11-23-2011 08:24 AM - edited 03-11-2019 02:54 PM
Hello All,
I have a 5510 protecting a single MPLS site. I am trying to configure some new rules to allow traffic to flow into the ASA but looking at the logging everything is being denied by a implicit rule.
How can I get past these implicit rules ?
same-security-traffic permit inter-interface
access-list in-out extended permit ip 10.3.0.0 255.255.0.0 10.0.0.0 255.0.0.0
access-list outside_access_in extended permit ip any any
Thanks
Colin
11-23-2011 08:53 AM
Colin,
Where and in which direction these ACLs are placed ? also need to know what you are seeing in logs.
Thanks
Ajay
11-23-2011 08:54 AM
Hi,
the implicit rule is the implicit deny all which is attached by default to traffic flowing from low security level to high security level.To permit some traffic you must create an ACL permitting this traffic like you did( but don't make an explicit permit all at the end otherwise all traffic will be permitted) and apply it to the low level interface inbound with the access-group command.
Regards.
Alain
11-23-2011 09:12 AM
Here are my logs
11-23-2011 09:27 AM
Can you please also post interface configuration ?
Thanks
Ajay
11-23-2011 09:52 AM
Just wondering if 10.3.331 is one of the interface IP and by rule you cannot ping any interface on either the Pix or the ASA unless it is the interface that is facing you.
11-23-2011 10:39 AM
interface Ethernet 0/1
nameif inside
security-level 100
ip address 10.3.0.2 255.255.255.0
interface ethernet 0/0
speed 100
duplex full
nameif outside
security-level 100
ip address 10.3.1.2 255.255.255.0
11-23-2011 12:00 PM
Hi,
Can you post the entire config.
Regards.
Alain
11-23-2011 12:06 PM
Sure... here is the full config.... nothing too fancy.
ASA Version 8.2(4)
!
enable password g45TCjltcS2oGK2I encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
names
!
interface Ethernet0/0
description connected to MPLS ROUTER GIGA0/0
speed 100
duplex full
nameif outside
security-level 100
ip address 10.3.1.2 255.255.255.0
!
interface Ethernet0/1
description connected to INTERNAL switch f1/0/48
nameif inside
security-level 100
ip address 10.3.0.2 255.255.255.0
!
interface Ethernet0/2
shutdown
no nameif
no security-level
no ip address
!
interface Ethernet0/3
shutdown
no nameif
no security-level
no ip address
!
interface Management0/0
shutdown
no nameif
no security-level
no ip address
!
ftp mode passive
clock timezone MST -7
clock summer-time MDT recurring
dns server-group DefaultDNS
domain-name**********
same-security-traffic permit inter-interface
access-list in-out extended permit ip 10.3.0.0 255.255.0.0 10.0.0.0 255.0.0.0
access-list outside_access_in extended permit ip any 10.3.0.0 255.255.0.0
access-list inside_access_in extended permit ip any any
pager lines 24
logging enable
logging asdm informational
mtu outside 1500
mtu inside 1500
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
access-group outside_access_in in interface outside
access-group inside_access_in in interface inside
!
router ospf 1
redistribute static
!
route outside 0.0.0.0 0.0.0.0 10.3.1.1 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 sip-provisional-media 0:02:00 uauth 0:05:00 absolute
timeout tcp-proxy-reassembly 0:01:00
dynamic-access-policy-record DfltAccessPolicy
aaa-server ACS protocol tacacs+
aaa-server ACS (outside) host 10.0.0.29
key *****
aaa authentication ssh console ACS LOCAL
aaa authentication telnet console ACS LOCAL
aaa accounting ssh console ACS
aaa accounting command privilege 15 ACS
aaa accounting telnet console ACS
http server enable
http 10.3.0.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec security-association lifetime seconds 28800
crypto ipsec security-association lifetime kilobytes 4608000
telnet 10.0.57.0 255.255.255.0 outside
telnet timeout 5
ssh 10.0.57.0 255.255.255.0 outside
ssh timeout 5
console timeout 0
threat-detection basic-threat
threat-detection statistics port
threat-detection statistics protocol
threat-detection statistics access-list
threat-detection statistics tcp-intercept rate-interval 30 burst-rate 400 average-rate 200
ntp server 10.0.5.17 source outside prefer
webvpn
username 911ab password bRI8ulPB836Ut5JJ encrypted privilege 15
username itmiss password bImuwBDu9t8S0Nje encrypted privilege 15
!
class-map inspection_default
match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
parameters
message-length maximum client auto
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 ip-options
inspect netbios
inspect rsh
inspect rtsp
inspect skinny
inspect esmtp
inspect sqlnet
inspect sunrpc
inspect tftp
inspect sip
inspect xdmcp
!
service-policy global_policy global
prompt hostname context
call-home
profile CiscoTAC-1
no active
destination address http https://tools.cisco.com/its/service/oddce/services/DDCEService
destination address email callhome@cisco.com
destination transport-method http
subscribe-to-alert-group diagnostic
subscribe-to-alert-group environment
subscribe-to-alert-group inventory periodic monthly
subscribe-to-alert-group configuration periodic monthly
subscribe-to-alert-group telemetry periodic daily
Cryptochecksum:9fbd6638bd309179a31fe938446d30c5
11-23-2011 12:20 PM
can you change security-level 100 to 0 for outside interface ?
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