LRT224 DMZ ACL

Similar Questions

• DMZ out OK; inside problems

  I have a Web server on a demilitarized zone which I want to access the inside network.

  Currently, I can access Internet from the DMZ Web server, the Web server of the Internet and the Web server would form inside.

  Access one another inside the machine while ssh would be in the Web server is that I can't do.

  This Web server will snapped a FTP mirror on the inside so I need this access.

  I've searched the forums and found several relevant examples, but the solutions have not worked for me.

  The example that I found was:

  +++

  "For the mail server (or any host on the DMZ) to access the inside to do the following:

  static (inside, dmz) 128.100.0.0 128.100.0.0 255.255.0.0 subnet mask

  fromDMZ list of allowed access host ip 192.168.0.2 128.100.0.0 255.255.0.0

  Access-group fromDMZ in dmz interface

  and for the zone demilitarized for access from the outside to do:

  "NAT (dmz) 1 192.168.0.0 255.255.255.0.

  +++

  If I activate the access on the DMZ interface group, I lose outside connectivity...?

  I currently have no liaison group on this CASE.

  Here are my relevant configuration lines:

  access-list 100 permit tcp any host 206.xxx.xxx.xxx eq www

  access-list 100 permit tcp any host 206.xxx.xxx.xxx eq ssh

  access-list 100 permit tcp any host 206.xxx.xxx.xxx eq ftp

  When I try to access machine and inside the demilitarized zone, I get the following error on the server logs:

  Incoming TCP connection deny from 10.xxx.xxx.xxx/1152 to 192.168.xxx.xxx/22 SYN flags on DMZ interface.

  static (DMZ, external) 206.xxx.xxx.xxx piggy netmask 255.255.255.255 0 0

  static (inside, DMZ) piggy Notes netmask 255.255.255.255 0 0

  FDPNATICK-2 FDPNATICK-2 static (inside, DMZ) mask of 255.255.0.0 subnet 0 0

  206 ~ is the range outside.

  192.168 ~ inside

  10 ~ is DMZ

  "piggy" is the DMZ server.

  'Notes' are I want to connect to the FTP server.

  TIA

  I think that the solution you found on the net was the right. You have lost connectivity to the outside because the access group you have applied has an invisible specific ip deny everything at the bottom of this one. As soon as you have applied it, it allowed your DMZ inside because you put it in the acl, but you did not reference for your dmz be allowed outside, what is needed now that you have a list of access applied to your dmz interface. Your static and Nat seems good, just make the changes to your dmz acl to allow the incoming connection and the connection outdoors. Take note of this source for your ACLs on dmz will be your dmz hosts and destination will be on the outside.

• There is a security risk to plug the internet router management on the LAN port?

  I have to install an ASR1001 on the internet for my business.  I noticed that the ASR1001 has a dedicated management port and I was wondering if it's a security risk to have this mangment port directly connected to my local network, so that I can mange it from my office.

  I want to only run the ASR of this port and I will no management through its public IP address.  Is it possible for a malicious user to compromise the router then have access to the network but this management port?

  I'd say it's a reasonable risk.  If you intend not to allow future management of the public side sessions you are a good start, implementation of protection against attacks.  Combine that with a few basic hardening, for example to disable source routing, directed broadcast, ip proxy arp, finger, as well as an ACL on the management interface so that all traffic from an untrusted interface on the router would be unable to receive return traffic.  In addition, the management vlan must be a dedicated vlan.  I would not fall in the same vlan in that your office is located.  Better design would be to fall into a dmz (acl on the router's management interface would be redundant in this case) and to apply the rules of the firewall.  However, if this is not possible, order access to routing on the ASR as well by including only a 32 road to your management station via the management VLAN interface.  Also, remove any redisribution or advertising of this management interface in your routing protocol.

• SSL vpn through the same internet connection to another site

  Hi, I have a network with a box of Juniper SSL that connect to port DMZ ASA5510, wher outside the ASA is the same outside the box of SSL vpn.

  To access issues eno hav network internal at all.

  Now, I need VPN SSL Juniper box remote users and internal conenct o my remote sites, who take the client connection through an internet router (Cisco throug site to site vpn IPSec) again to the th eremote site.

  Is it possible, my hunch is Yes "can be done."

  Currently, I'm fitting get no where, I get no hits ASA DMZ ACL if I try to access the remote site of the SSL vpn client resources.

  Schema attached

  Any help would be appreciated

  Shouldn't be a problem.

  On the Juniper SSL, you must check if the roads has been added to the remote IPSec LAN point to the ip address DMZ ASA instead of pointing to the internet through the Juniper SSL box.

  You need to configure NAT exemption on the ASA box between the pool SSL subnet to the Remote LAN of IPSec. As a result, you must also include the SSL subnet to Remote LAN subnets in the crypto ACL and mirror image ACL on the remote site ACL Cryptography.

  Hope that helps.

• no nat without static configuration?

  I've dealt with pix for nearly 2 years and always thought of myself as a beginner at home.

  Can someone take a look at the configuration below and tell me if this Setup will work?

  Basically it's a completely private network, no nat and network access control (until my client has finalize their security policy)

  The configuration of my previous pix of work used static commands, ACL, but I thought that the configuration below does not have any command static since I have applied ACL on each pix interface and completely disable NAT.

  6.2 (2) version PIX

  ethernet0 nameif outside security0

  nameif ethernet1 inside the security100

  nameif dmz security80 ethernet2

  nameif ethernet3 dev security60

  nameif ethernet4 ras security40

  ethernet5 failover security20 nameif

  external IP 10.3.0.2 255.255.255.0

  IP address inside 10.0.1.1 255.255.255.0

  10.5.0.1 dmz IP address 255.255.255.0

  IP address dev 10.1.4.1 255.255.255.0

  IP ras address 10.9.0.1 255.255.0.0

  172.16.0.1 IP address failover 255.255.255.0

  no-nat-all of the ip access list allow a whole

  access list outside-acl permit ip 10.0.0.0 255.0.0.0 10.5.0.0 255.255.255.0

  access list acl outside ip 10.6.0.0 allow 255.255.0.0 10.1.4.0 255.255.255.0

  access list outside-acl deny ip 10.0.0.0 255.0.0.0 10.1.4.0 255.255.255.0

  access list acl outside ip allow any 10.1.4.0 255.255.255.0

  access to the Interior-acl ip 10.0.1.0 list allow 255.255.255.0 10.5.0.0 255.255.255.0

  access to the Interior-acl ip 10.0.1.0 list allow 255.255.255.0 10.1.4.0 255.255.255.0

  10.1.4.0 IP Access-list dev - acl 255.255.255.0 allow 10.0.1.0 255.255.255.0

  10.1.4.0 IP Access-list dev - acl 255.255.255.0 allow 10.5.0.0 255.255.255.0

  Allow Access-list dev - acl 255.255.255.0 10.1.4.0 IP 10.9.0.0 255.255.0.0

  10.1.4.0 IP Access-list dev - acl 255.255.255.0 allow 10.6.0.0 255.255.255.0

  Allow Access-list dev - acl icmp a whole

  access-list dev - acl deny ip 10.1.4.0 255.255.255.0 10.0.0.0 255.0.0.0

  dev - ip access list acl allow a whole

  DMZ - acl access-list deny ip 10.5.0.0 255.255.255.0 10.6.0.0 255.255.255.0

  DMZ - acl access-list deny ip 10.5.0.0 255.255.255.0 10.9.0.0 255.255.255.0

  DMZ - acl access-list allowed 10.5.0.0 ip 255.255.255.0 10.0.0.0 255.0.0.0

  DMZ - acl access-list deny ip any one

  ras - acl 10.9.0.0 ip access list allow 255.255.0.0 10.1.4.0 255.255.255.0

  NAT (outside) - access list 0 non-nat-all

  NAT (inside) - access list 0 non-nat-all

  NAT (dmz) 0-list of no-nat-all access

  NAT (dev) 0-list of no-nat-all access

  (Ras) NAT 0-list of no-nat-all access

  Access-group acl outside in external interface

  group-access Interior-acl in the interface inside

  Access-group dmz - acl in the dmz interface

  Access-group dev - acl in interface dev

  Access-group acl ras flush with the interface

  Route outside 0.0.0.0 0.0.0.0 10.3.0.254 1

  Hello

  This configuration seems perfectly fine. You can use either static or NAT 0 with access to access the interface more list high. It's exactly what you're doing.

  Rgds,

  Desh

• Does not work from inside the DMZ after configuring the ACL.

  Hello

  According to the concept of ASA, trafuc of the Interior (100 s) DMZ (50 Sec) is allowed by default. When I try to write an acl (host to host block) on the Interface inside, no other traffic runs to and from the Interface on the inside.

  Everything is blocked. Previously no ACL has been mapped to the inside Interface.

  Kindly help me to solve this problem and also provide the document concerning the behavior of the firewall before and after configuring the ACL.

  Poster of the acl that you entered. Remember, there is an explicit deny a whole at the end of the acl. So if you want only to prevent access to a dmz machine, then it must be written correctly. Leave what you want enable dmz, deny the rest of the demilitarized zone, and then leave all the rest.

• VLAN ACL M4100

  Dear Sir

  We want to create an access list to isolate our Wifi network invited all the other vlan.
  When I do, diseapper of the other SSID of our laptops.

  I applied to the access list to our direction to SVI comments in

  ! Description of the system "M4100 - 24 G - POE + ProSafe 24 port Gigabit L2 + Managed Switch w ith PoE +, 10.0.2.13, B1.0.1.1"
  ! Version of the software system "10.0.2.13".
  ! System Up Time "28 days 22 hours 39 minutes 58 seconds"
  ! Other packets QOS, IPv6, routing
  ! Current SNTP synchronized time: SNTP last attempt status is not successful
  !
  database of VLAN
  VLAN 99 200-208 455-456 999
  VLAN 99 name 'TEST '.
  name of VLAN 200 'Clients '.
  name of VLAN 201 "Telefonie.
  name of VLAN 202 "guest."
  name of VLAN 203 'fr '.
  the name of VLAN 204 "TD."
  VLAN name 205 "DMZ".
  VLAN name 206 'printers '.
  VLAN name 207 'media '.
  VLAN 208 name 'Wireless '.
  VLAN name 999 "3com".
  VLAN 1 1 routing
  -Other - or ITU (q)
  VLAN 200 2 routing
  VLAN 201 3 routing
  VLAN routing 202 4
  VLAN routing 5 203
  VLAN routing 204 6
  VLAN routing 205 7
  VLAN routing 206 8
  VLAN routing 9 207
  VLAN routing 10 208
  VLAN routing 11 455
  VLAN routing 12 456
  VLAN routing 99 13
  output

  network mgmt_vlan 203
  IP http secure server
  Configure
  time range
  default IP gateway - 10.253.255.1
  level of 483f42190380e8780a9d32a3c63d31b86d6ad49b870db8306af86a9ce3e06cd9a39f66e666e86f0aaab777b0ab9fe571908247c31d904463d1a0767400f8e763 user name 'admin' password encrypted 15
  level password user name "secit" encrypted 15 912ba98d721224814ea15db6dec1701819e75dfcafa635831e9eab148c105c20ba85dc61882dd47a65eb66dff6cf0005a1a2232b6957ec898cd6187c6bdbb510
  line console
  output
  -Other - or ITU (q)

  line telnet
  output

  ssh line
  output

  spanning tree bpduguard

  !

  IP access-list ACL_Wizard_IPv4_0
  output

  IP access-list Deny_Guest_Intervlan_Routing
  deny ip 10.253.2.0 0.0.0.255 10.253.0.0 0.0.0.255
  deny ip 10.253.2.0 0.0.0.255 10.253.1.0 0.0.0.255
  deny ip 10.253.2.0 0.0.0.255 10.253.3.0 0.0.0.255
  deny ip 10.253.2.0 0.0.0.255 10.253.4.0 0.0.0.255
  deny ip 10.253.2.0 0.0.0.255 10.253.5.0 0.0.0.255
  deny ip 10.253.2.0 0.0.0.255 10.253.6.0 0.0.0.255
  -Other - or ITU (q)
  deny ip 10.253.2.0 0.0.0.255 10.253.7.0 0.0.0.255
  deny ip 10.253.2.0 0.0.0.255 10.253.8.0 0.0.0.255
  deny ip 10.253.2.0 0.0.0.255 10.253.9.0 0.0.0.255
  deny ip 10.253.2.0 0.0.0.255 10.253.11.0 0.0.0.255
  IP 10.253.2.0 allow 0.0.0.255 0.0.0.0 0.0.0.0
  output

  class-map correspondence ClassVoiceVLAN ipv4
  game of vlan 201
  output

  Policy-map PolicyVoiceVLAN in
  class ClassVoiceVLAN
  Assign-queue 3
  output

  output

  interface 0/1
  Description "ACCESSPORTS.
  participation of VLAN include 200-201
  VLAN tagging 201
  -Other - or ITU (q)
  output

  interface 0/2
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  bandwidth 1000000
  pvid VLAN 200
  participation of VLAN include 200-201
  VLAN tagging 201
  IP mtu 1500
  output

  interface 0/3
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  bandwidth 100000
  pvid VLAN 200
  participation of VLAN include 200-201 204
  VLAN tagging 201
  -Other - or ITU (q)
  IP mtu 1500
  output

  interface 0/4
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  bandwidth 100000
  pvid VLAN 200
  participation of VLAN include 200-201
  VLAN tagging 201
  IP mtu 1500
  output

  interface 0/5
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  bandwidth 1000000
  pvid VLAN 99
  participation of VLAN include 99 200 - 201
  -Other - or ITU (q)
  VLAN tagging 201
  IP mtu 1500
  output

  interface 0/6
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  bandwidth 100000
  pvid VLAN 200
  participation of VLAN include 200-201
  VLAN tagging 201
  IP mtu 1500
  output

  interface 0/7
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  Description "ACCESSPORTS.
  pvid VLAN 203
  -Other - or ITU (q)
  participation of VLAN include 200-201
  VLAN tagging 201
  output

  0/8 interface
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  bandwidth 100000
  pvid VLAN 200
  participation of VLAN include 200-201
  VLAN tagging 201
  IP mtu 1500
  output

  interface 0/9
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  bandwidth 100000
  pvid VLAN 200
  -Other - or ITU (q)
  participation of VLAN include 200-201
  VLAN tagging 201
  IP mtu 1500
  output

  interface 0/10
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  bandwidth 100000
  pvid VLAN 200
  participation of VLAN include 200-201
  VLAN tagging 201
  IP mtu 1500
  output

  interface 0/11
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  bandwidth 100000
  -Other - or ITU (q)
  pvid VLAN 200
  participation of VLAN include 200-201
  VLAN tagging 201
  IP mtu 1500
  output

  interface 0/12
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  bandwidth 100000
  pvid VLAN 200
  participation of VLAN include 200-201
  VLAN tagging 201
  IP mtu 1500
  output

  interface 0/13
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  -Other - or ITU (q)
  bandwidth 100000
  pvid VLAN 200
  VLAN automatic participation 1
  participation of VLAN include 200-201
  VLAN tagging 201
  IP mtu 1500
  output

  interface 0/14
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  bandwidth 100000
  pvid VLAN 200
  VLAN automatic participation 1
  participation of VLAN include 200-201
  VLAN tagging 201
  IP mtu 1500
  output

  -Other - or ITU (q)
  interface 0/15
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  bandwidth 100000
  pvid VLAN 200
  VLAN automatic participation 1
  participation of VLAN include 200-201
  VLAN tagging 201
  IP mtu 1500
  output

  interface 0/16
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  bandwidth 100000
  pvid VLAN 202
  VLAN automatic participation 1
  participation of VLAN include 201-202
  VLAN tagging 201
  IP mtu 1500
  output
  -Other - or ITU (q)

  interface 0/17
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  bandwidth 100000
  pvid VLAN 200
  participation of VLAN include 200-201
  VLAN tagging 201
  IP mtu 1500
  output

  interface 0/18
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  bandwidth 100000
  pvid VLAN 203
  participation of VLAN include 200-201 203
  VLAN tagging 201
  IP mtu 1500
  -Other - or ITU (q)
  output

  interface 0/19
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  bandwidth 100000
  pvid VLAN 206
  VLAN automatic participation 1
  participation of VLAN include 201 206
  VLAN tagging 201
  IP mtu 1500
  output

  interface 0/20
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  bandwidth 100000
  pvid VLAN 999
  participation of VLAN include 200-201 204-207 455-456 999
  -Other - or ITU (q)
  VLAN tagging 200-201 204-207 455-456
  IP mtu 1500
  output

  interface 0/21
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  bandwidth 100000
  pvid VLAN 455
  VLAN automatic participation 1
  participation of VLAN include 200-204 455-456
  VLAN tagging 200-204
  IP mtu 1500
  output

  interface 0/22
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  bandwidth 100000
  -Other - or ITU (q)
  switchport mode trunk
  switchport trunk vlan native 456
  pvid VLAN 456
  VLAN automatic participation 1
  participation of VLAN include 200-204 456
  VLAN tagging 200-204
  IP mtu 1500
  output

  interface 0/23
  VLAN 201 votes
  policy - PolicyVoiceVLAN
  bandwidth 100000
  switchport mode trunk
  switchport trunk vlan native 456
  pvid VLAN 456
  participation of VLAN include 200-204 456
  VLAN tagging 200-204
  IP mtu 1500
  output

  -Other - or ITU (q)

  interface 0/24
  bandwidth 100000
  switchport mode trunk
  switchport trunk vlan native 999
  pvid VLAN 999
  participation of VLAN include 200-208 455-456 999
  VLAN tagging 200-207 455-456
  IP mtu 1500
  output

  interface vlan 1
  Routing
  DHCP IP address
  output

  interface vlan 200
  Routing
  -Other - or ITU (q)
  IP 10.253.0.1 255.255.255.0
  output

  interface vlan 201
  Routing
  IP 10.253.1.1 255.255.255.0
  output

  interface vlan 202
  Routing
  IP 10.253.2.1 255.255.255.0
  IP access-group Deny_Guest_Intervlan_Routing vlan 202 in
  output

  interface vlan 203
  Routing
  IP 10.253.3.1 255.255.255.0
  output
  -Other - or ITU (q)

  interface vlan 204
  Routing
  IP 10.253.4.1 255.255.255.0
  output

  interface vlan 205
  Routing
  IP 10.253.5.1 255.255.255.0
  output

  interface vlan 206
  Routing
  IP 10.253.6.1 255.255.255.0
  output

  -Other - or ITU (q)

  interface vlan 207
  Routing
  IP 10.253.7.1 255.255.255.0
  output

  interface vlan 208
  Routing
  IP 10.253.8.1 255.255.255.0
  output

  interface vlan 455
  Routing
  IP 10.253.255.2 255.255.255.0
  output

  interface vlan 456
  -Other - or ITU (q)
  Routing
  IP 10.253.11.1 255.255.255.0
  output

  interface vlan 99
  Routing
  IP 10.253.9.1 255.255.255.0
  output

  IP management vlan 203
  dhcp service
  pool IP dhcp "Telefonie.
  Rental 7 0 0
  Server DNS 8.8.8.8 8.8.4.4
  router by default - 10.253.1.1
  Network 10.253.1.0 255.255.255.0
  domain secit.be
  b-node NetBIOS node type
  output

  -Other - or ITU (q)
  pool IP dhcp "guest."
  Rental 0 12 0
  Server DNS 8.8.8.8 8.8.4.4
  router by default - 10.253.2.1
  Network 10.253.2.0 255.255.255.0
  secit domain name - guest.be
  b-node NetBIOS node type
  output

  pool IP dhcp 'media '.
  Rental 0 12 0
  10.253.3.2 DNS Server 8.8.4.4
  router by default - 10.253.7.1
  Network 10.253.7.0 255.255.255.0
  secit domain name - media.be
  b-node NetBIOS node type
  output

  pool IP dhcp "TD."
  Rental 0 14 0
  10.253.3.2 DNS Server 8.8.4.4
  router by default - 10.253.4.1
  Network 10.253.4.0 255.255.255.0
  -Other - or ITU (q)
  secit domain name - td.be
  b-node NetBIOS node type
  output

  pool IP dhcp "internal."
  Rental 7 0 0
  10.253.3.2 DNS server
  router by default - 10.253.0.1
  Network 10.253.0.0 255.255.255.0
  domain fixitsolutions.local
  b-node NetBIOS node type
  output

  output

  Maybe it's the DHCP packet filtering.

  For help, try to add a rule to allow DHCP packets.

  Example: (this is obviously NOT the exact rule to filter only the DHCP packets, but just a simple rule for the test)

  IP access-list Deny_Guest_Intervlan_Routing
    permit udp 0.0.0.0 255.255.255.255 0.0.0.0 255.255.255.255 eq 67
    permit udp 0.0.0.0 255.255.255.255 0.0.0.0 255.255.255.255 eq 68
  
    deny ip 10.253.2.0 0.0.0.255 10.253.0.0 0.0.255.255
  
    IP 10.253.2.0 allow 0.0.0.255 0.0.0.0 0.0.0.0
  
  output

  If this ACL works (you can get the DHCP address), then you will need to write the ACL right, something like (this is just an example):

  IP access-list Deny_Guest_Intervlan_Routing
    ! DHCPDISCOVER
    permit udp 0.0.0.0 0.0.0.0 eq 68 255.255.255.255 0.0.0.0 eq 67
    ! DHCPOFFER
    0.0.0.0 eq 67 255.255.255.255 0.0.0.0 eq 68
    ! DHCPINFORM
    permit udp 10.253.2.0 0.0.0.255 eq 68 255.255.255.255 0.0.0.0 eq 67
    ! DHCPACK
    0.0.0.0 eq 68
    permit udp 10.253.2.0 0.0.0.255 eq 67 255.255.255.255 0.0.0.0 eq 68
    ! Internal traffic
  
    deny ip 10.253.2.0 0.0.0.255 10.253.0.0 0.0.255.255
    ! Internet traffic
  
    IP 10.253.2.0 allow 0.0.0.255 0.0.0.0 0.0.0.0
  
  output

• Setup of the w/r/t LRT224 of confusion

  Hi people,

  I run a small SOHO and currently have two Internet service providers, but only have a physically connected to my network. When it breaks down, I swap the cable from my Internet service provider router 1 by one of the ISP router 2, and everything happens again, manually.

  So, I bought a LRT224 and I had this plan of implementation, but I don't think it will work. My thoughts were:

  1. the value 1 router ISP 192.168.1.1 without dhcp, assign 192.168.1.2 to the DMZ

  2 put ISP router 2 to 192.168.1.254, without dhcp, assign 192.168.1.2 to the DMZ

  3. set LRT224 on each WAN as static 192.168.1.2 with dhcp.

  4. devices to connect to LRT224

  I keep the LRT224 within the internal networks of each ISP router and do not connect not not the WAN directly, so it will be a problem?

  I think that if I had this work, he may not notice when 1 ISP fails.

  I'm trying this approach because I do not know how to connect directly to the Wan.

  Thanks for all the advice and help,

  Hi phreaq,

  If you want to leave the LRT224 manage your ISP twice, you need to connect to each of your two ISP modems directly to both the LRT224 WAN ports. Each of the LRT224 WAN port can be configured for what type of settings of your ISP (dynamic, static, or PPPoE) needs.  If your two existing routers are wireless routers, you can then just cascading them (LAN WAN or LAN to LAN) port LAN LRT224 to use the wireless capability. The DMZ of the LRT224 port has a different function.

  If your ISP already you provided with a modem/router with a default of 192.168.1.xx IP address, then simply change the local ip address of the LRT224 of 192.168.1.1 192.168.2.1 192.168.3.1, 10.10.10.1 172.16.1.1 or any intellectual property as long as it is not on the same IP address of your modem/router ISP range.

• Out-of-Band management on the servers in the DMZ

  Hi, I have four PC7048s in my DMZ. External, internal making face and 2 separate demilitarized. Everything is good. All workers.

  Since they are demilitarized I want only their route between them and thus in position off http, Https, Telnet, and SSH management so that they cannot be managed remotely from the DMZ subnets.

  I then plugged the OOB interfaces in my internal management switch and VLAN them accordingly. Very well, now I can ping my OOB interfaces on all four. But I can't manage them because I have disabled SSH, HTTPS, HTTP and Telnet

  If I allow them (just SSH and HTTPS) I am now able to manage the switches of the DMZ on the IPs DMZ subnet

  I thought that the point of the OOB was so this does not happen and there is isolation? If I have to spend globally on HTTPS and SSH, then they are not really well isolated (I understand that OOB traffic cannot talk to IN-Band etc. - is the fact that I turn on a global configuration for remote OOB service)

  Am I missing something?

  Thank you

  Your results are correct. To lock the management more far I suggest looking to implement ACLs. With the ACL you can permit/deny access to various management services.

  Page 1471, guide the user passes over these commands.

  FTP.Dell.com/.../PowerConnect-7048r_Reference%20Guide_en-US.pdf

  Thank you

• DMZ FOR LAN

  IF I HAVE APPLAIANCE ON DMZ LETS SAY OF E-MAIL SECURITY... DO I NEED TO ACL OR NAT BETWEEN THE DMZ TO LAN POLICY?

  OR SIMPLY POLITICAL NAT AND ACLS OF THE WAN TO DMZ... AND DMZ TO LAN WILL SPEAK WITHOUT INTERRUPTION

  You don't need a policy of NAT, DMZ - LAN, only ACLs, which will allow traffic from the local network to your device in the DMZ.

  You must configure the NAT policy and an ACL while providing access outside your network form. That is to say, WAN - LAN or WAN - DMZ.

• Good way to implement DMZ

  We currently have an ASA with internal, DMZ and outside areas interfaces.

  Guests at the DMZ (web server, ftp server, etc. etc.) attach in the infrastructure of switching on a VLAN again. All hosts in the DMZ have public IPs only.  There is no internal IP on them and no nat going for them.

  We are concerned that this is not the right way to set up a demilitarized zone.  Should we assign these hosts the private internal IP and natting them.  How would that look on the SAA?  Would there be two separate network objects, one for IP address internal and one for outside?  We would use the network object with the external IP address for all rules in the DMZ?

  Are there other best practices to follow with the creation of a DMZ on the SAA?

  Any input would be greatly appreciated.

  Thank you

  Yes create you a new private IP subnet and apply the NAT rules to translate these IP addresses to your public IP addresses.

  I don't know what exactly is your question, ask yourself how to do NAT?

  With respect to the General discussion, there are different views on that.

  NAT has never been designed as a security tool, and some people strongly support that do not rely on NAT to safety. For any type of address you use the argument is that you control traffic with the ACL and if you configure these ACLs correctly then it should make no difference as to what type of address that you use.

  The other argues that NAT can ensure a certain level of security. Certainly for standard NAT where you hide all your IP addresses behind internal public IP address for internet access in general that it could be argued that it offers security as connections can be made from the outside, only the return traffic is allowed in.

  But for the static NAT instructions you are actually allowing external connections. It is also why some people specify the ports in their static statements IE not only to preserve the IPs but also because you will be allowed to connect to that specific port.

  If you do not specify the ports then theoretically any port can be connected to although of course, it is your ACL enter.

  To me that your security comes mainly from your ACL and any security advantage that make you NAT (as appropriate) is a plus but should not be relied on.

  So in your case if you use private IP addresses and do a direct translation between a private IP address and the public IP address is almost identical using public IP addresses directly, IE. you are totally dependent on your acl configuration that isn't a bad thing.

  There may be other advantages or disadvantages, but I don't see any.

  Perhaps others could comment on.

  It's really about which you are doing.

  If you choose to use private IPs make you have 'arp-nonconnected licence' in your configuration (it may or may not be on by default).

  Jon

• Client VPN on PIX needs to access DMZ

  VPN clients 3.5 ending PIX 6.X cannot access hosts on a PIX DMZ interface. Journal reports of error that there is no 'translation group available outside' for the subnet of the VPN Client (from the vpngroup pool).

  I should add the VPN client subnet to a nat (outside) device?

  Can I add it to the nat inside?

  Can I just add static to the DMZ hosts within the subnet interface because VPN clients can access the inside hosts?

  (I have the subnets in the nat 0 sheep ACL)

  Thanks and greetings

  JT

  You'll need to add is nat 0. You say in your () you have an acl sheep, for the perimeter network or the inside interface? You use the same access list to the sheep inside and dmz? You should separate if you use separate access list. Is your pool of client on a different subnet than your home network and dmz? It must be something like this:

  Customer IP local pool 192.168.1.1 - 192.168.1.254

  IP, add inside 10.10.10.1 255.255.255.0

  Add 10.10.20.1 dmz IP 255.255.255.0

  access-list sheep by 10.10.10.0 ip 255.255.255.0 192.168.1.0 255.255.255.0

  nonatdmz list of access by IP 10.10.20.0 255.255.255.0 192.168.1.0 255.255.255.0

  NAT (inside) 0 access-list sheep

  NAT (dmz) 0-list of access nonatdmz

  If this is correct then clear x, wr mem, reload. I hope this helps.

  Kurtis Durrett

  PS

  If he did not, only can recommend the upgrade your client and pix because that is exactly how it should look, and if its does not work you are facing an additional feature you want.

• Rules ACL ISA550W "hanging".

  Hey guys, I use an ISA550W with firmware firmware 1.2.15 on it.  I have a handful of interfaces LAN configured, whose two operating as DMZ (but I don't see the point to configure as a DMZ?)-see attached for more details.

  So far, it works great, but every now and then the only ACL rule I added manually stops working and the cup of my local network Mgmt OOB access.  If I "Reset" of the table of the ACL, the rule immediately starts to work again and access is restored.

  Has anyone else seen elsewhere?  Other options for sanitation?

  Thank you

  Phil

  Hi Phil,

  We saw some problems with AnyConnect affecting the ACL.  The good new s 1.2.17 has just been published.  Please go to 1.2.17 and test to see if that helps.

  Let me know if you have any questions in this regard.

  Thank you

  Brandon

• The ACL and the PDM PIX

  Hello

  I have a question about the PIX PDM, above all, how can I create an ACL with the function based on PDM?

  To give a better view of what I'm trying to achieve, I have a DMZ on my PIX I want only established connections back inside my network (I'll restrict inbound traffic inside the DMZ on the inside interface), however at the same time, I need full access to the DMZ to the Internet.

  Thank you

  Dione

  Set up is a command on the MDP currently does not support

• Need help of the ACL for SMTP

  All,

  First thanks for all assistance.

  I am trying to configure my ASA5505 to accept SMTP relay and the ACL\Static I have created does not work.

  Here is the config:

  ASA Version 8.2 (2)

  !

  names of

  !

  interface Vlan1

  nameif inside

  security-level 100

  IP 192.168.1.2 255.255.255.0

  !

  interface Vlan2

  nameif outside

  security-level 0

  IP 12.12.12.1 255.255.255.248--> deleted

  !

  interface Ethernet0/0

  switchport access vlan 2

  !

  interface Ethernet0/1

  !

  interface Ethernet0/2

  !

  interface Ethernet0/3

  Speed 100

  full duplex

  !

  interface Ethernet0/4

  !

  interface Ethernet0/5

  switchport access vlan 3

  !

  interface Ethernet0/6

  !

  interface Ethernet0/7

  !

  passive FTP mode

  permit same-security-traffic inter-interface

  permit same-security-traffic intra-interface

  access-list 101 extended permit tcp any host 12.12.12.1 eq smtp

  inside_access_in of access allowed any ip an extended list

  access-list sheep extended 10.10.10.0 any allowed ip 255.255.255.0

  pager lines 24

  Enable logging

  debug logging in buffered memory

  asdm of logging of information

  Within 1500 MTU

  Outside 1500 MTU

  MTU 1500 dmz

  ICMP unreachable rate-limit 1 burst-size 1

  don't allow no asdm history

  ARP timeout 14400

  Global 1 interface (outside)

  NAT (inside) 0 access-list sheep

  NAT (inside) 1 0.0.0.0 0.0.0.0

  public static tcp (indoor, outdoor) interface smtp 192.168.1.5 netmask 255.255.255.255 smtp

  inside_access_in access to the interface inside group

  Access-group outside_in in external interface

  Route outside 0.0.0.0 0.0.0.0 12.12.12.2 1

  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

  timeout tcp-proxy-reassembly 0:01:00

  dynamic-access-policy-registration DfltAccessPolicy

  Enable http server

  No snmp server location

  No snmp Server contact

  Server enable SNMP traps snmp authentication linkup, linkdown cold start

  Telnet timeout 5

  SSH timeout 5

  Console timeout 0

  management-access inside

  dhcpd outside auto_config

  !

  a basic threat threat detection

  Statistics-list of access threat detection

  no statistical threat detection tcp-interception

  !

  class-map inspection_default

  match default-inspection-traffic

  !

  !

  type of policy-card inspect dns preset_dns_map

  parameters

  maximum message length automatic of customer

  message-length maximum 512

  World-Policy policy-map

  class inspection_default

  inspect the icmp

  class class by default

  !

  context of prompt hostname

  Please help me :-(

  Thank you very much!

  Hi Jim,.

  The configuration guide will provide a few basic examples for setting up groups of items:

  http://www.Cisco.com/en/us/docs/security/ASA/asa82/configuration/guide/objectgroups.html

  Single network objects are only available in 8.3 and higher. However, a group of objects to 8.2 can certainly contain a single member.

  -Mike