iptables, failtoban and dnsmasq revision

3 files changed, 32 insertions, 409 deletions

diff --git a/core/scripts/iptables-br.sh b/core/scripts/iptables-br.sh
deleted file mode 100644
index be1280c..0000000
--- a/core/scripts/iptables-br.sh
+++ /dev/null
@@ -1,395 +0,0 @@
-#!/bin/sh
-
-#
-#                                XXXXXXXXXXXXXXXXX
-#                                XXXX Network XXXX
-#                                XXXXXXXXXXXXXXXXX
-#                                        +
-#                                        |
-#                                        v
-#  +-------------+              +------------------+
-#  |table: filter| <---+        | table: nat       |
-#  |chain: INPUT |     |        | chain: PREROUTING|
-#  +-----+-------+     |        +--------+---------+
-#        |             |                 |
-#        v             |                 v
-#  [local process]     |           ****************          +--------------+
-#        |             +---------+ Routing decision +------> |table: filter |
-#        v                         ****************          |chain: FORWARD|
-# ****************                                           +------+-------+
-# Routing decision                                                  |
-# ****************                                                  |
-#        |                                                          |
-#        v                        ****************                  |
-# +-------------+       +------>  Routing decision  <---------------+
-# |table: nat   |       |         ****************
-# |chain: OUTPUT|       |               +
-# +-----+-------+       |               |
-#       |               |               v
-#       v               |      +-------------------+
-# +--------------+      |      | table: nat        |
-# |table: filter | +----+      | chain: POSTROUTING|
-# |chain: OUTPUT |             +--------+----------+
-# +--------------+                      |
-#                                       v
-#                               XXXXXXXXXXXXXXXXX
-#                               XXXX Network XXXX
-#                               XXXXXXXXXXXXXXXXX
-#
-# iptables [-t table] {-A|-C|-D} chain rule-specification
-#
-# iptables [-t table] {-A|-C|-D} chain  rule-specification
-#
-# iptables  [-t table] -I chain [rulenum] rule-specification
-#
-# iptables [-t table] -R chain rulenum  rule-specification
-#
-# iptables [-t table] -D chain rulenum
-#
-# iptables [-t table] -S [chain [rulenum]]
-#
-# iptables  [-t  table]  {-F|-L|-Z} [chain [rulenum]] [options...]
-#
-# iptables [-t table] -N chain
-#
-# iptables [-t table] -X [chain]
-#
-# iptables [-t table] -P chain target
-#
-# iptables [-t table]  -E  old-chain-name  new-chain-name
-#
-# rule-specification = [matches...] [target]
-#
-# match = -m matchname [per-match-options]
-#
-#
-# Targets
-#
-# can be a user defined chain
-#
-# ACCEPT - accepts the packet
-# DROP   - drop the packet on the floor
-# QUEUE  - packet will be stent to queue
-# RETURN - stop traversing this chain and
-#          resume ate the next rule in the
-#          previeus (calling) chain.
-#
-# if packet reach the end of the chain or
-# a target RETURN, default policy for that
-# chain is applayed.
-#
-# Target Extensions
-#
-# AUDIT
-# CHECKSUM
-# CLASSIFY
-# DNAT
-# DSCP
-# LOG
-#     Torn on kernel logging, will print some
-#     some information on all matching packets.
-#     Log data can be read with dmesg or syslogd.
-#     This is a non-terminating target and a rule
-#     should be created with matching criteria.
-#
-#     --log-level level
-#           Level of logging (numeric or see sys-
-#           log.conf(5)
-#
-#     --log-prefix prefix
-#           Prefix log messages with specified prefix
-#           up to 29 chars log
-#
-#     --log-uid
-#           Log the userid of the process with gener-
-#           ated the packet
-# NFLOG
-#     This target pass the packet to loaded logging
-#     backend to log the packet. One or more userspace
-#     processes may subscribe to the group to receive
-#     the packets.
-#
-# ULOG
-#     This target provides userspace logging of maching
-#     packets. One or more userspace processes may then
-#     then subscribe to various multicast groups and
-#     then receive the packets.
-#
-#
-# Commands
-#
-# -A, --append chain rule-specification
-# -C, --check chain rule-specification
-# -D, --delete chain rule-specification
-# -D, --delete chain rulenum
-# -I, --insert chain [rulenum] rule-specification
-# -R, --replace chain rulenum rule-specification
-# -L, --list [chain]
-# -P, --policy chain target
-#
-# Parameters
-#
-# -p, --protocol protocol
-#       tcp, udp, udplite, icmp, esp, ah, sctp, all
-# -s, --source address[/mask][,...]
-# -d, --destination address[/mask][,...]
-# -j, --jump target
-# -g, --goto chain
-# -i, --in-interface name
-# -o, --out-interface name
-# -f, --fragment
-# -m, --match options module-name
-#       iptables can use extended packet matching
-#       modules.
-# -c, --set-counters packets bytes
-
-IPT="/usr/sbin/iptables"
-SPAMLIST="blockedip"
-SPAMDROPMSG="BLOCKED IP DROP"
-# public interface to network/internet
-#PUB_IF="wlp7s0"
-PUB_IF="enp8s0"
-BR_IF="br0"
-PUB_IP="10.0.0.254"
-NET_ADDR="10.0.0.0/8"
-GW="10.0.0.1"
-# private interface for virtual/internal
-PRIV_IF="wlp7s0"
-PRIV_IP="192.168.1.33"
-
-echo "Stopping ipv4 firewall and deny everyone..."
-
-iptables -F
-iptables -X
-iptables -t nat -F
-iptables -t nat -X
-iptables -t mangle -F
-iptables -t mangle -X
-iptables -t raw -F
-iptables -t raw -X
-iptables -t security -F
-iptables -t security -X
-iptables -N blocker
-
-iptables -N netconf_in
-iptables -N netconf_out
-iptables -N server_in
-iptables -N server_out
-iptables -N client_in
-iptables -N client_out
-
-# Set Default Rules
-iptables -P INPUT DROP
-iptables -P FORWARD DROP
-iptables -P OUTPUT DROP
-
-echo "Starting ipv4 firewall tables..."
-# Unlimited on loopback
-$IPT -A INPUT -i lo -s 127.0.0.0/8 -d 127.0.0.0/8 -j ACCEPT
-$IPT -A OUTPUT -o lo -s 127.0.0.0/8 -d 127.0.0.0/8 -j ACCEPT
-$IPT -A INPUT -i lo -s ${PUB_IP} -d ${PUB_IP} -j ACCEPT
-$IPT -A OUTPUT -o lo -s ${PUB_IP} -d ${PUB_IP} -j ACCEPT
-
-#modprobe ip_conntrack
-#modprobe ip_conntrack_ftp
-#echo 1 > /proc/sys/net/ipv4/ip_forward
-
-####### blocker Chain  ######
-## Block google dns
-$IPT -A blocker -s 8.8.0.0/24 -j LOG --log-level 7 --log-prefix "iptables: blocker google: "
-$IPT -A blocker -s 8.8.0.0/24 -j DROP
-## Block sync
-$IPT -A blocker -p tcp ! --syn -m state --state NEW -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 7 --log-prefix "iptables: drop sync: "
-$IPT -A blocker -p tcp ! --syn -m state --state NEW -j DROP
-## Block Fragments
-$IPT -A blocker -f -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop frag: "
-$IPT -A blocker -f -j DROP
-
-$IPT -A blocker -p tcp --tcp-flags ALL FIN,URG,PSH -j DROP
-$IPT -A blocker -p tcp --tcp-flags ALL ALL -j DROP
-
-$IPT -A blocker -p tcp --tcp-flags ALL NONE -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop null: "
-$IPT -A blocker -p tcp --tcp-flags ALL NONE -j DROP # NULL packets
-
-$IPT -A blocker -p tcp --tcp-flags SYN,RST SYN,RST -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop syn rst syn rst: "
-$IPT -A blocker -p tcp --tcp-flags SYN,RST SYN,RST -j DROP
-
-$IPT -A blocker -p tcp --tcp-flags SYN,FIN SYN,FIN -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop xmas: "
-$IPT -A blocker -p tcp --tcp-flags SYN,FIN SYN,FIN -j DROP #XMAS
-
-$IPT -A blocker -p tcp --tcp-flags FIN,ACK FIN -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop fin scan: "
-$IPT -A blocker -p tcp --tcp-flags FIN,ACK FIN -j DROP # FIN packet scans
-
-$IPT -A blocker -p tcp --tcp-flags ALL SYN,RST,ACK,FIN,URG -j DROP
-## Return to caller
-$IPT -A blocker -j RETURN
-
-####### server input Chain  ######
-#echo "server_in chain: Allow to VNC Server"
-#$IPT -A server_in -p tcp --dport 5900 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
-#echo "server_in chain: Allow to DataBase Server"
-#$IPT -A server_in -p tcp --dport 5432 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
-#echo "server_in chain: Allow to SSH server"
-#$IPT -A server_in -p tcp --dport 2222 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
-#echo "server_in chain: Allow input to HTTPS Server"
-#$IPT -A server_in -p tcp --dport 443 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
-#echo "server_in chain: Allow input to HTTP Server"
-#$IPT -A server_in -p tcp --dport 80 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
-echo "server_in chain: Allow input to DNS Server"
-$IPT -A server_in -p udp --dport 53 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
-$IPT -A server_in -p tcp --dport 53 --sport 1024:65535  -m state --state NEW,ESTABLISHED -j ACCEPT
-#echo "server_in chain: Allow input to GIT server"
-#$IPT -A server_in -p tcp --dport 9418 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
-
-## Return to caller
-$IPT -A server_in -j RETURN
-
-####### server output Chain  ######
-echo "server_out chain: Allow output from DNS server"
-$IPT -A server_out -p udp --sport 53 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT
-$IPT -A server_out -p tcp --sport 53 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT
-#echo "server_out chain: Allow output from GIT server"
-#$IPT -A server_out -p tcp --sport 9418 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT
-#echo "server_out chain: Allow output from https server"
-#$IPT -A server_out -p tcp --sport 443 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT
-#echo "server_out chain: Allow output from http server"
-#$IPT -A server_out -p tcp --sport 80 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT
-#echo "server_out chain: Allow output from SSH server"
-#$IPT -A server_out -p tcp --sport 2222 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
-#echo "server_out chain: Allow output from Data Base server"
-#$IPT -A server_out -p tcp --sport 5432 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
-#echo "server_out chain: Allow output from VNC server"
-#$IPT -A server_out -p tcp --sport 5900 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT
-
-## Return to caller
-$IPT -A server_out -j RETURN
-
-####### client input Chain  ######
-echo "client_in chain: Allow input from IRC server"
-$IPT -A client_in -p tcp --sport 6667 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
-echo "client_in chain: Allow input from FTP server"
-$IPT -A client_in -p tcp --sport 21 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
-echo "client_in chain: Allow input from GIT server"
-$IPT -A client_in -p tcp --sport 9418 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
-echo "client_in chain: Allow input from POP3S server"
-$IPT -A client_in -p tcp --sport 995 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
-echo "client_in chain: Allow input from SMTPS server"
-$IPT -A client_in -p tcp --sport 465 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
-echo "client_in chain: Allow input from HTTP Server"
-$IPT -A client_in -p tcp --sport 80 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
-echo "client_in chain: Allow input from HTTPS server"
-$IPT -A client_in -p tcp --sport 443 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
-#$IPT -A client_in -p udp --sport 443 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
-echo "client_in chain: Allow input from DNS Server"
-$IPT -A client_in -p udp --sport 53 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
-echo "client_in chain: Allow input from SSH Server"
-$IPT -A client_in -p tcp --sport 2222 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
-$IPT -A client_in -p tcp --sport 22 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
-echo "client_in chain: Allow input from GPG key Server"
-$IPT -A client_in -p tcp --sport 11371 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
-
-## Return to caller
-$IPT -A client_in -j RETURN
-
-####### client output Chain  ######
-echo "client_out chain: Allow output to IRC  server"
-$IPT -A client_out -p tcp --dport 6667 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
-echo "client_out chain: Allow output to FTP server"
-$IPT -A client_out -p tcp --dport 21 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
-echo "client_out chain: Allow output to GIT server"
-$IPT -A client_out -p tcp --dport 9418 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
-echo "client_out chain: Allow output to POP3S server"
-$IPT -A client_out -p tcp --dport 995 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
-echo "client_out chain: Allow output to SMTPS server"
-$IPT -A client_out -p tcp --dport 465 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
-echo "client_out chain: Allow output to HTTPS server"
-$IPT -A client_out -p tcp --dport 443 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
-$IPT -A client_out -p udp --dport 443 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
-echo "Allow to HTTP server"
-$IPT -A client_out -p tcp --dport 80 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
-echo "client_out chain: Allow output to DNS server"
-$IPT -A client_out -p udp --dport 53 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
-echo "client_out chain: Allow output to SSH server"
-$IPT -A client_out -p tcp --dport 2222 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
-$IPT -A client_out -p tcp --dport 22 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
-echo "client_out chain: Allow output to GPG key Server"
-$IPT -A client_out -p tcp --dport 11371 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT
-
-## Return to caller
-$IPT -A client_out -j RETURN
-
-####### netconf input Chain  ######
-echo "netconf_in chain: Allow DHCP protocol"
-$IPT -A netconf_in -p udp --sport 68 --dport 67 -j ACCEPT
-echo "netconf_in chain: Allow RIP protocol for ${NET_ADDR}"
-$IPT -A netconf_in -p udp --sport 520 --dport 520 -s ${NET_ADDR} -d ${NET_ADDR} -j ACCEPT
-#echo "netconf chain: Allow ICMP from ${NET_ADDR}"
-#$IPT -A netconf_in -p icmp -s ${NET_ADDR} -j ACCEPT
-echo "netconf_in chain: Allow ICMP from all"
-$IPT -A netconf_in -p icmp -j LOG --log-level 7 --log-prefix "iptables: netconf_in ICMP: "
-$IPT -A netconf_in -p icmp -j ACCEPT
-
-## Return to caller
-$IPT -A netconf_in -j RETURN
-
-
-####### netconf output Chain  ######
-echo "netconf_out chain: Allow output from DHCP server"
-$IPT -A netconf_out -p udp --sport 67 --dport 68 -s ${NET_ADDR} -d ${NET_ADDR} -j ACCEPT
-echo "netconf_out chain: Allow RIP protocol for ${NET_ADDR}"
-$IPT -A netconf_out -p udp --sport 520 --dport 520 -s ${NET_ADDR} -d ${NET_ADDR} -j ACCEPT
-#echo "netconf chain: Allow ICMP output to ${NET_ADDR}"
-#$IPT -A netconf_out -p icmp -d ${NET_ADDR} -j ACCEPT
-echo "netconf chain: Allow ICMP output to all"
-$IPT -A netconf_out -p icmp -j LOG --log-level 7 --log-prefix "iptables: netconf_out ICMP: "
-$IPT -A netconf_out -p icmp -j ACCEPT
-
-## Return to caller
-$IPT -A netconf_out -j RETURN
-
-####### AP rules  ######
-#$IPT -t nat -A PREROUTING -i ${BR_IF} -p tcp --dport 80 -j DNAT --to 10.0.0.4:80
-
-$IPT -A FORWARD -j blocker
-#$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -s ${NET_ADDR} -d ${NET_ADDR}  -j ACCEPT
-$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -j netconf_in
-$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -j netconf_out
-$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -d ${NET_ADDR} -j client_in
-$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -s ${NET_ADDR} -j client_out
-$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -d ${NET_ADDR} -j server_in
-$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -s ${NET_ADDR} -j server_out
-
-$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -d ${NET_ADDR} -m physdev --physdev-in ${PUB_IF} --physdev-out tap2 -j ACCEPT
-
-$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -m physdev --physdev-in tap2 --physdev-out ${PUB_IF} -j ACCEPT
-
-#$IPT -A FORWARD -j server_in
-
-#$IPT -t nat -A POSTROUTING -o ${BR_IF} -j SNAT --to ${PUB_IP}
-
-####### Input Chain ######
-$IPT -A INPUT -j blocker
-
-$IPT -A INPUT -i ${BR_IF} -s ${NET_ADDR} -d ${PUB_IP} -j server_in
-$IPT -A INPUT -i ${BR_IF} -d ${NET_ADDR} -j client_in
-$IPT -A INPUT -i ${BR_IF} -j netconf_in
-
-#$IPT -A INPUT -i ${PUB_IF} -d ${NET_ADDR} -j client_in
-
-####### Output Chain ######
-$IPT -A OUTPUT -j blocker
-
-$IPT -A OUTPUT -o ${BR_IF} -s ${PUB_IP} -d ${NET_ADDR} -j server_out
-$IPT -A OUTPUT -o ${BR_IF} -s ${NET_ADDR} -j client_out
-$IPT -A OUTPUT -o ${BR_IF} -j netconf_out
-
-
-#$IPT -A OUTPUT -o ${PUB_IF} -s ${NET_ADDR} -j client_out
-
-## log everything else and drop
-$IPT -A INPUT -j LOG --log-level 7 --log-prefix "iptables: INPUT: "
-$IPT -A OUTPUT -j LOG --log-level 7 --log-prefix "iptables: OUTPUT: "
-$IPT -A FORWARD -j LOG --log-level 7 --log-prefix "iptables: FORWARD: "
-
-iptables-save > /etc/iptables/br-lan.v4
-exit 0
diff --git a/core/scripts/iptables-conf.sh b/core/scripts/iptables-conf.sh
index cd3185b..04e804b 100644
--- a/core/scripts/iptables-conf.sh
+++ b/core/scripts/iptables-conf.sh
@@ -59,7 +59,6 @@ iptables_clear () {
     iptables -P INPUT DROP
     iptables -P FORWARD DROP
     iptables -P OUTPUT DROP
-
 }
 
 iptables_log () {
@@ -120,11 +119,11 @@ iptables_tables () {
     $IPT -A srv_ssh_in -p tcp --dport 2222 -m state --state NEW -m recent --set --name SSH -j ACCEPT
 
     $IPT -A srv_ssh_in -p tcp --dport 2222 -m recent \
-     --update --seconds 60 --hitcount 4 --rttl \
-     --name SSH -j LOG --log-prefix "${SPAMDROPMSG} SSH"
+        --update --seconds 60 --hitcount 4 --rttl \
+        --name SSH -j LOG --log-prefix "${SPAMDROPMSG} SSH"
 
     $IPT -A srv_ssh_in -p tcp --dport 2222 -m recent --update --seconds 60 \
-     --hitcount 4 --rttl --name SSH -j DROP
+        --hitcount 4 --rttl --name SSH -j DROP
 
     $IPT -A srv_ssh_in -p tcp --dport 2222 --sport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
 
@@ -217,6 +216,8 @@ iptables_tables () {
 
     ######## DHCP Server
     $IPT -A srv_dhcp -p udp --sport 68 --dport 67 -j ACCEPT
+    $IPT -A srv_dhcp -p udp --sport 67 --dport 68 -j ACCEPT
+    $IPT -A srv_dhcp -p udp --sport 67 --dport 67 -j ACCEPT
     $IPT -A srv_dhcp -j RETURN
 
     ####### RIP Server
diff --git a/core/scripts/iptables.sh b/core/scripts/iptables.sh
index 9c6cb87..6efdcc6 100644
--- a/core/scripts/iptables.sh
+++ b/core/scripts/iptables.sh
@@ -31,43 +31,60 @@ $IPT -A OUTPUT -o lo -s 127.0.0.0/8 -d 127.0.0.0/8 -j ACCEPT
 $IPT -A INPUT -i lo -s ${PUB_IP} -d ${PUB_IP} -j ACCEPT
 $IPT -A OUTPUT -o lo -s ${PUB_IP} -d ${PUB_IP} -j ACCEPT
 
-
 iptables_tables
 
 case $TYPE in
     bridge)
 
         echo "Setting bridge network..."
-
         echo 1 > /proc/sys/net/ipv4/ip_forward
 
+        
+        ####### NAT Prerouting Chain  ######
+        #PREROUTING: IN=br0 OUT= PHYSIN=tap2 MAC=ff:ff:ff:ff:ff:ff:54:60:be:ef:5c:14:08:00 SRC=0.0.0.0 DST=255.255.255.255 LEN=377 TOS=0x00 PREC=0x00 TTL=64 ID=37544 PROTO=UDP SPT=68 DPT=67 LEN=357
+
         ####### Forward Chain  ######
         $IPT -A FORWARD -j blocker
-        #$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -d ${NET_ADDR} -m physdev --physdev-in ${PUB_IF} --physdev-out tap2 -j ACCEPT
-        #$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -m physdev --physdev-in tap0 --physdev-out ${PUB_IF} -j srv_ssh_out
+        $IPT -A FORWARD -i lo -s 127.0.0.0/8 -d 127.0.0.0/8 -j ACCEPT
+        $IPT -A FORWARD -o lo -s 127.0.0.0/8 -d 127.0.0.0/8 -j ACCEPT
+
         $IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -s ${PUB_IP} -d ${BR_NET} -j cli_ssh_in
         $IPT -A FORWARD -o ${BR_IF} -s ${PUB_IP} -d ${BR_NET} -j cli_ssh_out
 
+        $IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -m physdev --physdev-in ${PUB_IF} --physdev-out tap2 -j srv_rip
+        $IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -m physdev --physdev-in tap2 --physdev-out ${PUB_IF} -j srv_dhcp
+        $IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -m physdev --physdev-in ${PUB_IF} --physdev-out tap2 -j srv_dhcp
+        #$IPT -A FORWARD -o ${BR_IF} -m physdev --physdev-in tap2 --physdev-out ${PUB_IF} -j srv_ssh_out
+
         ####### Input Chain ######
         $IPT -A INPUT -j blocker
+        #Less noise
+        $IPT -A INPUT -i ${BR_IF} -d ${PUB_IP} -p tcp  --sport 3030 --dport 1024:65535 -j DROP
+
         $IPT -A INPUT -i ${BR_IF} -d ${PUB_IP} -j cli_dns_in
         $IPT -A INPUT -i ${BR_IF} -d ${PUB_IP} -j cli_https_in
-
         $IPT -A INPUT -i ${BR_IF} -d ${PUB_IP} -s ${BR_NET} -j cli_ssh_in
 
-        $IPT -A INPUT -i ${BR_IF} -d ${PUB_IP} -p tcp  --sport 3030 --dport 1024:65535 -j DROP
+        $IPT -A INPUT -i ${BR_IF} -m physdev --physdev-in tap2 -j srv_dhcp
+        $IPT -A INPUT -i ${BR_IF} -m physdev --physdev-in ${PUB_IF} -s ${GW} -d ${PUB_IP}  -j srv_dhcp
 
         ####### Output Chain ######
         $IPT -A OUTPUT -j blocker
+        #Less noise
+        $IPT -A OUTPUT -o ${BR_IF} -s ${PUB_IP} -p tcp --dport 3030 --sport 1024:65535 -j DROP
+
         $IPT -A OUTPUT -o ${BR_IF} -s ${PUB_IP} -j cli_dns_out
         $IPT -A OUTPUT -o ${BR_IF} -s ${PUB_IP} -j cli_https_out
         $IPT -A OUTPUT -o ${BR_IF} -s ${PUB_IP} -d ${BR_NET} -j cli_ssh_out
-
-        #Less noise
-        $IPT -A OUTPUT -o ${BR_IF} -s ${PUB_IP} -p tcp --dport 3030 --sport 1024:65535 -j DROP
+        $IPT -A OUTPUT -o ${BR_IF} -s ${PUB_IP} -d ${BR_NET} -j srv_dhcp
 
         ####### PostRouting Chain ######
-        $IPT -t nat -A POSTROUTING -o ${PRIV_IF} -j MASQUERADE
+        #May  6 11:31:45 c9 kernel: iptables: POSTROUTING: IN= OUT=br0 PHYSIN=tap2 PHYSOUT=enp8s0 SRC=0.0.0.0 DST=255.255.255.255 LEN=377 TOS=0x00 PREC=0x00 TTL=64 ID=37544 PROTO=UDP SPT=68 DPT=67 LEN=357
+
+        $IPT -t nat -A POSTROUTING -o lo -s 127.0.0.0/8 -d 127.0.0.0/8 -j ACCEPT
+
+
+        #$IPT -t nat -A POSTROUTING -o ${PRIV_IF} -j MASQUERADE
 
         ## log everything else and drop
         iptables_log