09-07-2007 02:15 PM - edited 03-11-2019 04:08 AM
Hi friends,
I have a firewall with inside, outside + 2 DMZ's.
I am able to talk to the DMZ's from inside and outside interfaces but inter-MZ communication or communication between two DMZ's is not working.
I have all the static translations and routing in place but still it doesn't work.
I have also enabled same security traffic permit inter-interface and intra-interface. Is there any inherent limitation in ASA 5540 for this?
Thanks a lot
Gautam
09-07-2007 02:21 PM
Just wanted to add that Syslog reports the following message for communication between two DMZ's:
%ASA-6-110001: No route to 10.0.3.10 from 10.1.20.2
Thanks a lot
09-07-2007 02:38 PM
Could you please post the relevant parts of the config?
09-07-2007 03:21 PM
Sure, the configs are as follows:
no nat-control
interface GigabitEthernet1/0
nameif SA
security-level 30
ip address 10.0.3.1 255.255.255.0
interface GigabitEthernet1/2
nameif WAN
security-level 100
ip address 10.0.4.1 255.255.255.0
static (WAN,SA) 10.1.20.0 10.1.20.0 netmask 255.255.255.0
access-list SA extended permit ip any any
access-list WAN extended permit ip any any
access-list WAN extended permit icmp any any
access-group SA in interface SA
access-group WAN in interface WAN
Output of show route WAN on ASA
--------------------------------
O IA 10.1.20.0 255.255.255.0 [110/11123] via 10.0.4.3, 0:47:31, WAN
Output of show route SA on ASA
-------------------------------
C 10.0.3.0 255.255.255.0 is directly connected, SA
Output of show run router
-------------------------
router ospf 100
network 10.0.3.0 255.255.255.0 area 20
network 10.0.4.0 255.255.255.0 area 20
network 10.0.5.0 255.255.255.0 area 20
The routers 10.0.4.3 and 10.1.20.1 have OSPF advertised routes for 10.0.3.0.
Note: An interesting thing is that when i turn on capture for packets from 10.1.20.2 towards 10.0.3.10, i am seeing echo requests being sent thru but no echo replies from 10.0.3.10!!!. Also, if i ping the other way (10.0.3.10-->10.1.20.2), i am seeing echo requests being sent and echo replies being received too but firewall seems to drop them!!!
09-08-2007 12:18 AM
Do you use "nat-control" or "no nat-control"?
09-08-2007 11:34 AM
Hi,
I use no nat-control now.
Thanks
09-09-2007 04:29 AM
So you needn't have static.
But another static entry in you config can break communication between two interfaces with the same security level.
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