Levels of security ASA Firewall interface and access lists

Similar Questions

• Levels of security and access lists

  I have DMZ1 (security50) that needs to access DMZ2 (security20). However, for access to the work I need to modify the access list that controls access of DMZ1 inside (Security 100). My understanding is that you only need statements of access list for the access of low to high not top-to-bottom.

  I simply get it wrong?

  Andrew,

  In general what you say is true. That is how the PIX is designed. But, once you apply the acl on the security interface higher than its interior or the demilitarized zone, default behavior is no longer there. In this case, you must allow exclusively the superior traffic lower. So, it's flexibility as security engineer to check our our strictly secure LAN traffic. Although we know that the inside is always fixed, but an acl can be applied to control which traffic is allowed outside or dmz. Your case is a classic example of why you need a lower LCD of higher security interface.

  I hope this helps! Thank you

  Renault

• To connect to the internal interface and access the LAN

  Hello

  I have the following problem, I have a Cisco 2811 router with a serial number and an ethernet interface. On the serial port, I have an address got from the ISP, but not a real IP address. It's a 30 ip only for communication ECCAS my site and the ISP and the ethernet I one of the addresses of my range. I have have need allow VPN connections on this address (ethernet one) and access hosts on the internal LAN.

  I am able to connect to the VPN, but I can't reach any host inside the LAN

  Is it possible to display relevant configuration

  crypto-address ethernet card must be present in the router.

  What also makes sh crypto isakmp her and sh crypto ipsec his give?

• PIX 535 and access lists

  Hello

  We have a Cisco PIX 535. By default, traffic on one more secure interface with a lower security level is allowed, what is?

  OK, I have a doubt, I had to define an access list entry to allow a telnet connection between inside and outside. There is no rule against that traffic, but without this rule the telnet connection cannot be established.

  And my question is: why? It is not supposed to be allowed by default?

  Thanks in advance.

  Higher default-> bottom is allowed... However, once you add instructions permit, it is implicitly deny all at the end. So, if you allow ftp and ssl web... so by default, any other traffic is denied and you need to be precise with your permit.

• IOS VPN on 7200 12.3.1 and access-list problem

  I'm in IOS 12.3 (1) a 7200 and have configured it for VPN access. I use the Cisco VPN client. Wonder if someone has encountered the following problem, and if there is a fix.

  The external interface has the access-list standard applied that blocks incoming traffic. One of the rules is to block the IPs private, not routable, such as the 10.0.0.0 concern, for example.

  When I set my VPN connection, none of my packets get routed and I noticed that outside access list interface blocks the traffic. When I connect to the router through VPN, the router attributes to the client an IP address from a pool of the VPN as 10.1.1.0/24. But normal outside the access list denies this traffic as it should. But as soon as I have established a VPN connect, it seems that my encrypted VPN traffic must ignore the external interface access list.

  If I change my external access list to allow traffic from source address 10.1.1.0/24 my VPN traffic goes through correctly, but this goes against the application to have an outdoor access list that denies such traffic and have a VPN.

  Anyone else seen this problem or can recommend a software patch or version of IOS which works correctly?

  Thank you

  R

  That's how IOS has always worked, no way around it.

  The reasoning is to do with the internal routing on the router. Basically an encrypted packet inherits from the interface and initially past control of ACL as an encrypted packet. Then expelled the crypto engine and decrypted, so we now have this sitting pouch in the cryptographic engine part of the router. What do we with her now, keeping in mind users may want political route she is also, might want to exercise, qos, etc. etc. For this reason, the package is basically delivered on the external interface and running through everything, once again, this time as a decrypted packet. If the package hits the ACL twice, once encrypted and clear once.

  Your external ACL shall include the non encrypted and encrypted form of the package.

  Now, if you're afraid that people can then simply spoof packets to come from 10.1.1.0 and they will be allowed through your router, bzzzt, wrong. The first thing that the router checks when it receives a packet on an interface with a card encryption applied is that if the package needs to be encrypted, it is from his crypto ACL and its IP pools. If he receives a decrypted packet when it knows that it must have been encrypted, it will drop the package immediately and a flag a syslog something as "received the decrypted packet when it should have been."

  You can check on the old bug on this here:

  http://www.Cisco.com/cgi-bin/support/Bugtool/onebug.pl?BugID=CSCdz54626&submit=search

  and take note of the section of the security implications, you may need to slightly modify your configuration.

• Cisco 837 and access list

  Hi all

  Sorry if my question sounds stupid, but I had a lot of problems with the syntax of the access list, especially to remove a line in an access list, for example:

  Here is my list of access

  access-list 120 allow ip 192.168.6.0 0.0.0.255 172.16.0.0 0.0.255.255

  access-list 120 allow ip 192.168.6.0 0.0.0.255 172.20.0.0 0.0.255.255

  access-list 120 allow ip 192.168.6.0 0.0.0.255 172.17.0.0 0.0.255.255

  If I want to delete only this line

  access-list 120 allow ip 192.168.6.0 0.0.0.255 172.16.0.0 0.0.255.255

  I do not know how, I if do:

  no access-list 120 allow ip 192.168.6.0 0.0.0.255 172.16.0.0 0.0.255.255

  all the access-list 120 is removed!

  Help, please!

  Olivier

  Hi, this is the usual behavior, if you delete the access list of the entire statement with sequence number is deleted.

  You can create a named extended access-list and have the sequence number for each statements.

  !

  Standard IP access list note

  permit 172.10.0.0 0.0.255.255

  10.1.1.0 permit 0.0.0.255

  permit 192.168.1.0 0.0.0.255

  deny all

  !

  and if you want to delete something in between, or any particular line, you can run the command like this that will remove this line instead of the entire ACL itself...

  Standard note of access-list (config) #ip

  (config-std-nacl) #no 3

  This configuration lines will remove the third line only (which is to allow the 192.168.1.0 0.0.0.255, leaving the other statements)

  regds

• Securing of Captivate movies and access via the Web

  Hi all
  
  My apologies if this is a little off topic, but I just thought that someone out there has fallen on this problem and come upwards with a solution. All the tips / pointers thank you gratefully received!
  
  I would create a bunch of Captivate movies that will be accessible on the web. Different customers/clients need to access different movies. What I would really like to be able to do is post these movies on my site OR a site offering secure accommodation.
  
  The customer would be given a URL - when you can access the URL, they are going to a login page (and provide a password), and then be presented with a start page / menu where they can access movies that relate to the software they use (customers all use different versions of the software as well as movies are subtly different for each).
  
  A grave on this type of hosting solution or has any ideas for this scenario?
  
  Thank you very much
  Craig

  Craig,
  I think you have the wrong end of the stick about htaccess
  I made a small example for you here protected folder
  username and password = larry

  a good host is http://ukwebsolutionsdirect.co.uk/hosting.php
  I use them for all my domains/site and they are cheap

  Paul

• LAN ASA 5505 VPN client access issue

  Hello

  I'm no expert in ASA and routing so I ask support the following case.

  There is a (running on Windows 7) Cisco VPN client and an ASA5505.

  The objectives are client can use the gateway remote on SAA for Skype and able to access devices in SAA within the interface.

  The Skype works well, but I can't access devices in the interface inside through a VPN connection.

  Can you please check my following config and give me any advice to fix NAT or VPN settings?

  ASA Version 7.2 (4)

  !

  ciscoasa hostname

  domain default.domain.invalid

  activate wDnglsHo3Tm87.tM encrypted password

  2KFQnbNIdI.2KYOU encrypted passwd

  names of

  !

  interface Vlan1

  nameif inside

  security-level 100

  IP 192.168.1.1 255.255.255.0

  !

  interface Vlan2

  nameif outside

  security-level 0

  IP address dhcp setroute

  !

  interface Vlan3

  prior to interface Vlan1

  nameif dmz

  security-level 50

  no ip address

  !

  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

  !

  passive FTP mode

  DNS server-group DefaultDNS

  domain default.domain.invalid

  permit same-security-traffic inter-interface

  permit same-security-traffic intra-interface

  inside_access_in list extended access permitted tcp 192.168.1.0 255.255.255.0 any

  inside_access_in list extended access permitted udp 192.168.1.0 255.255.255.0 any

  outside_access_in list of allowed ip extended access entire 192.168.1.0 255.255.255.0

  pager lines 24

  Enable logging

  asdm of logging of information

  Within 1500 MTU

  Outside 1500 MTU

  MTU 1500 dmz

  local pool VPNPOOL 10.0.0.200 - 10.0.0.220 255.255.255.0 IP mask

  ICMP unreachable rate-limit 1 burst-size 1

  ASDM image disk0: / asdm - 524.bin

  don't allow no asdm history

  ARP timeout 14400

  NAT-control

  Global 1 interface (outside)

  NAT (inside) 1 10.0.0.0 255.255.255.0

  NAT (inside) 1 192.168.1.0 255.255.255.0

  NAT (outside) 1 10.0.0.0 255.255.255.0

  inside_access_in access to the interface inside group

  Access-group outside_access_in in interface outside

  Timeout xlate 03:00

  Timeout conn 01:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02

  Sunrpc timeout 0:10:00 h323 0:05:00 h225 mgcp from 01:00 0:05:00 mgcp-pat 0:05:00

  Sip timeout 0:30:00 sip_media 0:02:00 prompt Protocol sip-0: 03:00 sip - disconnect 0:02:00

  Timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute

  the ssh LOCAL console AAA authentication

  Enable http server

  http 192.168.1.0 255.255.255.0 inside

  No snmp server location

  No snmp Server contact

  Server enable SNMP traps snmp authentication linkup, linkdown cold start

  Crypto ipsec transform-set esp-SHA-ESP-3DES-3des esp-sha-hmac

  Crypto-map dynamic outside_dyn_map pfs set 20 Group1

  Crypto-map dynamic outside_dyn_map 20 the value transform-set ESP-3DES-SHA

  map outside_map 65535-isakmp ipsec crypto dynamic outside_dyn_map

  outside_map interface card crypto outside

  crypto ISAKMP allow outside

  crypto ISAKMP policy 10

  preshared authentication

  3des encryption

  sha hash

  Group 2

  life 86400

  Telnet timeout 5

  SSH 192.168.1.0 255.255.255.0 inside

  SSH timeout 5

  SSH version 2

  Console timeout 0

  dhcpd outside auto_config

  !

  dhcpd address 192.168.1.2 - 192.168.1.33 inside

  dhcpd dns xx.xx.xx.xx interface inside

  dhcpd allow inside

  !

  attributes of Group Policy DfltGrpPolicy

  No banner

  WINS server no

  value of server DNS 84.2.44.1

  DHCP-network-scope no

  VPN-access-hour no

  VPN - connections 3

  VPN-idle-timeout 30

  VPN-session-timeout no

  VPN-filter no

  Protocol-tunnel-VPN IPSec l2tp ipsec webvpn

  disable the password-storage

  disable the IP-comp

  Re-xauth disable

  Group-lock no

  disable the PFS

  IPSec-udp disable

  IPSec-udp-port 10000

  Split-tunnel-policy tunnelall

  Split-tunnel-network-list no

  by default no

  Split-dns no

  Disable dhcp Intercept 255.255.255.255

  disable secure authentication unit

  disable authentication of the user

  user-authentication-idle-timeout 30

  disable the IP-phone-bypass

  disable the leap-bypass

  allow to NEM

  Dungeon-client-config backup servers

  MSIE proxy server no

  MSIE-proxy method non - change

  Internet Explorer proxy except list - no

  Disable Internet Explorer-proxy local-bypass

  disable the NAC

  NAC-sq-period 300

  NAC-reval-period 36000

  NAC-by default-acl no

  address pools no

  enable Smartcard-Removal-disconnect

  the firewall client no

  rule of access-client-none

  WebVPN

  url-entry functions

  HTML-content-filter none

  Home page no

  4 Keep-alive-ignore

  gzip http-comp

  no filter

  list of URLS no

  value of customization DfltCustomization

  port - forward, no

  port-forward-name value access to applications

  SSO-Server no

  value of deny message connection succeeded, but because some criteria have not been met, or because of a specific group policy, you are not allowed to use the VPN features. Contact your administrator for more information

  SVC no

  SVC Dungeon-Installer installed

  SVC keepalive no

  generate a new key SVC time no

  method to generate a new key of SVC no

  client of dpd-interval SVC no

  dpd-interval SVC bridge no

  deflate compression of SVC

  internal group XXXXXX strategy

  attributes of XXXXXX group policy

  Protocol-tunnel-VPN IPSec

  Split-tunnel-policy tunnelall

  Split-tunnel-network-list no

  XXXXXX G910DDfbV7mNprdR encrypted privilege 15 password username

  username password encrypted XXXXXX privilege 0 5p9CbIe7WdF8GZF8

  attributes of username XXXXXX

  Strategy Group-VPN-XXXXXX

  username privilege 15 encrypted password cRQbJhC92XjdFQvb XXXXX

  tunnel-group XXXXXX type ipsec-ra

  attributes global-tunnel-group XXXXXX

  address VPNPOOL pool

  Group Policy - by default-XXXXXX

  tunnel-group ipsec-attributes XXXXXX

  pre-shared-key *.

  !

  class-map inspection_default

  match default-inspection-traffic

  !

  !

  type of policy-card inspect dns preset_dns_map

  parameters

  message-length maximum 512

  Policy-map global_policy

  class inspection_default

  inspect the preset_dns_map dns

  inspect the ftp

  inspect h323 h225

  inspect the h323 ras

  inspect the rsh

  inspect the rtsp

  inspect esmtp

  inspect sqlnet

  inspect the skinny

  inspect sunrpc

  inspect xdmcp

  inspect the sip

  inspect the netbios

  inspect the tftp

  inspect the icmp

  !

  global service-policy global_policy

  context of prompt hostname

  Cryptochecksum:a8fbb51b0a830a4ae823826b28767f23

  : end

  ciscoasa #.

  Thanks in advance!

  fbela

  config #no nat (inside) 1 10.0.0.0 255.255.255.0< this="" is="" not="">

  Add - config #same-Security-permit intra-interface

  #access - extended list allowed sheep ip 192.168.1.0 255.255.255.0 10.0.0.0 255.255.255.0

  #nat (inside) 0 access-list sheep

  Please add and test it.

  Thank you

  Ajay

• VPN on ASA 5506 without internet access, help with NAT?

  Hello

  I have upgraded to a Cisco ASA 5505 to a 5506 X and as such have climbed to ASA 9.5

  For this reason, I'm a bit stuck on how to implement the VPN. I followed the wizard and I can now establish inbound connections, but when connected (all traffic is tunnel) there is no internet connectivity.

  Our offices internal (inside) network is 192.168.2.0/24

  Our VPN pool is 192.168.4.0/24

  I guess that I'm missing a NAT rule, but in all honesty, I'm a user ASDM and as everything is changed, I am struggling to recreate it?

  Here is my config:

  Result of the command: "sh run"
  
  : Saved
  
  :
  : Serial Number: JAD194306H5
  : Hardware:   ASA5506, 4096 MB RAM, CPU Atom C2000 series 1250 MHz, 1 CPU (4 cores)
  :
  ASA Version 9.5(1)
  !
  hostname ciscoasanew
  domain-name work.internal
  enable password ... encrypted
  names
  ip local pool RemoteVPNPool 192.168.4.1-192.168.4.254 mask 255.255.255.0
  !
  interface GigabitEthernet1/1
   nameif outside
   security-level 0
   ip address 192.168.3.4 255.255.255.0
  !
  interface GigabitEthernet1/2
   nameif inside
   security-level 100
   ip address 192.168.2.197 255.255.255.0
  !
  interface GigabitEthernet1/3
   shutdown
   no nameif
   no security-level
   no ip address
  !
  interface GigabitEthernet1/4
   shutdown
   no nameif
   no security-level
   no ip address
  !
  interface GigabitEthernet1/5
   shutdown
   no nameif
   no security-level
   no ip address
  !
  interface GigabitEthernet1/6
   shutdown
   no nameif
   no security-level
   no ip address
  !
  interface GigabitEthernet1/7
   shutdown
   no nameif
   no security-level
   no ip address
  !
  interface GigabitEthernet1/8
   shutdown
   no nameif
   no security-level
   no ip address
  !
  interface Management1/1
   management-only
   nameif management
   security-level 100
   ip address 192.168.1.1 255.255.255.0
  !
  ftp mode passive
  clock timezone GMT 0
  dns domain-lookup inside
  dns domain-lookup management
  dns server-group DefaultDNS
   name-server 192.168.2.199
   domain-name work.internal
  same-security-traffic permit inter-interface
  same-security-traffic permit intra-interface
  object network obj_any
   subnet 0.0.0.0 0.0.0.0
  object network 173.0.82.0
   host 173.0.82.0
  object network 173.0.82.1
   subnet 66.211.0.0 255.255.255.0
  object network 216.113.0.0
   subnet 216.113.0.0 255.255.255.0
  object network 64.4.0.0
   subnet 64.4.0.0 255.255.255.0
  object network 66.135.0.0
   subnet 66.135.0.0 255.255.255.0
  object network a
   host 192.168.7.7
  object network devweb
   host 192.168.2.205
  object network DevwebSSH
   host 192.168.2.205
  object network DEV-WEB-SSH
   host 192.168.2.205
  object network DEVWEB-SSH
   host 192.168.2.205
  object network vpn-network
   subnet 192.168.4.0 255.255.255.0
  object network NETWORK_OBJ_192.168.4.0_24
   subnet 192.168.4.0 255.255.255.0
  object network NETWORK_OBJ_192.168.2.0_24
   subnet 192.168.2.0 255.255.255.0
  object-group network EC2ExternalIPs
   network-object host 52.18.73.220
   network-object host 54.154.134.173
   network-object host 54.194.224.47
   network-object host 54.194.224.48
   network-object host 54.76.189.66
   network-object host 54.76.5.79
  object-group network PayPal
   network-object object 173.0.82.0
   network-object object 173.0.82.1
   network-object object 216.113.0.0
   network-object object 64.4.0.0
   network-object object 66.135.0.0
  object-group service DM_INLINE_SERVICE_1
   service-object icmp
   service-object icmp6
   service-object icmp alternate-address
   service-object icmp conversion-error
   service-object icmp echo
   service-object icmp information-reply
   service-object icmp information-request
  access-list outside_access_in extended permit tcp object-group EC2ExternalIPs object DEVWEB-SSH eq ssh
  access-list outside_access_in remark AWS Servers
  access-list outside_access_in extended permit tcp object-group EC2ExternalIPs object devweb eq ssh log debugging inactive
  access-list outside_access_in extended permit ip any any inactive
  access-list outside_access_in remark Ping reply
  access-list outside_access_in extended permit object-group DM_INLINE_SERVICE_1 any interface outside
  access-list outside_access_in remark Alarm
  access-list outside_access_in extended permit tcp any interface outside eq 10001
  access-list outside_access_in remark CCTV
  access-list outside_access_in extended permit tcp any interface outside eq 7443
  access-list outside_access_in extended deny ip any any
  access-list workvpn_splitTunnelAcl_1 standard permit 192.168.2.0 255.255.255.0
  access-list workvpn_splitTunnelAcl_1 standard permit 162.13.130.12 255.255.255.252
  access-list workvpn_splitTunnelAcl_1 standard permit 162.13.133.72 255.255.255.252
  access-list workvpn_splitTunnelAcl_1 standard permit 164.177.128.200 255.255.255.252
  access-list workvpn_splitTunnelAcl_1 standard permit 164.177.132.16 255.255.255.252
  access-list workvpn_splitTunnelAcl_1 standard permit 164.177.132.72 255.255.255.252
  access-list workvpn_splitTunnelAcl_1 standard permit 212.64.147.184 255.255.255.248
  access-list workvpn_splitTunnelAcl_1 standard permit 95.138.147.116 255.255.255.254
  access-list workvpn_splitTunnelAcl_1 standard permit 95.138.147.118 255.255.255.254
  access-list workvpn_splitTunnelAcl_1 standard permit host 95.138.147.118
  access-list workvpn_splitTunnelAcl_1 standard permit 95.138.147.120 255.255.255.254
  access-list inside_nat0_outbound extended permit ip 192.168.2.0 255.255.255.0 192.168.4.0 255.255.255.0
  access-list workvpn2_splitTunnelAcl standard permit 192.168.2.0 255.255.255.0
  access-list workVPN2016_splitTunnelAcl standard permit 192.168.2.0 255.255.255.0
  pager lines 24
  logging enable
  logging buffer-size 16000
  logging asdm-buffer-size 512
  logging asdm warnings
  logging flash-bufferwrap
  mtu outside 1500
  mtu inside 1500
  mtu management 1500
  icmp unreachable rate-limit 1 burst-size 1
  no asdm history enable
  arp timeout 7200
  no arp permit-nonconnected
  nat (inside,outside) source static NETWORK_OBJ_192.168.2.0_24 NETWORK_OBJ_192.168.2.0_24 destination static NETWORK_OBJ_192.168.4.0_24 NETWORK_OBJ_192.168.4.0_24 no-proxy-arp route-lookup
  !
  object network obj_any
   nat (any,outside) dynamic interface
  object network DEVWEB-SSH
   nat (inside,outside) static interface service tcp ssh ssh
  access-group outside_access_in in interface outside
  route outside 0.0.0.0 0.0.0.0 192.168.3.3 1
  timeout xlate 3:00:00
  timeout pat-xlate 0:00:30
  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
  timeout floating-conn 0:00:00
  user-identity default-domain LOCAL
  http server enable
  http 192.168.1.0 255.255.255.0 inside
  http 192.168.2.0 255.255.255.0 inside
  no snmp-server location
  no snmp-server contact
  service sw-reset-button
  crypto ipsec ikev1 transform-set ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac
  crypto ipsec ikev1 transform-set ESP-DES-SHA esp-des esp-sha-hmac
  crypto ipsec ikev1 transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
  crypto ipsec ikev1 transform-set ESP-DES-MD5 esp-des esp-md5-hmac
  crypto ipsec ikev1 transform-set ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac
  crypto ipsec ikev1 transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac
  crypto ipsec ikev1 transform-set ESP-AES-256-SHA esp-aes-256 esp-sha-hmac
  crypto ipsec ikev1 transform-set ESP-AES-128-SHA esp-aes esp-sha-hmac
  crypto ipsec ikev1 transform-set ESP-AES-192-SHA esp-aes-192 esp-sha-hmac
  crypto ipsec ikev1 transform-set ESP-AES-128-MD5 esp-aes esp-md5-hmac
  crypto ipsec security-association pmtu-aging infinite
  crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set pfs group1
  crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set ikev1 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 SYSTEM_DEFAULT_CRYPTO_MAP
  crypto map outside_map interface outside
  crypto ca trustpoint _SmartCallHome_ServerCA
   no validation-usage
   crl configure
  crypto ca trustpoint ASDM_Launcher_Access_TrustPoint_0
   enrollment self
   fqdn none
   subject-name CN=192.168.2.197,CN=ciscoasanew
   keypair ASDM_LAUNCHER
   crl configure
  
  snip
  
  dhcpd auto_config outside
  !
  dhcpd address 192.168.1.2-192.168.1.254 management
  dhcpd enable management
  !
  no 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
  ssl trust-point ASDM_Launcher_Access_TrustPoint_0 inside
  ssl trust-point ASDM_Launcher_Access_TrustPoint_0 inside vpnlb-ip
  group-policy DfltGrpPolicy attributes
   vpn-tunnel-protocol ssl-client
  group-policy workVPN2016 internal
  group-policy workVPN2016 attributes
   dns-server value 192.168.2.199
   vpn-tunnel-protocol ikev1
   split-tunnel-policy tunnelall
   ipv6-split-tunnel-policy tunnelall
   default-domain value work.internal
   split-dns value work.internal
   split-tunnel-all-dns enable
  dynamic-access-policy-record DfltAccessPolicy
  
  !
  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 rsh
    inspect rtsp
    inspect esmtp
    inspect sqlnet
    inspect skinny
    inspect sunrpc
    inspect xdmcp
    inspect sip
    inspect netbios
    inspect tftp
    inspect ip-options
  !
  service-policy global_policy global
  prompt hostname context
  call-home reporting anonymous
  hpm topN enable
  Cryptochecksum:
  : end
  

  Hi Ben-

  What you are trying to accomplish is called VPN crossed.  Depending on your initial configuration, you have 2 NAT problems.  The first has to do with the NAT you place your order.  In the code later that we are dealing with two NAT ASA 8.3 times and who are ranked 2 sections going on before and after the device NAT. object

  My general rule for control of NAT is like this:

  1. Twice NAT (front) - use this section for exemptions from NAT or unusual configurations that have to go first
  2. Purpose of NAT - Use this section to the static NAT instructions for servers
  3. Twice NAT (after) - use this section to your global declarations of NAT, basically a catch-all

  Then, never use 'all' as an interface for all training of NAT.  This may seem like a good idea, but it will bite you.  Remember, it is more the notion of control NAT, then 'all' interface is bit VPN configurations and similar DMZ.  Always be specific about your interface for NAT pairs.

  To this end, here is what I suggest that your NAT configuration should resemble:

  nat (inside,outside) source static NETWORK_OBJ_192.168.2.0_24 NETWORK_OBJ_192.168.2.0_24 destination static NETWORK_OBJ_192.168.4.0_24 NETWORK_OBJ_192.168.4.0_24 no-proxy-arp route-lookup!object network DEVWEB-SSH nat (inside,outside) static interface service tcp ssh ssh !nat (inside,outside) after-auto source dynamic any interfacenat (outside,outside) after-auto source dynamic any interface

  The key is that you need a NAT device explicitly reflecting the VPN traffic. PSC

• tunnel upward but not ping of the asa inside interface

  Dear all

  I am establishing a tunnel vpn between cisco asa 5510 and a cisco router. The tunnel is up, and I can ping both cryptographic interfaces. Also, from the console of the asa I can ping to the router lan interface but the router I can not ping the lan interface of the asa, this message appears in the log

  % ASA-3-713042: unable to find political initiator IKE: Intf liaison_BLR, Src: 128.2

  23.125.232, DST: 129.223.123.234

  Here is the config of the equipment.

  I was able to successfully establish an ipsec with an another ROUTER 1841 tunnel. I have 1 hub site and 3 remotes sites with asa as a hub.

  Help, please.

  Your crypto that ACLs are not matching. They must be exact mirror of the other.

  In addition, you can consider setting the levels of security for the interfaces. They are all at 0. The value internal/private those a higher value.

  Let me know how it goes.

  PS. If you find this article useful, please note it.

• monitor the ASA remote site and allow the ACS to authenticate

  Hi all

  I have a VPN site to set up and works fine, but am struggling to get two things configured, hope can get help from you all

  I need to monitor the ASA distance of my HQ, I use kulvik with snmp, but I am afraid if he would be a threat if I open snmp on my external interface

  'access-list extended permitted snmp 20.x.x.x 19.x.x.x acl_outside' - is this safe

  my configuration:

  Remote

  10.8.0.0/20---ASA---Internet---ASA---10.0.0.0

  I was wondering is it otherwise I get my remote ASA monitored

  My next challenge is to add GANYMEDE ASA configuration, my CSA is 10.6.1.186 that can be reached from LAN(10.8.0.0/20) remote, but not the ASA because of politics, how can I get this to work

  I searched how to add the source interface in config GANYMEDE but couldn't get

  Thank you very much for the support

  See you soon...

  For the interface you want to use, can you pls add the following command:

  access to the administration

  For example:

  access to the administration server - vlan

  or

  access to data management - vlan

  You can only configure 1 interface for the management interface.

• Error installing Adobe Creative cloud due to cannot connect to the server. No firewall, no restrictions access app without anti virus blocking &amp; Port is clear.

  Hi, I encountered error to download cloud creative adobe. For your information, I do firewall, port and access app like the app if you need level. But I am still experiencing installation error (Trying to connect to the server).

  I also downloaded the latest version of the cloud creative and reinstalled (I erased all the previous installed version of creative cloud who happened to have the same mistake to where I can't connect into consideration due to unable to connect error adobe server)

  Please advise because I bought a package of creative software to begin work as soon as possible.

  

  

  Are you looking for a fast feedback today because I can't do my job and everything has been delayed.

  Note of course: I used the creative cloud before this and he happened to have an error (unable to connect to the server from adobe), so I can not connect to the creative cloud. In this case, I uninstalled and reinstalled (using the latest version downloaded or old installers).

  There are so many invisible problem that this can... I realized by myself trying anyway possible associated with actual client errors (instead of strategy/connectivity issues pc & network).

  The solution that you have shared is incorrect, as I mentioned in my post above, I released my linking strategy and etc and the problem well obviously a customer source of creative cloud adobe itself.

  Furthermore, I solved the problem.

• Effect of the access lists on free access of high to low by default

  I'll implement access rules list on PIX525 (V6.3) with several DMZ, but want to minimize the rules.

  Scenario - 3 interfaces (inside (secuity100, average security50 outside Security0)

  To allow hosts on the way to reach the inside I create an access list applied to a central interface. However, will be an implicit (or explicit) deny at the end of the access list prevents the intermediate hosts with default value to open access to the lower security outside the interface?

  Thank you

  Mick

  Level of security and access lists:

  To grant access of lower to higher level, you need to an access list and a static.

  Equal to equal level cannot talk to each other.

  Higher level of security can talk to lower levels, if there is no access on this interface list and the NAT is configured correctly.

  ACL will add at the end a "deny ip any any" after a statement of license. So getting back to your question: If you allow a DMZ host to connect internal host on a specific port that all other connections are blocked. You must specify all the tarffic in this access list otherwise they will be blocked.

  The only exception is the traffic may be from other interface access lists to the demilitarized zone, answers etc. For example, you are allowing port 80 to a dmz host outside this traffic will not be verified again by the dmz access list.

  sincerely

  Patrick

• Public static NAT vs. Access-List

  Hello

  I have a question what is the best practice static NAT and access list. Example:

  Server (192.168.1.1) Web inside to outside (10.10.10.10) with the port 80 and 443.

  IP nat inside source static tcp 192.168.1.1 80 10.10.10.10 80

  IP nat inside source static tcp 192.168.1.1 10.10.10.10 443 443

  Or

  IP nat inside source static 192.168.1.1 10.10.10.10

  Access-list 101 permit tcp any host 10.10.10.10 eq 80

  Access-list 101 permit tcp any host 10.10.10.10 eq 443

  interface ethernet0
  IP access-group 101 in

  Thank you

  The operational reasons - it will break things.

• ASA - same-security-traffic allowed inter VS permit/deny access-list interface

  Hi people,

  I wonder if I use the same-security-traffic permits inter-interface order to ASA and I have 2 separate interfaces with the same level of security and ACL with a few rules explicit allow , if not covered by these statements to allow traffic will be blocked by implicit deny at the end of the ACL or am I completely wrong in my thinking?

  That is right.

  But then if you have an interface with an ACL and another interface without an ACL and you want to pass traffic between the two interfaces, then the interface without an ACL will rely on the level of security while configured with the ACL interface will rely on configured ACL entries.

  --

  Please do not forget to select a correct answer and rate useful posts