Hello all,

Another in my mysterious problems list...

pf.conf is set up to allow icmp anywhere.  And dhcpd offers a
plausible IP address and gateway that the client (tested under
both Linux and Windows) accepts.

The client doesn't get the DNS resolver information and can't
ping anywhere, even by raw IP address, even to the router.  The
router also fails to ping the client.

This is FreeBSD stable, updated about a week ago.  dhcpd.conf
and pf.conf files are attached.

Any ideas?  Thanks!
-- 
David Benfell, LCP
[EMAIL PROTECTED]
---
Resume available at http://www.parts-unknown.org/
NOTE: I sign all messages with GnuPG (0DD1D1E3).
#       $OpenBSD: pf.conf,v 1.19 2003/03/24 01:47:28 ian Exp $
#
# See pf.conf(5) and /usr/share/pf for syntax and examples.
# Required order: options, normalization, queueing, translation, filtering.
# Macros and tables may be defined and used anywhere.
# Note that translation rules are first match while filter rules are last match.

# Macros: define common values, so they can be referenced and changed easily.
#ext_if="ext0"  # replace with actual external interface name i.e., dc0
ext_if="xl0"
#int_if="int0"  # replace with actual internal interface name i.e., dc1
int_if="dc0"
dmz_if="sf3"
voip_cfg_if="sf1"
pub_if="sf0"
local_if="lo0"
#lupin_if="sf1"
#internal_net="10.1.1.1/8"
internal_net="192.168.18.1/24"
external_addr="66.93.170.242"
internal_addr="192.168.18.1"
routable_subnet="66.93.170.241/28"
dmz_net="192.168.19.0/24"
dmz_addr="192.168.19.242"
voip_cfg="192.168.102.1"
voip_local="192.168.102.2"
mta_ad = "192.168.19.242"
mta_pt = "25"
dhcp_net="192.168.20.0/24"
#lupin_net="192.168.100.0/24"
public_admin_net="192.168.17.0/24"
starshine="216.240.40.160/27"
#allowed_nets="{ $starshine, $dmz_net, $internal_net }"
trusted_external="{ 12.22.55.0/24 64.0.0.0/4 134.154.0.0/16 216.240.40.161/27 }"
#                   Doubletree    Local      CSU Hayward    starshine.org       
                           
earth_ext="66.93.170.243"
earth_dmz="192.168.19.243"
earth_int="192.168.18.43"
dnscache="192.168.19.4"
kindling_ext="66.93.170.244"
kindling_int="192.168.19.244"
home_ext="66.93.170.245"
home_int="192.168.18.44"
raven_ext="66.93.170.246"
raven_int="192.168.18.45"
lair_ext="66.93.170.247"
lair_int="192.168.18.46"
thunder_ext="66.93.170.248"
thunder_int="192.168.18.47"
voip_ext="66.93.170.254"
#lupin_ext="66.93.170.254"
non_routable="{ 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, 169.254.0.0/16 }"
macintoshes="{ $lair_ext, $lair_int, $thunder_ext, $thunder_int }"
linux_pcs="{ $dnscache, $kindling_ext, $kindling_int, $home_ext, $home_int, 
$raven_ext, $raven_int }"
auth_local="{ $lair_ext, $lair_int, $thunder_ext, $thunder_int \
        $earth_ext, $earth_dmz, $dnscache, $kindling_ext, $kindling_int, 
$home_ext, $home_int, $raven_ext, $raven_int }"
#lupin_router="192.168.100.1"
#lupin_net="192.168.100.0/24"
dmz_services="port { 4, http, ftp-data, ftp, domain, ntp }"
tcp_udp="proto { tcp, udp }"
in_out="{ in, out }"

# Tables: similar to macros, but more flexible for many addresses.
#table <foo> { 10.0.0.0/8, !10.1.0.0/16, 192.168.0.0/24, 192.168.1.18 }

# Options: tune the behavior of pf, default values are given.
#set timeout { interval 30, frag 10 }
#set timeout { tcp.first 120, tcp.opening 30, tcp.established 86400 }
#set timeout { tcp.closing 900, tcp.finwait 45, tcp.closed 90 }
#set timeout { udp.first 60, udp.single 30, udp.multiple 60 }
#set timeout { icmp.first 20, icmp.error 10 }
#set timeout { other.first 60, other.single 30, other.multiple 60 }
#set limit { states 10000, frags 5000 }
#set loginterface none
#set optimization normal
set block-policy drop
#set block-policy return
#set require-order yes

# Normalization: reassemble fragments and resolve or reduce traffic ambiguities.
#scrub in from any to any
scrub in all

# Queueing: rule-based bandwidth control.
#altq on $ext_if bandwidth 2Mb cbq queue { dflt, developers, marketing }
#altq on $ext_if bandwidth 1.5Mb cbq queue { dflt, tor }
#queue dflt bandwidth 5% cbq(default)
#queue developers bandwidth 80%
#queue marketing  bandwidth 15%
#queue dflt bandwidth 85% cbq(default) priority 3
#queue tor bandwidth 15% priority 1

# Translation: specify how addresses are to be mapped or redirected.
# nat: packets going out through $ext_if with source address $internal_net will
# get translated as coming from the address of $ext_if, a state is created for
# such packets, and incoming packets will be redirected to the internal address.

rdr on $ext_if proto tcp from <spamd> to any port smtp -> 127.0.0.1 port 8025

# block SMTP from Hotmail and other spammer networks
# hotmail.com
rdr on $ext_if proto tcp from 65.54/16 to any port smtp -> 127.0.0.1 port 8025
rdr on $ext_if proto tcp from 64.4/16 to any port smtp -> 127.0.0.1 port 8025
# prod-infinitum.com.mx
rdr on $ext_if proto tcp from 201.153.0.0/16 to any port smtp -> 127.0.0.1 port 
8025
# voyager.net
rdr on $ext_if proto tcp from 216.93.66.0/24 to any port smtp -> 127.0.0.1 port 
8025
#rdr on $ext_if proto tcp from any to any port smtp -> $mta_ad port $mta_pt

# FTP
rdr on { $int_if,$pub_if } proto tcp from any to any port ftp -> 127.0.0.1

#nat on $ext_if from $internal_net to any -> ($ext_if)
#binat on $ext_if from $earth_dmz to any -> $earth_ext
binat on $dmz_if from $earth_dmz to any -> $internal_addr
binat on $ext_if from $home_int to any -> $home_ext
binat on $ext_if from $raven_int to any -> $raven_ext
binat on $ext_if from $lair_int to any -> $lair_ext
binat on $ext_if from $thunder_int to any -> $thunder_ext
#binat on $ext_if from $lupin_router to any -> 66.93.170.253
nat on $ext_if from $internal_net to any -> $external_addr
nat on $ext_if from $dhcp_net to any -> $external_addr
nat on $voip_cfg_if from $internal_net to any -> 192.168.102.2
nat on $dmz_if from $dhcp_net to any -> $dmz_addr
#nat on $ext_if from $lupin_net to any -> $lupin_ext

# rdr: packets coming in on $ext_if with destination $external_addr:1234 will
# be redirected to 10.1.1.1:5678. A state is created for such packets, and
# outgoing packets will be translated as coming from the external address.
#rdr on $ext_if proto tcp from any to $external_addr/32 port 1234 -> 10.1.1.1 
port 5678

# rdr NTP for the GPS time source to the internal network.  Hopefully, this way,
# the time source will answer.
#rdr on $dmz_if $tcp_udp from any to 192.168.18.10/32 port ntp -> $earth_int

# rdr outgoing FTP requests to the ftp-proxy
#rdr on $int_if proto tcp from any to any port ftp -> 127.0.0.1 port 8021

# spamd-setup puts addresses to be redirected into table <spamd>.
table <spamd> persist
no rdr on { lo0, lo1 } from any to any
rdr inet proto tcp from <spamd> to any port smtp -> 127.0.0.1 port 8025

# redirect connections from spammers to spamd, all legitimate
# connections will not be redirected
#rdr on $ext_if inet proto tcp \
#from <spamd> to ($ext_if) port 25 -> 127.0.0.1 port 8025

# block IPv6
block in quick inet6 all

antispoof       log quick       for { $ext_if, $pub_if }
pass  in        log quick       on lo0 from any to any

# enable authpf rules
anchor "authpf/*"

# pass redirected connections to spamd listening on the local
# loop interface (lo0)
pass in log quick on lo0 inet proto tcp \
from <spamd> to 127.0.0.1 port 8025

#allow SMTP, DNS, ICMP
#pass in log quick on $int_if inet proto tcp from any to any port { smtp, 
domain } flags S/SA synproxy state
pass in log quick on $int_if inet proto tcp from any to any port { smtp, domain 
} keep state
pass in log quick on $int_if inet proto udp from any to any port domain
pass log quick proto icmp all

#block the outside world unless...
block in log on { $ext_if, $pub_if } all

#allow access to the outside world unless...
pass out log on { $ext_if, $pub_if } all

# protect VOIP configuration
#pass out log quick on $voip_cfg_if proto tcp from $internal_net to any flags 
S/SA synproxy state
pass out log quick on $voip_cfg_if proto tcp from $internal_net to any keep 
state

#allow ssh, printing from trusted networks
#pass log quick on $ext_if proto tcp from $trusted_external to any port ssh 
flags S/SA synproxy state
pass log quick on $ext_if proto tcp from $trusted_external to any port ssh keep 
state
#pass log quick on { $int_if, $dmz_if, $pub_if } proto tcp from any to any port 
{ ssh, 515, 631 } flags S/SA synproxy state
pass log quick on { $int_if, $dmz_if, $pub_if } proto tcp from any to any port 
{ ssh, 515, 631 } keep state
#pass in log quick on $ext_if proto tcp from $trusted_external to 192.168.18.20 
port { 515, 631 } flags S/SA synproxy state
pass in log quick on $ext_if proto tcp from $trusted_external to 192.168.18.20 
port { 515, 631 } keep state

#allow NFS within site
#sunrpc         111/tcp    rpcbind      #SUN Remote Procedure Call
#sunrpc         111/udp    rpcbind      #SUN Remote Procedure Call
#nfsd-status    1110/tcp   #Cluster status info
#nfsd-keepalive 1110/udp   #Client status info
#nfsd           2049/tcp   nfs          # NFS server daemon
#nfsd           2049/udp   nfs          # NFS server daemon
block log quick on { $ext_if, $pub_if } inet $tcp_udp from any to any port { 
rpcbind, nfsd-status, nfsd-keepalive, nfsd }
pass log quick inet $tcp_udp from any to any port { rpcbind, nfsd-status, 
nfsd-keepalive, nfsd } keep state

#block ports used by W32.Blaster.Worm, per Speakeasy alert 12 Aug 2003
block in log quick on { $ext_if, $pub_if } inet $tcp_udp from any to any port 
134 >< 140
block in log quick on { $ext_if, $pub_if } inet $tcp_udp from any to any port 
445
block in log quick on { $ext_if, $pub_if } inet $tcp_udp from any to any port 
593
#block ports recommended by CERT
block in log quick on { $ext_if, $pub_if } inet proto udp from any to any port 
69
block in log quick on { $ext_if, $pub_if } inet proto tcp from any to any port 
87
block in log quick on { $ext_if, $pub_if } inet $tcp_udp from any to any port 
111
block in log quick on { $ext_if, $pub_if } inet proto tcp from any to any port 
511 >< 516
block in log quick on { $ext_if, $pub_if } inet proto tcp from any to any port 
540
block in log quick on { $ext_if, $pub_if } inet $tcp_udp from any to any port 
2000
block in log quick on { $ext_if, $pub_if } inet $tcp_udp from any to any port 
2049
block in log quick on { $ext_if, $pub_if } inet $tcp_udp from any to any port 
5999 >< 6064
#block ports recommended by Felix von Leitner
block in log quick on { $ext_if, $pub_if } inet $tcp_udp from any to any port 
5000
block in log quick on { $ext_if, $pub_if } inet $tcp_udp from any to any port 
1025

#LDAP stuff
block in log quick on { $ext_if, $pub_if } inet $tcp_udp from any to any port 
ldap
block in log quick on { $ext_if, $pub_if } inet $tcp_udp from any to any port 
ldaps
#pass in log quick on $int_if inet $tcp_udp from any to any port ldap
#pass in log quick on $int_if inet $tcp_udp from any to any port ldaps

#allow non-privileged ports anywhere
#pass log quick $tcp_udp from any to any port>1023 flags S/SA synproxy state
pass log quick $tcp_udp from any to any port>1023 keep state

#allow Tor services to router
#pass  in $tcp_udp from any to { $external_addr, $internal_addr } port { 9001, 
9030 } flags S/SA synproxy state
pass  in $tcp_udp from any to { $external_addr, $internal_addr } port { 9001, 
9030 } keep state

#allow FTP to ftp-proxy
#pass in on $ext_if inet proto tcp from port ftp-data to 127.0.0.1 user proxy 
flags S/SA synproxy state
pass in on $ext_if inet proto tcp from port ftp-data to 127.0.0.1 user proxy 
keep state

#allow internal access to and from DMZ
#pass  in log quick $tcp_udp from { $internal_net, $dmz_net } to { 
$internal_net, $dmz_net } flags S/SA synproxy state
pass  in log quick $tcp_udp from { $internal_net, $dmz_net } to { 
$internal_net, $dmz_net } keep state
#pass out log quick $tcp_udp from { $internal_net, $dmz_net } to { 
$internal_net, $dmz_net } flags S/SA synproxy state
pass out log quick $tcp_udp from { $internal_net, $dmz_net } to { 
$internal_net, $dmz_net } keep state

#allow Internet access here
#pass in log quick on { $dmz_if, $int_if, $pub_if } $tcp_udp from { 
$internal_net, $dmz_net, $dhcp_net } to any flags S/SA synproxy state
pass in log quick on { $dmz_if, $int_if, $pub_if } $tcp_udp from { 
$internal_net, $dmz_net, $dhcp_net } to any keep state

# pass incoming ports for ftp-proxy
#pass in on $ext_if inet proto tcp from any to $ext_if user proxy keep state 
queue dflt

# assign packets to a queue.
#pass out on $ext_if from 192.168.0.0/24 to any keep state queue developers 
queue dflt
#pass out on $ext_if from 192.168.1.0/24 to any keep state queue marketing 
queue dflt
#       $OpenBSD: dhcpd.conf,v 1.1 1998/08/19 04:25:45 form Exp $
#
# DHCP server options.
# See dhcpd.conf(5) and dhcpd(8) for more information.
#

# Network:              192.168.20.0/255.255.255.0
# Domain name:          cybernude.org
# Name servers:         192.168.19.4
# Default router:       192.168.17.1
# Addresses:            192.168.20.2 - 192.168.20.254
#
shared-network LOCAL-NET {
        option  domain-name "cybernude.org";
        option  domain-name-servers 192.168.18.31, 192.168.19.130, 64.81.79.2, 
216.231.41.2;

        subnet 192.168.17.0 netmask 255.255.255.0 {
                option routers 192.168.17.1;
        }
        subnet 192.168.20.0 netmask 255.255.255.0 {
                option routers 192.168.20.1;
                range 192.168.20.2 192.168.20.254;
        }
}

#domain cybernude.org
#nameserver 192.168.19.130
#nameserver 192.168.18.31
#nameserver 64.81.79.2
#nameserver 216.231.41.2

#shared-network LUPIN {
        #option  domain-name "cybernude.org";
        #option  domain-name-servers 192.168.18.31;

        #subnet 192.168.100.0 netmask 255.255.255.0 {
                #option routers 192.168.100.1;
                #range 192.168.100.100 192.168.100.200;
        #}
#}
ddns-update-style ad-hoc;

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