Date: Wed, 2 Mar 2005 00:44:13 +0100 From: Hexren <me@hexren.net> To: freebsd-pf@freebsd.org Subject: Re: Whats wrong with this ruleset? Message-ID: <143533196.20050302004413@hexren.net> In-Reply-To: <4224F74B.1030502@trini0.org> References: <4224F74B.1030502@trini0.org>
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GS> For some reason, port 53 is blocked going out of the external interface ->
GS> 000000 rule 0/0(match): block out on ed0: IP xx.xxx.xxx.xx.53 >
GS> xx.xx.xx.xxx.4973
GS> Im still new to pf, but shouldn't the last two lines allow anything
GS> going out
GS> to pass??
GS> Any ideas on how to fix?
GS> Thanks for your time
GS> ----
GS> # macros
GS> int_if = "fxp0"
GS> ext_if = "ed0"
GS> tcp_services = "{ 22, 113 }"
GS> icmp_types = "echoreq"
GS> priv_nets = "{ 127.0.0.0/8, 192.168.0.0/16, 172.16.0.0/12, 10.0.0.0/8 }"
GS> hivemind = "192.168.0.2"
GS> www = "10.0.0.1"
GS> isp_dhcp = "xx.xx.xx.xx"
GS> # options
GS> set block-policy return
GS> set loginterface $ext_if
GS> # scrub
GS> scrub in all
GS> # nat/rdr
GS> nat on $ext_if from $int_if:network to any -> ($ext_if)
GS> rdr on $ext_if proto tcp from any to any port 22 -> $hivemind
GS> rdr on $ext_if proto tcp from any to any port 25 -> $hivemind
GS> rdr on $ext_if proto tcp from any to any port 80 -> $www
GS> rdr on $ext_if proto tcp from any to any port 110 -> $hivemind
GS> # filter rules
GS> block log all
GS> pass quick on lo0 all
GS> block drop in quick on $ext_if from $priv_nets to any
GS> block drop out quick on $ext_if from any to $priv_nets
GS> pass in on $ext_if inet proto tcp from any to ($ext_if) port
GS> $tcp_services flags S/SA keep state
GS> pass in on $ext_if proto {udp} from $isp_dhcp to any port 68
GS> pass in on $ext_if proto {tcp} from any to any port 22
GS> pass in on $ext_if proto {tcp, udp} from any to any port 53
GS> pass in on $ext_if proto {tcp} from any to any port 25
GS> pass in on $ext_if proto {tcp} from any to any port 110
GS> pass in on $ext_if proto tcp from any to $www port 80 flags S/SA
GS> synproxy state
GS> pass in inet proto icmp all icmp-type $icmp_types keep state
GS> pass in on $int_if from $int_if:network to any keep state
GS> pass out on $int_if from any to $int_if:network keep state
GS> pass out on $ext_if proto tcp all modulate state flags S/SA
GS> pass out on $ext_if proto {udp, icmp} all keep state
GS> _______________________________________________
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---------------------------------------------
I am not that genius in pf, but try if it helps if you comment these
two rules out.
block drop in quick on $ext_if from $priv_nets to any
block drop out quick on $ext_if from any to $priv_nets
Hexren
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