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# $OpenBSD: faq-example2,v 1.2 2003/08/06 16:04:45 henning Exp $
#
# Small, Home Network
# http://www.openbsd.org/faq/pf/queueing.html#example1
#
# enable queueing on the external interface to control traffic going to
# the Internet. use the priq scheduler to control only priorities. set
# the bandwidth to 610Kbps to get the best performance out of the TCP
# ACK queue.
altq on fxp0 priq bandwidth 610Kb queue { std_out, ssh_im_out, dns_out, \
tcp_ack_out }
# define the parameters for the child queues.
# std_out - the standard queue. any filter rule below that does not
# explicitly specify a queue will have its traffic added
# to this queue.
# ssh_im_out - interactive SSH and various instant message traffic.
# dns_out - DNS queries.
# tcp_ack_out - TCP ACK packets with no data payload.
queue std_out priq(default)
queue ssh_im_out priority 4 priq(red)
queue dns_out priority 5
queue tcp_ack_out priority 6
# enable queueing on the internal interface to control traffic coming in
# from the Internet. use the cbq scheduler to control bandwidth. max
# bandwidth is 2Mbps.
altq on dc0 cbq bandwidth 2Mb queue { std_in, ssh_im_in, dns_in, bob_in }
# define the parameters for the child queues.
# std_in - the standard queue. any filter rule below that does not
# explicitly specify a queue will have its traffic added
# to this queue.
# ssh_im_in - interactive SSH and various instant message traffic.
# dns_in - DNS replies.
# bob_in - bandwidth reserved for Bob's workstation. allow him to
# borrow.
queue std_in cbq(default)
queue ssh_im_in priority 4
queue dns_in priority 5
queue bob_in bandwidth 80Kb cbq(borrow)
# ... in the filtering section of pf.conf ...
alice = "192.168.0.2"
bob = "192.168.0.3"
charlie = "192.168.0.4"
local_net = "192.168.0.0/24"
ssh_ports = "{ 22 2022 }"
im_ports = "{ 1863 5190 5222 }"
# filter rules for fxp0 inbound
block in on fxp0 all
# filter rules for fxp0 outbound
block out on fxp0 all
pass out on fxp0 inet proto tcp from (fxp0) to any flags S/SA \
keep state queue(std_out, tcp_ack_out)
pass out on fxp0 inet proto { udp icmp } from (fxp0) to any keep state
pass out on fxp0 inet proto { tcp udp } from (fxp0) to any port domain \
keep state queue dns_out
pass out on fxp0 inet proto tcp from (fxp0) to any port $ssh_ports \
flags S/SA keep state queue(std_out, ssh_im_out)
pass out on fxp0 inet proto tcp from (fxp0) to any port $im_ports \
flags S/SA keep state queue(ssh_im_out, tcp_ack_out)
# filter rules for dc0 inbound
block in on dc0 all
pass in on dc0 from $local_net
# filter rules for dc0 outbound
block out on dc0 all
pass out on dc0 from any to $local_net
pass out on dc0 proto { tcp udp } from any port domain to $local_net \
queue dns_in
pass out on dc0 proto tcp from any port $ssh_ports to $local_net \
queue(std_in, ssh_im_in)
pass out on dc0 proto tcp from any port $im_ports to $local_net \
queue ssh_im_in
pass out on dc0 from any to $bob queue bob_in
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