outside NAT question

I created an external NAT for my pc to allow internal users to access my pc in my domain name. But because of the domain name is not configured yet, I can only test the outside NAT by referring to my external IP address. For example, my pc has ip internal 10.10.10.11, external ip 82.1.1.11. I have a static nat 10.10.10.11 value 82.1.1.11, also affect a foreign 82.1.1.11 nat 10.10.10.11. My pc has established access list rules to allow external access to my port 80 and 8080. However, when I type http://82.1.1.11/sitename/ to access one of my site, I can't. If I change the url to refer to my internal ip address, the site is displayed correctly.

Is there something I need to put in place to make it work?

Thank you

Pls see below:

"To access an address of dnat_ip alias with the static control instructions and access-list, specify the address of dnat_ip in the statement of access-list command as the address which traffic is allowed to. The following example illustrates this point.

alias (inside) 192.168.201.1 209.165.201.1 255.255.255.255

static (inside, outside) 209.165.201.1 192.168.201.1 netmask 255.255.255.255

access-list acl_out permit tcp host 192.168.201.1 host 209.165.201.1 eq ftp - data

Access-group acl_out in interface outside.

http://www.Cisco.com/univercd/CC/TD/doc/product/iaabu/PIX/pix_sw/v_62/cmdref/AB.htm

Tags: Cisco Security

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    ASDM location 159.87.64.30 255.255.255.255 inside
    don't allow no asdm history

    Anyone have any ideas?

    Hello

    Please, add this line in your configuration and let me know if it works:

    access extensive list ip 10.7.30.0 inside_nat0_outbound allow 255.255.255.0 10.7.30.0 255.255.255.0

    I ask you to add that it is because you have not specified any exceptions for the return shipping. Once you add to it, will allow you to go through the tunnel VPN, packets back. When this command is not there, you will be able to access everything on the SAA but nothing behind it.

    Let me know if it helps.

    Thank you

    Vishnu

  • Simple question PIX

    Hello

    It's been a while since I've done work with a PIX and as such I am a little rusty with them. I wonder if someone who is a little more familiar with them my being able to answer my question.

    We have a 24 block of public IP addresses that are currently used for various Linux servers + AS5300. I prefer to keep it as a solid with subnets block it.

    We have a number of Windows 2000 servers that are running different PSTN switching + applications SQL that will be installed on the same network. I don't want to put these on the public internet any security guards are taken on local machines. Fortunately, we have a PIX 515 going spare.

    Is it possible to individual/block of IP addresses to the external interface inside card interface of the pix as opposed to a block of addresses for routing on the interface inside of our net block or perform a static mapping from the public to the private. I'm after the result for servers behind the PIX have a public IP address that is flowing through the PIX. So indeed the PIX would act as a bridge firewall. This type of installation is possible?

    Kind regards

    Alan

    Alan,

    Yes. I would * hopefully * is to group machines that keep their outside global addresses together so that I could create an access list to cover.

    i.e.

    access-list ip 10.10.10.0 sheep allow 255.255.255.224

    (Outside) NAT 0 access-list sheep

    This allows the 32 first-(2) IP addresses through the firewall with no address translation.

    You can also restrict the types of traffic as well. My suggestion is to keep the traffic flow and filtering of the traffic of the separate lists. So if I have a Web server in the subnet mentioned above, I would write the following:

    list of allowed incoming access tcp 10.10.10.3 255.255.255.255 eq www

    Hope this helps,

    Doug.

  • Ssh/telnet/web ASA5505 question

    I can't access this ASA everywhere except the console.

    I'm no expert, ASA, but I compared it to others I have configured asa, and I can't find the error of my ways.

    It is expected to be easy, I just need a different set of eyes looking at it now. I hope I don't have too much censor, but I imagine that if I am able to SSH locally, will fix all issues of access I have.

    :
    ASA Version 7.2 (4)
    !
    host name X
    domain X.local
    activate the encrypted password of XXXXXXXXXXXXXXXXXXX
    passwd encrypted XXXXXXXXXXXXXXXX
    names of
    !
    interface Vlan1
    nameif inside
    security-level 100
    IP 192.168.27.1 255.255.255.0
    !
    interface Vlan2
    nameif outside
    security-level 0
    IP address dhcp setroute
    !
    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
    !

    Banner motd to USE OFFICIAL ONLY. Unauthorized use prohibited
    Banner motd people who use this computer system is subject to having all
    Banner motd of their activities on this system monitored and recorded without
    new notice of Banner motd. Audit of users may include surveillance of the strike.

    boot system Disk0: / asa821 - k8.bin
    passive FTP mode
    clock timezone CST - 6
    clock to summer time recurring CDT
    DNS lookup field inside
    DNS domain-lookup outside
    DNS server-group DefaultDNS
    Server name X.X.X.12
    Name-Server 4.2.2.2
    domain pain.local
    permit same-security-traffic intra-interface
    object-group service XX tcp - udp
    60000 64999 object-port Beach
    object-group network MySpace
    object-network 67.134.143.0 255.255.255.0
    object-network 204.16.32.0 255.255.255.0
    network-object 216.178.32.0 255.255.224.0
    object-group network Facebook
    object-network 69.63.176.0 255.255.255.0
    object-network 204.15.20.0 255.255.255.0
    object-group Protocol TCPUDP
    object-protocol udp
    object-tcp protocol
    the DM_INLINE_NETWORK_1 object-group network
    object-network 10.x.x.0 255.255.255.0
    object-network 172.x.x.0 255.255.255.0
    object-network 10.x.x.0 255.255.255.0
    object-network 10.x.x.0 255.255.255.0
    object-network 10.x.x.0 255.255.255.0
    object-network 172.x.x.0 255.255.255.0
    the LocalLAN object-group network
    X subnet Local 192.168.27.x description
    object-network 192.168.27.0 255.255.255.0
    the DM_INLINE_NETWORK_2 object-group network
    object-network 10.x.x.0 255.255.255.0
    object-network 10.x.x.0 255.255.255.0
    object-network 10.x.x.0 255.255.255.0
    object-network 10.x.x.0 255.255.255.0
    object-network 172.x.x.0 255.255.255.0
    object-network 172.x.x.0 255.255.255.0
    the DM_INLINE_NETWORK_3 object-group network
    network-host 64.x.x.x object
    network-host 71.x.x.x object
    network-host 74.x.x.x object
    network-host 99.x.x.x object
    network-host 173.x.x.x object
    object-network 192.168.27.0 255.255.255.0
    object-network 192.168.1.0 255.255.255.0
    192.168.27.0 IP Access-list extended sheep 255.255.255.0 allow object-group DM_INLINE_NETWORK_1
    outgoing extended access-list deny ip any object-group inactive MySpace
    outgoing extended access-list deny ip any object-group inactive Facebook
    outgoing to the icmp a whole allowed extended access list
    coming out to the one permitted all ip extended access list
    extended access-list extended permitted ip object-LocalLAN group DM_INLINE_NETWORK_1 object
    outside_access_in list extended access allowed object-group ip DM_INLINE_NETWORK_3 all
    outside_cryptomap list extended access permitted ip object-group LocalLAN-group of objects DM_INLINE_NETWORK_2
    pager lines 24
    Enable logging
    timestamp of the record
    registration of emergency critical list level
    exploitation forest-size of the buffer 1048576
    emergency logging console
    monitor debug logging
    recording of debug trap
    notifications of logging asdm
    address record [email protected] / * /
    exploitation forest-address recipient [email protected] / * / level of errors
    exploitation forest-address recipient [email protected] / * / critical level
    logging feature 23
    forest-hostdown operating permits
    registration of emergency of class auth trap
    record labels of class config trap
    record labels of class ospf trap
    logging of alerts for the vpn trap class
    Within 1500 MTU
    Outside 1500 MTU
    ICMP unreachable rate-limit 1 burst-size 1
    ICMP allow any inside
    ICMP allow all outside
    ASDM image disk0: / asdm - 621.bin
    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
    Access-group outside_access_in in interface outside
    Route outside 0.0.0.0 0.0.0.0 192.168.X.X 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
    AAA authentication enable LOCAL console
    the ssh LOCAL console AAA authentication
    AAA authentication http LOCAL console
    Enable http server
    x.x.x.x 255.255.255.255 out http
    http 0.0.0.0 0.0.0.0 outdoors
    http 0.0.0.0 0.0.0.0 inside
    http 192.168.1.0 255.255.255.0 inside
    http 192.168.27.0 255.255.255.0 inside
    redirect http outside 80
    No snmp server location
    No snmp Server contact
    Community SNMP-server
    Server enable SNMP traps snmp authentication linkup, linkdown cold start
    Sysopt connection tcpmss 1360
    Crypto ipsec transform-set ESP-AES-128-SHA aes - esp esp-sha-hmac
    Crypto ipsec transform-set ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac
    Crypto ipsec transform-set ESP-DES-SHA esp - esp-sha-hmac
    Crypto ipsec transform-set esp-SHA-ESP-3DES-3des esp-sha-hmac
    Crypto ipsec transform-set ESP-DES-MD5 esp - esp-md5-hmac
    Crypto ipsec transform-set ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac
    Crypto ipsec transform-set ESP-3DES-MD5-esp-3des esp-md5-hmac
    Crypto ipsec transform-set ESP-AES-256-SHA 256 - aes - esp esp-sha-hmac
    Crypto ipsec transform-set ESP-AES-192-SHA esp-aes-192 esp-sha-hmac
    Crypto ipsec transform-set ESP-AES-128-MD5-esp - aes esp-md5-hmac
    Crypto ipsec df - bit clear-df outdoors
    card crypto outside_map 2 match address outside_cryptomap
    card crypto outside_map 2 set pfs
    card crypto outside_map 2 peers set x.x.x.x
    card crypto outside_map 2 game of transformation-ESP-AES-128-SHA
    outside_map interface card crypto outside
    crypto ISAKMP allow outside
    crypto ISAKMP policy 10
    preshared authentication
    aes encryption
    sha hash
    Group 5
    life 86400
    crypto ISAKMP policy 20
    preshared authentication
    3des encryption
    md5 hash
    Group 2
    life 86400
    enable client-implementation to date
    Telnet timeout 5
    SSH 0.0.0.0 0.0.0.0 inside
    SSH 0.0.0.0 0.0.0.0 outdoors
    SSH timeout 60
    Console timeout 0
    management-access inside
    dhcpd 10.x.x.x 4.2.2.2 dns
    dhcpd field pain.local
    dhcpd outside auto_config
    dhcpd option 156 ascii ftpservers = 10.x.x.x
    dhcpd option 42 ip 208.66.175.36
    !
    dhcpd address 192.168.27.2 - 192.168.27.33 inside
    dhcpd allow inside
    !

    NTP-1 md5 authentication key *.
    authenticate the NTP
    NTP server 10.x.x.x source inside
    username XXXXXXXXX XXXXXXXXXXXXXX encrypted privilege 15 password
    tunnel-group 64.X.X.X type ipsec-l2l
    IPSec-attributes tunnel-group 64.X.X.X
    pre-shared key X
    !
    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
    !
    global service-policy global_policy
    context of prompt hostname
    Cryptochecksum:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
    : end

    The party concerned to control where you are allowed to SSH in the ASA are these lines:

    ssh 0.0.0.0 0.0.0.0 inside
    

    ssh 0.0.0.0 0.0.0.0 outside

    But you have generated public/private keys?

    ASA (config) # crypto key generate rsa key general module 2048

    --
    Don't stop once you have upgraded your network! Improve the world by lending money to low-income workers:
    http://www.Kiva.org/invitedBy/karsteni

  • FWSM - NAT problem

    Anyone know if the worm 1.1 (3) fwsm supports bidirevtional nat or outside nat in the pix the fact?

    Thanks for any help

    Best regards

    Fabio Bellini

    Fabio,

    Nope, not bidirectional or outside NAT is supported in the FWSM 1.1 code (3). We add this to the 2.1 code which should be out in the first of the year. 1.1 in the FWSM mirrors PIX 6.0 code (with the exception of OSPF). The FWSM 2.1 code should reflect the code PIX 6.3. So, whatever it be added after 6.0 in the PIX won't be supported until FWSM 2.1. I hope this helps.

    Scott

  • no nat over vpn after vpn

    I have a site (my ASA) vpn to the site (provider) with a nat on the external interface device and work well. Rear (my ASA) VPN I have other site vpn (service A) for the site (my ASA) and work as well.

    My problem is the traffic of my branch A provider is clearly have no nat.

    My ASA

    object-group network attached
    object-network 192.168.1.0 255.255.255.0
    object-group network provider
    network-object 172.22.0.0 255.255.0.0
    the allmyBranch object-group network
    object-network 192.168.0.0 255.255.0.0

    extended inside permit access list ip object-group reteInside-group of objects plugged
    access list inside extended permit ip object-group allmyBranch-provider objects
    allowed to access extensive ip list nat0_acl object-group reteInside-group of objects plugged
    list of access VPN-Hots extended permitted ip object-group reteInside-group of objects plugged
    list of access VPN-provider allowed extended ip outside of the provider object-group interface
    list of access VPN-provider allowed extended ip object-group allmyBranch-provider objects
    permit ToSupplier to access extended ip object-group allmyBranch-group of objects provider list

    Global 1 interface (outside)
    NAT (inside) 0-list of access nat0_acl
    NAT (inside) 1 access-list ToSupplier

    do you have any idea how solve it? is this possible?

    Thank you

    I'm glad to hear that.

    If the problem is resolved and that you find it useful, if Please assess the threat and mark it as answered :-)

    Thank you.

    Federico.

  • Remote access ASA, VPN and NAT

    Hello

    I try to get access to remote VPN work using a Cisco VPN client and ASA with no split tunneling. The VPN works a little, I can access devices inside when I connect, but I can't access the Internet. I don't see any errors in the log ASA except these:

    1 Jul 04:59:15 % ASA-3-305006 gatekeeper: failed to create translation portmap for udp src outside:192.168.47.200/137 dst outside:192.168.47.255/137
    1 Jul 04:59:15 % ASA-3-305006 gatekeeper: failed to create translation portmap for udp src outside:192.168.47.200/54918 dst outsidexx.xxx.xxx.xxx/53

    There is only one address public IP that is assigned to the external interface of DHCP. The Interior is 192.168.1.0/24 network which is PAT'ed to the external interface and the VPN network is 192.168.47.X.

    I think my problem is that the net.47 is not NAT'ed out properly and I don't know how to put in place exactly. I can't understand how this is supposed to work since the net VPN technically provenance from the outside already.

    Here are all the relevant config:

    list of vpn access extended permits all ip 192.168.47.0 255.255.255.0
    Within 1500 MTU
    Outside 1500 MTU
    IP local pool vpnpool 192.168.47.200 - 192.168.47.220 mask 255.255.255.0
    IP verify reverse path to the outside interface
    IP audit info alarm drop action
    IP audit attack alarm drop action
    ICMP unreachable rate-limit 1 burst-size 1
    ICMP allow all outside
    Global interface (2 inside)
    Global 1 interface (outside)
    NAT (inside) 0-list of access vpn
    NAT (inside) 1 0.0.0.0 0.0.0.0
    NAT (outside) 2 192.168.47.0 255.255.255.0 outside
    static (inside, outside) tcp 3074 XBOX360 3074 netmask 255.255.255.255 interface
    static (inside, outside) udp 3074 XBOX360 3074 netmask 255.255.255.255 interface
    public static (inside, outside) udp interface 88 88 XBOX360 netmask 255.255.255.255
    public static tcp (indoor, outdoor) https someids netmask 255.255.255.255 https interface

    I can post more of the configuration if necessary.

    Change ' nat (outside) 2 192.168.47.0 255.255.255.0 apart ' "NAT (2-list of vpn access outdoors outside)" gives these:

    1 Jul 06:18:35 % gatekeeper ASA-3-305005: no group of translation not found for udp src outside:192.168.47.200/56003 dst outside:66.174.95.44/53

    So, how I do right NAT VPN traffic so it can access the Internet?

    A few things that needs to be changed:

    (1) NAT exemption what ACL must be modified to be more specific while the traffic between the internal subnets and subnet pool vpn is not coordinated. NAT exemption takes precedence over all other statements of NAT, so your internet traffic from the vpn does not work.

    This ACL:

    list of vpn access extended permits all ip 192.168.47.0 255.255.255.0

    Should be changed to:

    extensive list of access vpn ip 192.168.47.0 255.255.255.0 allow

    (2) you don't need statement "overall (inside) 2. Here's what to be configured:

    no nat (outside) 2 192.168.47.0 255.255.255.0 outside

    no global interface (2 inside)

    NAT (outside) 1 192.168.47.0 255.255.255.0

    (3) and finally, you must activate the following allow traffic back on the external interface:

    permit same-security-traffic intra-interface

    And don't forget to clear xlate after the changes described above and connect to your VPN.

    Hope that helps.

  • ASA 5505 Anyconnect traversal nat error

    Good afternoon gents,

    I installed an ASA 5505 and can connect with anyconnect, but when I do, I can't access my LAN, then my LAN can access my laptop.  In the newspapers, I see the following error message:

    Asymmetrical NAT rules matched for flows forward and backward; Connection for udp src outside;10.139.50.1/64506 dst inside 10.201.180.5/53 refused because of the failure of path opposite of that of NAT.

    I can't seem to figure this point and nothing I read to try worked. Here's the relevant config, any help would be GREATLY appreciated.

    interface Vlan1
    nameif inside
    security-level 100
    IP 10.201.180.10 255.255.255.0
    !
    interface Vlan2
    nameif outside
    security-level 0
    IP 67.200.133.107 255.255.255.248
    !

    access extensive list ip 10.139.50.0 inside_nat0_outbound allow 255.255.255.0 10.201.180.0 255.255.255.0
    access extensive list ip 10.201.180.0 inside_nat0_outbound allow 255.255.255.0 10.139.50.0 255.255.255.0

    mask 10.139.50.1 - 10.139.50.50 255.255.255.0 IP local pool SSLClientPool

    Global 1 interface (outside)
    NAT (inside) 0 inside_nat0_outbound list of outdoor access
    NAT (inside) 1 0.0.0.0 0.0.0.0

    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
    AAA authentication enable LOCAL console
    the ssh LOCAL console AAA authentication

    Try the nat statement 0 without the keyword on the outside.

    NAT (inside) 0-list of access inside_nat0_outbound

    In addition,

    sh run sysopt and stick out.

    Manish

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