12-16-2003 01:40 PM - edited 02-21-2020 12:58 PM
I have vpn set up on Pix 515. Vpn in from remote user to the internal network is working with SplitTunnel. However, I am unable to vpn into any machines in the DMZ.
I have created a nonatDMZ access-list to allow vpn pool IP address to the DMZ, I have applied the nonnatDMZ to the DMZ interface.
When I tested it with ping, I noticed that Inbound ping gets into the firewall : vpnpool > mail server > mail server, but there was no Outbound ping.
Is vpn to DMZ possible, is there any routing that I need to deal with?
Thank you
Eppie
12-18-2003 03:43 PM
VPN to the DMZ is certainly possible, you just need the "nat (dmz) 0 access-list ..." statement which it sounds like you've done.
Can you post your config so we can see that everything looks correct? Just xxxx out any global IP addresses and your passwords.
12-18-2003 03:48 PM
add your DMZ net to your no-nat ACL.
If your DMZ is 192.168.0.0/24 and your inside is 192.168.1.0/24 then use this.
access-list NoNAT permit ip 192.168.0.0 255.255.255.0 192.168.3.0 255.255.255.0
access-list NoNAT permit ip 192.168.1.0 255.255.255.0 192.168.3.0 255.255.255.0
nat (inside) 0 access-list NoNAT
12-19-2003 03:10 PM
The above is wrong, it would have to be:
nat (dmz) 0 access-list NoNAT
since the packets are going to be coming in on the DMZ interface.
12-19-2003 03:36 PM
Instead of having the access-list separately, I have access-list any to the vpn client pool. I also have the nat 0 nonat.
Here's the configuration:
: Saved
: Written by enable_15 at 15:43:22.001 EST Thu Nov 20 2003
PIX Version 6.3(1)
interface ethernet0 auto
interface ethernet1 auto
interface ethernet2 auto
nameif ethernet0 outside security0
nameif ethernet1 inside security100
nameif ethernet2 DMZ security15
enable password yyyyyyy encrypted
passwd ttttttt encrypted
hostname mars
domain-name abc.com
clock timezone EST -5
clock summer-time EDT recurring
fixup protocol ftp 21
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol http 80
fixup protocol ils 389
fixup protocol rsh 514
fixup protocol rtsp 554
fixup protocol sip 5060
fixup protocol sip udp 5060
fixup protocol skinny 2000
fixup protocol smtp 25
fixup protocol sqlnet 1521
names
name 172.16.1.23 eppie
name 142.77.1.1 uunet
name 172.16.1.7 localdns
object-group service HTTP_HTTPS tcp
port-object eq https
port-object eq www
access-list inside_access_in permit tcp any any eq pop3 log
access-list inside_access_in permit tcp any any eq smtp
access-list inside_access_in permit tcp any any eq domain
access-list inside_access_in permit tcp any any eq www
access-list inside_access_in permit tcp any any eq https
access-list inside_access_in permit udp any any eq domain log
access-list inside_access_in permit tcp IT 255.255.255.0 any eq ftp
access-list inside_access_in permit tcp IT 255.255.255.0 any eq telnet
access-list inside_access_in permit tcp any host mail eq smtp
access-list inside_access_in permit tcp any host mail eq pop3
access-list inside_access_in permit tcp any host mail eq imap4
access-list inside_access_in permit tcp host localdns any eq telnet
access-list outside_access_in permit tcp any host 12.34.56.2 eq smtp
access-list outside_access_in permit tcp any host 12.34.56.2 eq pop3
access-list DMZ_access_in permit tcp host mail any eq smtp
access-list DMZ_access_in permit tcp host mail any eq pop3
access-list DMZ_access_in permit tcp host mail any eq imap4
access-list DMZ_access_in permit tcp host mail any eq ident
access-list DMZ_access_in permit udp host mail host localdns eq domain
access-list DMZ_access_in permit icmp any any
access-list outside_cryptomap_20 permit ip any sister 255.255.255.0
access-list 120 permit ip IT 255.255.255.0 sister 255.255.255.0
access-list 120 permit ip HR 255.255.255.0 sister 255.255.255.0
access-list nonat permit ip IT 255.255.255.0 sister 255.255.255.0
access-list nonat permit ip host 172.16.10.15 sister 255.255.255.0
access-list nonat permit ip host 172.16.10.7 sister 255.255.255.0
access-list nonat permit ip 192.168.1.0 255.255.255.0 192.168.200.0 255.255.255.192
access-list nonat permit ip HR 255.255.255.0 sister 255.255.255.0
access-list nonat permit ip any 172.16.255.0 255.255.255.192
access-list outside_cryptomap_dyn_20 permit ip any 172.16.255.0 255.255.255.192
access-list king_splitTunnelAcl permit ip 172.16.0.0 255.255.0.0 any
access-list king_splitTunnelAcl permit ip 192.168.1.0 255.255.255.0 any
access-list nonatDMZ permit ip any 172.16.255.0 255.255.255.192
pager lines 24
logging on
logging timestamp
logging trap notifications
logging host inside 172.16.1.15
mtu outside 1500
mtu inside 1500
mtu DMZ 1500
ip address outside 12.34.56.1 255.255.255.192
ip address inside 172.16.1.1 255.255.128.0
ip address DMZ 192.168.1.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool kingvpn1 172.16.255.1-172.16.255.32
pdm location 172.16.1.2 255.255.255.255 inside
pdm location 172.16.1.15 255.255.255.255 inside
pdm location eppie 255.255.255.255 inside
pdm location 192.168.68.3 255.255.255.255 outside
pdm location IT 255.255.255.0 inside
pdm location 172.16.10.15 255.255.255.255 inside
pdm location 172.16.10.7 255.255.255.255 inside
pdm location 172.16.10.139 255.255.255.255 inside
pdm location time.server 255.255.255.255 inside
pdm location time.server 255.255.255.255 outside
pdm logging errors 100
pdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list nonat
nat (inside) 1 172.16.131.0 255.255.255.0 0 0
nat (inside) 1 172.16.0.0 255.255.128.0 0 0
nat (DMZ) 0 access-list nonatDMZ
static (inside,DMZ) 172.16.0.0 172.16.0.0 netmask 255.255.0.0 0 0
static (DMZ,outside) 12.34.56.2 mail netmask 255.255.255.255 0 0
static (inside,outside) 12.34.56.7 localdns netmask 255.255.255.255 0 0
static (inside,outside) time.server time.server netmask 255.255.255.255 0 0
access-group outside_access_in in interface outside
access-group inside_access_in in interface inside
access-group DMZ_access_in in interface DMZ
route outside 0.0.0.0 0.0.0.0 12.34.56.1 1
route inside 172.16.128.0 255.255.192.0 172.16.1.254 1
route inside 172.16.192.0 255.255.192.0 172.16.1.254 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h225 1:00:00
timeout h323 0:05:00 mgcp 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 LOCAL protocol local
aaa authentication http console LOCAL
aaa authentication telnet console LOCAL
http server enable
http eppie 255.255.255.255 inside
http 172.16.1.15 255.255.255.255 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
tftp-server inside eppie Pix-running-config.txt
floodguard enable
sysopt connection permit-ipsec
crypto ipsec transform-set ESP-DES-MD5 esp-des esp-md5-hmac
crypto dynamic-map outside_dyn_map 20 set transform-set ESP-DES-MD5
crypto dynamic-map outside_dyn_map_1 20 match address outside_cryptomap_dyn_20
crypto dynamic-map outside_dyn_map_1 20 set transform-set ESP-DES-MD5
crypto map outside_map 20 ipsec-isakmp
crypto map outside_map 20 match address 120
crypto map outside_map 20 set peer digital
crypto map outside_map 20 set transform-set ESP-DES-MD5
crypto map outside_map 65535 ipsec-isakmp dynamic outside_dyn_map_1
crypto map outside_map client authentication LOCAL
crypto map outside_map interface outside
isakmp enable outside
isakmp key xxxxxx address digital netmask 255.255.255.255
isakmp identity address
isakmp policy 10 authentication pre-share
isakmp policy 10 encryption des
isakmp policy 10 hash md5
isakmp policy 10 group 2
isakmp policy 10 lifetime 86400
vpngroup king address-pool kingvpn1
vpngroup king dns-server localdns
vpngroup king default-domain abc.com
vpngroup king split-tunnel king_splitTunnelAcl
vpngroup king idle-time 1800
vpngroup king password
telnet eppie 255.255.255.255 inside
telnet 172.16.1.15 255.255.255.255 inside
telnet timeout 30
ssh timeout 30
console timeout 0
username eppie password xxxxxxx encrypted privilege 15
privilege show level 3 command blocks
privilege show level 3 command pdm
terminal width 80
Cryptochecksum:vvvvvvvvvvvvvvvvvvvvv
: end
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