05-19-2009 01:17 AM - edited 03-11-2019 08:33 AM
Hi.. We are having real problems trying to get NAT to work on our ASA. I have 2 problems.
1. With the below config I cannot ping out to an internet address of though I can browse the internet?
2. I cannot reach port 25 or any other Port. They are allow though my acl's.. is there something wrong with the way I have set up NAT??
hostname ciscoasa
domain-name default.domain.invalid
enable password AHg/jZkGOJYyOC6O encrypted
names
name 192.168.1.4 fixitserv1
!
interface Vlan1
nameif inside
security-level 100
ip address 192.168.1.254 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
pppoe client vpdn group 1
ip address pppoe setroute
!
interface Ethernet0/0
switchport access vlan 2
!
interface Ethernet0/1
!
interface Ethernet0/2
!
interface Ethernet0/3
!
interface Ethernet0/4
!
interface Ethernet0/5
!
interface Ethernet0/6
!
interface Ethernet0/7
!
passwd 2KFQnbNIdI.2KYOU encrypted
ftp mode passive
dns server-group DefaultDNS
domain-name default.domain.invalid
icmp-object echo
access-list ACLOUTSIDE extended permit tcp any host fixitserv1 eq smtp
access-list ACLOUTSIDE extended permit tcp any host fixitserv1 eq https
access-list ACLOUTSIDE extended permit tcp any host fixitserv1 eq ftp
access-list ACLOUTSIDE extended permit tcp any host fixitserv1 eq ftp-data
access-list ACLOUTSIDE extended permit tcp any host fixitserv1 eq www
access-list ACLOUTSIDE extended permit gre any any
access-list ACLOUTSIDE extended permit icmp any any echo-reply
access-list ACLOUTSIDE extended permit icmp any any echo
pager lines 24
logging enable
logging asdm informational
mtu inside 1500
mtu outside 1500
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-522.bin
no asdm history enable
arp timeout 14400
nat-control
global (outside) 1 interface
nat (inside) 1 0.0.0.0 0.0.0.0
static (inside,outside) 203.222.69.26 fixitserv1 netmask 255.255.255.255
access-group ACLOUTSIDE in interface outside
route outside 0.0.0.0 0.0.0.0 203.222.69.26 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 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout uauth 0:05:00 absolute
http server enable
http 192.168.1.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
telnet timeout 5
ssh timeout 5
console timeout 0
vpdn group 1 request dialout pppoe
vpdn group 1 localname fixit-it2@connexus.net.au
vpdn group 1 ppp authentication chap
vpdn username fixit-it2.connexus.net.au password ********* store-local
vpdn username fixit-it2@connexus.net.au password *********
dhcpd auto_config outside
!
!
class-map inspection_default
match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
parameters
message-length maximum 512
policy-map global_policy
class inspection_default
inspect dns preset_dns_map
inspect ftp
inspect h323 h225
inspect h323 ras
inspect rsh
inspect rtsp
inspect esmtp
inspect sqlnet
inspect skinny
inspect sunrpc
inspect xdmcp
inspect sip
inspect netbios
inspect tftp
!
service-policy global_policy global
prompt hostname context
Cryptochecksum:a5bec26d26a65c047c5106b595fc949c
: end
Solved! Go to Solution.
05-19-2009 03:26 AM
Hi,
It looks like you are trying to allow inbound access to your server fixitserv1 correct. Your static NAT is correct however the access list needs to allow inbound access to the PUBLIC IP rather than to the private 192.X.X.X. You access list needs to be modified as below:
access-list ACLOUTSIDE extended permit tcp any host 203.222.69.26 eq smtp
access-list ACLOUTSIDE extended permit tcp any host 203.222.69.26 eq https
access-list ACLOUTSIDE extended permit tcp any host 203.222.69.26 eq ftp
access-list ACLOUTSIDE extended permit tcp any host 203.222.69.26 eq ftp-data
access-list ACLOUTSIDE extended permit tcp any host 203.222.69.26 eq www
access-list ACLOUTSIDE extended permit gre any any
access-list ACLOUTSIDE extended permit icmp any any echo-reply
access-list ACLOUTSIDE extended permit icmp any any echo
In regards to the ICMP part you might need to enable icmp inspection which is disabled by default on the global policy map
hostname(config)# policy-map global_policy
hostname(config-pmap)# class inspection_default
hostname(config-pmap-c)# inspect icmp
hostname(config-pmap-c)# inspect icmp error <- you might not need this one
hostname(config-pmap-c)# exit
From enabled mode type clear xlate and test it again
I hope it helps .. please rate helpful posts
05-19-2009 03:26 AM
Hi,
It looks like you are trying to allow inbound access to your server fixitserv1 correct. Your static NAT is correct however the access list needs to allow inbound access to the PUBLIC IP rather than to the private 192.X.X.X. You access list needs to be modified as below:
access-list ACLOUTSIDE extended permit tcp any host 203.222.69.26 eq smtp
access-list ACLOUTSIDE extended permit tcp any host 203.222.69.26 eq https
access-list ACLOUTSIDE extended permit tcp any host 203.222.69.26 eq ftp
access-list ACLOUTSIDE extended permit tcp any host 203.222.69.26 eq ftp-data
access-list ACLOUTSIDE extended permit tcp any host 203.222.69.26 eq www
access-list ACLOUTSIDE extended permit gre any any
access-list ACLOUTSIDE extended permit icmp any any echo-reply
access-list ACLOUTSIDE extended permit icmp any any echo
In regards to the ICMP part you might need to enable icmp inspection which is disabled by default on the global policy map
hostname(config)# policy-map global_policy
hostname(config-pmap)# class inspection_default
hostname(config-pmap-c)# inspect icmp
hostname(config-pmap-c)# inspect icmp error <- you might not need this one
hostname(config-pmap-c)# exit
From enabled mode type clear xlate and test it again
I hope it helps .. please rate helpful posts
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