08-01-2012 10:14 AM - edited 03-11-2019 04:37 PM
Allow the web server(193.170.4.2) in DMZ to communicate with the our exchange server(10.77.51.87) internally via SMTP..for which I used access-list acl-dmz permit tcp host 193.170.4.2 host 10.77.51.87 eq smtp but it did not work. Is it because of the deny ip line in acl-outbound..or the nat ..please clarify. FYi ...here is the configuration.
PIX_6.3(5)_515#
access-group acl-inbound in interface outside
access-group acl-outbound in interface inside
access-group acl-dmz in interface dmz1
PIX_6.3(5)_515#
PIX_6.3(5)_515# sh access-list acl-outbound | in deny
access-list acl-outbound line 86 deny ip 10.0.0.0 255.0.0.0 193.170.4.0 255.255.255.0 (hitcnt=1209)
access-list acl-outbound line 90 deny ip any any (hitcnt=1014022)
PIX_6.3(5)_515#
PIX_6.3(5)_515#
PIX_6.3(5)_515# sh access-list acl-dmz
access-list acl-dmz; 2 elements
access-list acl-dmz line 1 permit udp host 193.170.4.2 host 198.6.1.4 eq domain (hitcnt=5625)
access-list acl-dmz line 2 permit ip host 193.170.4.2 any (hitcnt=1089)
PIX_6.3(5)_515#
PIX_6.3(5)_515#
PIX_6.3(5)_515# sh nat
nat (inside) 0 access-list nonat
nat (inside) 1 10.77.51.80 255.255.255.255 0 0
nat (inside) 1 10.77.51.81 255.255.255.255 0 0
nat (inside) 1 10.77.51.87 255.255.255.255 0 0
nat (inside) 2 10.76.0.0 255.255.0.0 0 0
PIX_6.3(5)_515#
PIX_6.3(5)_515# sh run | in static
static (inside,outside) tcp 195.99.136.85 smtp 10.77.51.87 smtp netmask 255.255.255.255 0 0
static (inside,outside) 195.99.136.81 10.77.51.58 netmask 255.255.255.255 0 0
static (inside,outside) 195.99.136.84 10.77.51.38 netmask 255.255.255.255 0 0
static (dmz1,outside) 212.140.175.173 193.170.4.2 netmask 255.255.255.255 0 0
static (dmz1,inside) 212.140.175.173 193.170.4.2 netmask 255.255.255.255 0 0
static (inside,dmz1) 10.76.0.0 10.76.0.0 netmask 255.255.0.0 0 0
PIX_6.3(5)_515#
PIX_6.3(5)_515#
PIX_6.3(5)_515# sh run | in global
global (outside) 1 195.99.136.85
global (outside) 2 interface
PIX_6.3(5)_515#
PIX_6.3(5)_515#
08-01-2012 10:21 AM
hari,
Your best bet is to post this in article in the firewall section.
Thanks,
Tarik Admani
*Please rate helpful posts*
08-01-2012 11:15 AM
Thanks Tarik...Have moved it to Firewall space..
08-01-2012 11:33 AM
Hi Hari,
can you please share the complete configuration, it woudl be easier to corelate things with it.
Thanks,
Varun Rao
Security Team,
Cisco TAC
08-01-2012 11:49 AM
Can I ask you your email id ...will share the config to you.
08-01-2012 11:53 AM
You can p.m. me here...
Thanks,
Varun Rao
Security Team,
Cisco TAC