.inet.ip.forwarding=1
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