11-24-2003 07:37 AM - edited 02-20-2020 11:07 PM
I have a faily basic config here, and I can't get it to work :(
I have a couple Citrix servers, web, and a mail server behind my pix. They all have static ip's, so, I want to nat them at the firewall to re-direct to my internal servers. Here is my config (Ip address's changed for security reasons)
Can anyone here see if I'm missing anything? It's driving me crazy!!
PIX Version 6.3(1)
interface ethernet0 auto
interface ethernet1 auto
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password xxxxx
passwd xxxxxx
hostname firewall
domain-name somecompany.com
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
access-list nonat permit ip 192.168.100.0 255.255.255.0 192.168.200.0 255.255.255.0
access-list 151 permit ip 192.168.100.0 255.255.255.0 192.168.200.0 255.255.255.0
access-list inbound permit tcp any host 207.229.61.2 eq www
access-list inbound permit tcp any host 207.229.61.2 eq ssh
access-list inbound permit tcp any host 207.229.61.3 eq smtp
access-list inbound permit tcp any host 207.229.61.3 eq www
access-list inbound permit tcp any host 207.229.61.4 eq citrix-ica
access-list inbound permit tcp any host 207.229.61.5 eq citrix-ica
access-list inbound permit tcp any host 207.229.61.5 eq 3389
access-list inbound permit tcp any host 207.229.61.6 eq www
access-list inbound permit tcp any host 207.229.61.6 eq citrix-ica
access-list inbound permit tcp any host 207.229.61.6 eq 3389
access-list inbound permit tcp any host 207.229.61.7 eq www
pager lines 24
mtu outside 1500
mtu inside 1500
ip address outside x.x.x.x 255.255.255.224
ip address inside 192.168.100.86 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool VPNPOOL 192.168.200.20-192.168.200.40
pdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list nonat
nat (inside) 1 0.0.0.0 0.0.0.0 0 0
static (inside,outside) tcp 207.229.61.2 www 192.168.100.138 www netmask 255.255.255.255 0 0
static (inside,outside) tcp 207.229.61.2 ssh 192.168.100.138 ssh netmask 255.255.255.255 0 0
static (inside,outside) tcp 207.229.61.3 smtp 192.168.100.16 smtp netmask 255.255.255.255 0 0
static (inside,outside) tcp 207.229.61.3 www 192.168.100.16 www netmask 255.255.255.255 0 0
static (inside,outside) tcp 207.229.61.4 citrix-ica 192.168.100.11 citrix-ica netmask 255.255.255.255 0 0
static (inside,outside) tcp 207.229.61.5 citrix-ica 192.168.1.3 citrix-ica netmask 255.255.255.255 0 0
static (inside,outside) tcp 207.229.61.5 3389 192.168.1.3 3389 netmask 255.255.255.255 0 0
static (inside,outside) tcp 207.229.61.6 www 192.168.100.18 www netmask 255.255.255.255 0 0
static (inside,outside) tcp 207.229.61.6 citrix-ica 192.168.100.18 citrix-ica netmask 255.255.255.255 0 0
static (inside,outside) tcp 207.229.61.6 3389 192.168.100.18 3389 netmask 255.255.255.255 0 0
static (inside,outside) tcp 207.229.61.7 www 192.168.0.67 www netmask 255.255.255.255 0 0
access-group inbound in interface outside
route outside 0.0.0.0 0.0.0.0 207.229.61.161 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
http server enable
http 192.168.100.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
sysopt connection permit-ipsec
crypto ipsec transform-set CLIENT esp-3des esp-md5-hmac
crypto dynamic-map dynmap 10 set transform-set CLIENT
crypto map mymap 10 ipsec-isakmp dynamic dynmap
crypto map mymap client configuration address initiate
crypto map mymap client configuration address respond
crypto map mymap interface outside
isakmp enable outside
isakmp key ******** address 0.0.0.0 netmask 0.0.0.0
isakmp identity address
isakmp client configuration address-pool local VPNPOOL outside
isakmp policy 10 authentication pre-share
isakmp policy 10 encryption 3des
isakmp policy 10 hash md5
isakmp policy 10 group 2
isakmp policy 10 lifetime 86400
vpngroup LOGICORP address-pool VPNPOOL
vpngroup LOGICORP dns-server 192.168.100.14
vpngroup LOGICORP wins-server 192.168.100.14
vpngroup LOGICORP idle-time 7200
vpngroup LOGICORP password ********
vpngroup dns idle-time 1800
telnet timeout 5
ssh 192.168.100.0 255.255.255.0 inside
ssh timeout 60
console timeout 0
username xxx password xxxxx
terminal width 80
Cryptochecksum:xxx
: end
11-24-2003 01:03 PM
My first view, quickly.
Check your outside IP address or your gateway address, it seems they are not on the same subnet.
Outside IP: 207.229.61.150
Default Gateway: 207.229.61.161
With mask of .224, the IP bounderies are:
0-31
32-63
64-95
96-127
128-159
160-191
...
Perhaps your default gateway should be .151
Regards
Ben
11-24-2003 02:06 PM
Hi Ben,
Good eye, but, the address's are in the same range. I changed them around a bit in the config I posted for security reasons ;)
11-24-2003 03:21 PM
Both Nat statements seem wrong to me.
There is no need for the no-nat statements. In fact I wouldn't be surprised if you are screwing up the ASA engine with those statements, especially the 0.0.0.0 one.
Instead, use a single IP or multiple IP addresses in the server's DMZ(192.168.200.0) for Nat'n the internal clients. This way when you talk to the servers from the inside network you look local to the DMZ(IE 192.168.200.0 net)
try something more like this.
global (outside) 1 207.229.61.150
global (dmz) 1 192.168.200.200-192.168.200.253
global (dmz) 1 192.168.200.254
nat (inside) 1 192.168.1.0 255.255.255.0 0 0
this should cause anything going outside from the inside network to go to PNAT(port nat) on 207.229.61.150
the dmz traffic should get IP to IP maps for the first 53 or so connections then fall to PNAT on 192.168.200.254 for more then 54 connections.
Try those and see if it works.
Remember the ASA engine will automatically allow higher interface connections to lower, so there's no need to create extra rules for that(IE the No-nat statements) If still have access issues, then it's time to look at the ACL's(access-control lists). You should only really need them for the static maps from the outside to the dmz, the rest should be handled automatically.
-K
11-24-2003 03:31 PM
Hi,
Thanks for the response! The nonat statement is there for the VPN traffic. 192.168.200.0 is the VPN pool.
11-24-2003 03:44 PM
I figured it was something like that.
drop the 0.0.0.0 nat statement and try being more specific with the rules.
I would also on the temp, not apply the ACL's for VPN til u have a working setup, then try them. So you know which rules are breaking things and which are not.
-k
11-25-2003 03:13 AM
Hi,
For testing Purpose make simpler Static commands:static (inside,outside) 207.229.61.2 192.168.100.138 .
Hope it will work.
Thanks
Vijay
11-26-2003 09:53 PM
regarding citrix servers, in my opinion you need to add 2 entries in inbound al:
access-list inbound permit udp any host 207.229.61.4 eq 1604
access-list inbound permit udp any host 207.229.61.5 eq 1604
Regards, Archi
11-27-2003 07:43 AM
I'm wonder if on my access-list instead of permitting the address through to the external static address, if I permit it to the internal address.. hmm .. let me try that today when I get a chance.
thanks everyone for your help so far.
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