I have changed service from T1 to ISP, DSL. Previously had a /24 Public block of IPs, now I only have 4 usable Public IPs. I had to change all DMZ servers from Public IP to Private 172.16.x.x and NAT the few Public IPs that I have been given by the ISP, to the most important servers on the 172.16.x.x DMZ
Problem: The inside network can no longer access the servers on the DMZ, now that they are not using Public IPs, even though there are static mappings for 172.16.x.x to the New.DSL.Public.IP The PIX config is as follows;
asdm image flash:/asdm502.bin
asdm location 192.168.x.x 255.255.255.0 inside
asdm history enable
: Saved
:
PIX Version 7.0(2)
names
!
interface Ethernet0
speed 100
duplex full
nameif outside
security-level 0
ip address New.DSL.Public.IP 255.255.255.248
!
interface Ethernet1
speed 100
duplex full
nameif inside
security-level 100
ip address 192.168.x.x 255.255.255.0
!
interface Ethernet2
speed 100
duplex full
nameif dmz
security-level 50
ip address 172.16.x.x 255.255.255.0
!
hostname MyPix
domain-name domain.local
ftp mode passive
clock timezone cst -6
object-group network spam
network-object Very.Old.Net 255.255.255.0
network-object host Very.Old.Net
network-object host Very.Old.Net
access-list outside extended permit tcp any host New.DSL.Public.IP eq www
access-list outside extended permit tcp any host New.DSL.Public.IP eq https
access-list outside extended permit tcp any host New.DSL.Public.IP eq 33893
access-list outside extended permit tcp any host New.DSL.Public.IP eq smtp
access-list outside extended permit tcp any host New.DSL.Public.IP eq pop3
access-list outside extended permit tcp any host New.DSL.Public.IP eq www
access-list outside extended permit tcp any host New.DSL.Public.IP eq https
access-list outside extended permit tcp any host New.DSL.Public.IP eq 8383
access-list outside extended permit tcp any host New.DSL.Public.IP eq ftp
access-list outside extended permit tcp any host New.DSL.Public.IP eq 33893
access-list outside extended permit tcp any host New.DSL.Public.IP eq www
access-list outside extended permit tcp any host New.DSL.Public.IP eq ftp
access-list outside extended permit tcp any host New.DSL.Public.IP eq https
access-list outbound extended deny ip object-group spam any
access-list split_tunnel standard permit 192.168.x.x 255.255.255.0
access-list nonat extended permit ip 192.168.x.x 255.255.255.0 10.20.30.0 255.255.255.0
access-list nonat extended permit ip 192.168.x.x 255.255.255.0 10.20.40.0 255.255.255.0
access-list priv extended permit ip 192.168.x.x 255.255.255.0 172.16.1.0 255.255.255.0
access-list dmz2priv extended permit ip 192.168.x.x 255.255.255.0 72.16.1.0 255.255.255.0
pager lines 24
logging enable
logging timestamp
logging trap notifications
logging host inside 192.168.x.x
mtu outside 1500
mtu inside 1500
mtu dmz 1500
ip verify reverse-path interface outside
ip verify reverse-path interface dmz
ip local pool VPN-Pool 10.20.40.1-10.20.40.254 mask 255.255.255.0
no vpn-addr-assign aaa
no vpn-addr-assign dhcp
monitor-interface outside
monitor-interface inside
monitor-interface dmz
asdm image flash:/asdm502.bin
asdm history enable
arp timeout 14400
nat-control
global (outside) 1 interface
nat (inside) 1 192.168.0.0 255.255.255.0
static (dmz,outside) tcp New.DSL.Public.IP www 172.16.1.3 www netmask 255.255.255.255
static (dmz,outside) tcp New.DSL.Public.IP 33893 172.16.1.3 33893 netmask 255.255.255.255
static (dmz,outside) tcp New.DSL.Public.IP https 172.16.1.3 https netmask 255.255.255.255
static (dmz,outside) tcp New.DSL.Public.IP 8383 172.16.1.2 8383 netmask 255.255.255.255
static (dmz,outside) tcp New.DSL.Public.IP smtp 172.16.1.2 smtp netmask 255.255.255.255
static (dmz,outside) tcp New.DSL.Public.IP pop3 172.16.1.2 pop3 netmask 255.255.255.255
static (dmz,outside) tcp New.DSL.Public.IP 33893 172.16.1.2 33893 netmask 255.255.255.255
static (dmz,outside) tcp New.DSL.Public.IP www 172.16.1.5 www netmask 255.255.255.255
static (dmz,outside) tcp New.DSL.Public.IP ftp 172.16.1.5 ftp netmask 255.255.255.255
static (dmz,outside) tcp New.DSL.Public.IP https 172.16.1.5 https netmask 255.255.255.255
access-group outside in interface outside
route outside 0.0.0.0 0.0.0.0 99.154.222.134 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00
timeout mgcp-pat 0:05:00 sip 0:30:00 sip_media 0:02:00
timeout uauth 0:05:00 absolute
aaa-server TACACS+ protocol tacacs+
aaa-server RADIUS protocol radius
aaa-server VPN-Group protocol nt
aaa-server VPN-Group host 192.168.x.x
timeout 5
nt-auth-domain-controller housrv2
aaa-server VPN-Group host 192.168.x.x
timeout 5
nt-auth-domain-controller nas
group-policy VPN-Group internal
group-policy VPN-Group attributes
dns-server value 192.168.x. My.Inside.Private.IP#2
vpn-access-hours none
vpn-idle-timeout 30
vpn-session-timeout none
vpn-filter none
vpn-tunnel-protocol IPSec
password-storage disable
ip-comp disable
re-xauth disable
group-lock none
pfs disable
split-tunnel-policy tunnelspecified
split-tunnel-network-list value split_tunnel
secure-unit-authentication
disable
user-authentication disable
http server enable
http 192.168.x.x 255.255.255.0 inside
snmp-server host dmz 208.65.176.20 community StringThing
no snmp-server location
no snmp-server contact
snmp-server community The StringThing
snmp-server enable traps snmp
auth-prompt prompt Please Sign In
auth-prompt accept Welcome To My Company
auth-prompt reject Please Check Your Cap and Num Lock Keys and Try Again
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
crypto dynamic-map dyn 1 set transform-set ESP-3DES-SHA
crypto map mymap 20 ipsec-isakmp dynamic dyn
crypto map mymap interface outside
isakmp enable outside
isakmp policy 10 authentication pre-share
isakmp policy 10 encryption 3des
isakmp policy 10 hash sha
isakmp policy 10 group 2
isakmp policy 10 lifetime 86400
isakmp nat-traversal 20
telnet 192.168.x.x 255.255.255.255 inside
telnet 192.168.x.x 255.255.255.255 inside
telnet 192.168.x.x 255.255.255.0 inside
telnet timeout 5
ssh 0.0.0.0 0.0.0.0 outside
ssh 0.0.0.0 0.0.0.0 inside
ssh timeout 5
ssh version 1
console timeout 5
dhcprelay server 192.168.x.x inside
dhcprelay server 192.168.x.x inside
tunnel-group VPN-Group type ipsec-ra
tunnel-group VPN-Group general-attributes
address-pool VPN-Pool
authentication-server-grou
p VPN-Group
default-group-policy VPN-Group
tunnel-group VPN-Group ipsec-attributes
pre-shared-key *
!
class-map inspection_default
match default-inspection-traffic
!
!
policy-map global_policy
class inspection_default
inspect dns maximum-length 512
inspect ftp
inspect h323 h225
inspect h323 ras
inspect http
inspect netbios
inspect rsh
inspect rtsp
inspect skinny
inspect sqlnet
inspect sunrpc
inspect tftp
inspect sip
inspect xdmcp
!
service-policy global_policy global
ntp authentication-key 1 md5 *
ntp trusted-key 1
ssl encryption des-sha1 rc4-md5
command-alias exec c con t
command-alias exec r sh run
command-alias exec i sh int ip bri
: end
Start Free Trial