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01.10.2008 at 11:13PM PST, ID: 23075046
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9.0

CISCO ASA5505 Split Tunnel Issue and SMTP verify from external receiving email server.

Asked by dstanton007 in Networking Hardware Firewalls, Cisco PIX Firewall

Tags: , ,

Hello,

Im trying to configure a Cisco ASA 5505 to allow for vpnusers to access local network resources and to also browse the web as they are connected.  I also have another issue with this configuration, where some mail servers are blocking email from the exchange server because they are not able to verify sending email accounts.  I've forwarded port 25 and also disabled SMTP filtering.  

Running Config posted below:

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: Written by enable_15 at 23:02:43.418 UTC Thu Jan 10 2008
!
ASA Version 8.0(2) 
!
hostname ciscoasa
domain-name ########.com
enable password ########### encrypted
names
name ######## mailcheck.level2hosting.com description Mail Check Server
!
interface Vlan1
 nameif inside
 security-level 100
 ip address 192.168.1.1 255.255.255.0 
!
interface Vlan2
 nameif outside
 security-level 0
 ip address ########### 255.255.255.240 
!
interface Vlan3
 no forward interface Vlan1
 nameif dmz
 security-level 50
 ip address 192.168.2.1 255.255.255.0 
!
interface Ethernet0/0
 switchport access vlan 2
!
interface Ethernet0/1
 switchport access vlan 3
!
interface Ethernet0/2
!
interface Ethernet0/3
!
interface Ethernet0/4
!
interface Ethernet0/5
!
interface Ethernet0/6
!
interface Ethernet0/7
!
passwd ############ encrypted
ftp mode passive
dns server-group DefaultDNS
 domain-name #######.com
same-security-traffic permit inter-interface
same-security-traffic permit intra-interface
access-list vpnusers_splitTunnelAcl standard permit any 
access-list outside_access_in extended permit tcp any host 192.168.1.2 eq www 
access-list inbound extended permit tcp any interface outside eq 3389 
access-list inbound remark LDAP access for mailcheckl
access-list inbound extended permit tcp host mailcheck.level2hosting.com interface outside eq ldap 
access-list inbound extended permit tcp any interface outside eq smtp 
access-list inbound extended permit tcp any interface outside eq www 
access-list inbound extended permit tcp any interface outside eq https 
access-list vpnuser_splitTunnelAcl extended permit ip 192.168.1.0 255.255.255.0 any 
pager lines 24
logging enable
logging asdm informational
mtu inside 1500
mtu outside 1500
mtu dmz 1500
ip local pool vpnusers 192.168.1.70-192.168.1.90 mask 255.255.255.0
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-602.bin
no asdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 1 0.0.0.0 0.0.0.0
nat (dmz) 1 0.0.0.0 0.0.0.0
static (inside,outside) tcp interface 3389 192.168.1.2 3389 netmask 255.255.255.255 
static (inside,outside) tcp interface ldap 192.168.1.2 ldap netmask 255.255.255.255 
static (inside,outside) tcp interface smtp 192.168.1.2 smtp netmask 255.255.255.255 
static (inside,outside) tcp interface https 192.168.1.2 https netmask 255.255.255.255 
static (inside,outside) tcp interface www 192.168.1.2 www netmask 255.255.255.255 
access-group inbound in interface outside
route outside 0.0.0.0 0.0.0.0 ############ 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
dynamic-access-policy-record DfltAccessPolicy
aaa-server server protocol radius
aaa-server server host 192.168.1.2
 timeout 5
 key ##############
http server enable
http 192.168.1.0 255.255.255.0 inside
http 75.84.53.211 255.255.255.255 outside
http 192.168.2.0 255.255.255.0 dmz
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac 
crypto ipsec transform-set ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac 
crypto ipsec transform-set ESP-DES-SHA esp-des esp-sha-hmac 
crypto ipsec transform-set ESP-DES-MD5 esp-des esp-md5-hmac 
crypto ipsec transform-set ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac 
crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac 
crypto ipsec transform-set ESP-AES-256-SHA esp-aes-256 esp-sha-hmac 
crypto ipsec transform-set ESP-AES-128-SHA esp-aes esp-sha-hmac 
crypto ipsec transform-set ESP-AES-192-SHA esp-aes-192 esp-sha-hmac 
crypto ipsec transform-set ESP-AES-128-MD5 esp-aes esp-md5-hmac 
crypto dynamic-map outside_dyn_map 20 set pfs 
crypto dynamic-map outside_dyn_map 20 set transform-set ESP-3DES-SHA
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set transform-set ESP-AES-128-SHA ESP-AES-128-MD5 ESP-AES-192-SHA ESP-AES-192-MD5 ESP-AES-256-SHA ESP-AES-256-MD5 ESP-3DES-SHA ESP-3DES-MD5 ESP-DES-SHA ESP-DES-MD5
crypto map outside_map 65535 ipsec-isakmp dynamic outside_dyn_map
crypto map outside_map interface outside
crypto map inside_map 65535 ipsec-isakmp dynamic SYSTEM_DEFAULT_CRYPTO_MAP
crypto map inside_map interface inside
crypto isakmp enable inside
crypto isakmp enable outside
crypto isakmp policy 10
 authentication pre-share
 encryption 3des
 hash sha
 group 2
 lifetime 86400
telnet 192.168.1.0 255.255.255.0 inside
telnet timeout 5
ssh timeout 5
console timeout 0
dhcpd dns 192.168.1.2
dhcpd wins 192.168.1.2
dhcpd domain aocds.local
dhcpd auto_config outside
!
dhcpd address 192.168.1.100-192.168.1.150 inside
dhcpd dns 192.168.1.2 interface inside
dhcpd enable inside
!
dhcpd address 192.168.2.100-192.168.2.200 dmz
dhcpd dns 208.67.222.222 208.67.220.220 interface dmz
dhcpd enable dmz
!
 
threat-detection basic-threat
threat-detection statistics access-list
!
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 sqlnet 
  inspect skinny  
  inspect sunrpc 
  inspect xdmcp 
  inspect sip  
  inspect netbios 
  inspect tftp 
!
service-policy global_policy global
group-policy vpnusers internal
group-policy vpnusers attributes
 wins-server value 192.168.1.2
 dns-server value 192.168.1.2
 vpn-tunnel-protocol IPSec 
 split-tunnel-policy tunnelspecified
 split-tunnel-network-list value vpnusers_splitTunnelAcl
 default-domain value ##########.local
tunnel-group vpnusers type remote-access
tunnel-group vpnusers general-attributes
 address-pool vpnusers
 authentication-server-group server
 default-group-policy vpnusers
tunnel-group vpnusers ipsec-attributes
 pre-shared-key ###########
prompt hostname context 
Cryptochecksum:6c3ab2d4f818c2dcd01082b995483a5a
[+][-]01.11.2008 at 02:11AM PST, ID: 20635180

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[+][-]01.11.2008 at 06:42AM PST, ID: 20636649

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About this solution

Zones: Networking Hardware Firewalls, Cisco PIX Firewall
Tags: Cisco, ASA, 5505
Sign Up Now!
Solution Provided By: batry_boy
Participating Experts: 2
Solution Grade: A
 
 
[+][-]01.11.2008 at 08:44AM PST, ID: 20637841

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[+][-]01.11.2008 at 06:17PM PST, ID: 20642353

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[+][-]01.13.2008 at 09:42PM PST, ID: 20651124

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[+][-]01.15.2008 at 11:31AM PST, ID: 20665659

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