Cisco Firewall :: 5520 - Object-group With Network-object Containing IP Address Range
Apr 7, 2013
Does the ASA treat an object-group with a network-object containing a range of IP addresses as a netmask? For example, I can apply this configuration without the ASA throwing any errors though the configuration calls for a 'net mask':
object-group network test
network-object 192.168.0.0 192.168.63.255
?
network-object-group mode commands/options:
A.B.C.D Enter an IPv4 network mask
sh run ob id test
object-group network test
network-object 192.168.0.0 192.168.63.255
I found that in the documentation it requires a netmask as oppose to a range. Is this a bug in the code? I am running code version 8.0(5)23 on a 5520. If this is not a bug how does the ASA treat this type of configuration when applied to an access list? When I ran a quick packet trace and denied access from that range it looks like the ASA doesn't read that configuration properly.
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Oct 25, 2011
I'm migrating our network objects from our current firewall to a new ASA 5520 configuration. I'm using ASDM 6.4 for configuration.
We have a range of IP addresses for hosts that we need to add to a firewall rule/ACL. In the previous FW software I could create an object that was a range of IP address. For example there is an object called emailservers that is defined as 192.168.2.25-192.168.2.50.
Is there a way to do a similar thing on the ASA 5520?
I can see how to create subnets, but in this case I only have a range of IP addresses, no subnet mask.
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Feb 6, 2013
I have 3 ASA 5510s; two of which are in production and the 3rd one is new. I inherited the two in production and was trying to configure that 3rd one using some of the existing object-group network statements. The problem is that when I try to create a range of IPs in one of the object-groups; the range command is not available. Here is one of the statements extracted from one of the production ASAs: object network REMOTE range 62.77.130.14 62.77.130.208.Both ASAs have the same image ver (asa842-k8). Is there something that I am missing to be able to enable the range option on the new ASA?
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Oct 29, 2012
We have Cisco ASA 5510, I am about to add another 2 Objectgroup network groups on the firewall to our already growing list. Under this Object-group Network xxxx , we are planning to add about about 500 network-object host xxx.xxx.xxx.xxx . This objectgroup will then be applied to an ACL. Just wanted to know if thats possible - meaning addnig 500 hosts? If it is whats the limit?
Also are there any other things to keep in mind before i go-ahead with this huge object group?
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May 2, 2011
I have a 5540, and i am trying to allow access to internet for an specific network object group, who has inside a bunch of users, who needs direct internet access without any restrictions, i have tried with dynamic NAT, but that configuration ask for a specific IP o a Network range, and is not permitted to configure an object group as a source
The group is located in LAN zone, so a permission from one zone to another zone is needed i think, but i can allow the internet acess to that group Is there another way to get that , different from NAT ?
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Sep 26, 2011
i have an ASA 5520 8.4(1) with following config
interface GigabitEthernet0/0
nameif WAN
security-level 0
ip address 216.52.185.33 255.255.255.240 standby 216.52.185.34
!
i need traffic (port 9350) from DMZ and WAN forwarded to object Production_23 port 3389, how do i achieve this ?
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Sep 19, 2011
After reading the post titled "ASA 5520 nat access-list query for internet access" I realized the object-group command could and should be used to make a more efficient and cleaner configuration. My current environment is very small and straight forward consisting of one FTP server in the DMZ. Though the guide: [URL] is straight forward, my inexperience hinders me from seeing how to use the commands effectively. A summary of the configuration is at the bottom of this post
Question: How can I clean up my current configuration? I have two references to the same server, dmz-rdp and dmz-ftp, created for port forwarding ports 3389 and ftp through the outside interface. I can combine them into one object statement, right? for each port I want to forward through the outside interface?
object network dmz-rdp
host 10.10.10.4
nat (DMZ,outside) static interface service tcp 3389 3389
[Code]....
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May 16, 2011
When I create a service object or group and add the object to a new rule it never works.I mean the traffic match not the rule. I see not hits.I placed the rule on top of my access list to check if I do somethink wrong but it is not working. When I place only a service for example tcp/23 it is working.
my ip service object
object-group service g-as400 description access client 2 as400 machine service-object tcp-udp destination eq 397 service-object tcp destination eq 137 service-object tcp destination eq 2001 service-object tcp destination eq 3000 service-object tcp destination eq 445 service-object tcp destination range 446 447 service-object tcp destination eq 449 service-object tcp destination eq 5010 service-object tcp destination eq 5544 service-object tcp destination eq 5555 service-object tcp destination range 8470 8476 service-object tcp destination eq 8480 service-object tcp destination eq
[code]...
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Feb 5, 2013
Any one know when object-group ACLs will be supported in cat4500 IOS-XE ?? Doesnt seem to be supported now.
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Jan 2, 2012
In cisco router 2911 how to creat a network object with port permission on ACL. herz what i have done but couldnt succeed in port 22 and 24 should be denied and rest all port services are allowed to outside interface. [code]
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Feb 16, 2011
I have two layer 3 switches C3560 and C3750 Cisco switches with ios version "ipservices-mz.122-35.SE5".Now with the current ios version, these layer 3 switches are not supporting object group.so my question is , do i need to upgrade the ios, for this feature, if yes, which version ?
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Aug 19, 2012
There is something wrong with the ordering of our NAT-rules.We are running ASA Version 8.4(2)8 and the nat config is pasted below.
I want outgoing smtp-traffic to be translated to xxx.yyy.zzz.18, but instead it's translated to xxx.yyy.zzz.20 (the outside-interface address).The same goes for ftp-traffic, according to packettracer this is also translated to the xxx.yyy.zzz.20.
Ciscos manual states that static nat rules takes precedence over dynamic nat but that doesn't seem to work for us. [code]
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Dec 31, 2012
Can i use acl object group with wccp redirect list?My platforms are 6500 and isr 2921
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Dec 17, 2007
When ever I create a network object in ASDM 6.0(3) the UI also wants to send the command 'asdm location (network object IP address)' to the device.What is the purpose of 'asdm locaction ....'? Is it telling the ASA-5540 that the IP address is allowed to connect to the device using ASDM?If that is the case why does 'asdm location xxx.xxx.xxx.xxx'get denerated for every network object I create?
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Jan 30, 2012
I have recently upgraded my ASA 5510 to 8.3 code and honestly I am confused on the best and most efficient way to do many nat translations through it. I have a group of about 100 IP's that need http/https/and sqlnet allowed through for our web farm.
I have a text file with the real and translated IP addresses and in 8.2 I could simply modify it and dump the thing in and make the NAT rules and access-lists. Now with the new object based model I am having a hard time wrapping my brain around how to do this using as few lines of code as possible.
Do I have to create an network object for each and every IP i want to nat through?
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Apr 28, 2012
I just tried to do a quick privilege level setup for a user to limit access to asa. User should be able to add nat's to configuration.ASA 8.4 is in question and trying the following does not seem to work:
privilege configure level 3 command object,gives me ,ERROR: specified command 'object' not found in any mode.It looks like localy this cannot be done or I am doing something wrong?
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Aug 5, 2011
We are facing the problem in ASDM 5.x creates duplicate network object groups in the configuration when PIX with software 7.0.7 is used.
Audit report its showing below commands :
asdm group SALES_ref dmz2 reference SALES object-group network SALES_ref network-object 172.20.7.8 network-object 172.20.10.3 network-object 172.20.11.2
no access-list dmz2_access_in extended permit tcp object-group Network_10.10.1.0 object-group SALES object-group SALES_Ports access-list dmz2_access_in line 200 extended permit tcp object-group Network_10.10.1.0 object-group SALES_ref object-group SALES_Ports
i was created SALES object group 2 month back after that ASDM Automatically created the duplicate object with SALES_ref name and changed the old ACL.
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Jun 19, 2011
this is ASA5520 associate with 8.4(1). very simple scenario , three ports: inside . outside . DMZ my problem is how to use network object NAT to perform Regular Dynamic PAT and Identity NAT.
for example, this is my configuration
**** first i configured Regular Dynamic PAT****
object network myinside
subnet 10.200.11.0 255.255.255.0
nat (inside,outside) dynamic interface
**** then , i met problem when i want to make identity NAT between inside and DMZ****
**** if i add below CLI , the first nat line will be replaced ****
**** SO IF I ADD THIS****
[code]......
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Jun 8, 2011
Is it possible somehow to define externally administred DNS namese in ASA 8.4 in within object groups?i know that we can use name XXX, but some idea popped up using this kind of configuration.
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Dec 18, 2011
We have an ASA5505 that we need to enable hairpinning on.... In the old firmware versions, we used to be able to configure a public to private static mapping along with hairpinning by using
static (inside,outside) outside_ip inside_ip netmask 255.255.255.255
static (inside,inside) outside_ip inside_ip netmask 255.255.255.255
In 8.4, if I use object nat, the hairpin functionality works perfectly,
object network obj-insideip
nat (inside,inside) static publicip
however, since object nat only allows a single nat statement, I was attempting to use a twice nat to enable the hairpin functionality, but have been unsuccessful in coming up with the right combination of parameters for the functionality.
nat (inside,inside) source static private_object public_object destination static public_object private_object
allows hairpinning to successully work from the same machine. Meaning on any given host, I can ping itself using the private or public ip, but I can't get the right combination for hairpinning from any private host to another private host via the public ip. Other combinations have yielded icmp responses, however, they specify the private IP as the source of the reply instead of the public ip.
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Jul 20, 2011
I have an ASA5510 where I have defined object-groups and then associated them with a specific ACL. Our ISP is pulling their point of presence from where I live and I am force to move to a new ISP. I am in the process of setting up another interface for the ASA5510 to connect to the new ISP.
My questions is can I create a new ACL lets call it new_access_in and use it with the same object groups that I have already defined? I know that I can only have one ACL bound to an interface, and will bind this new ACL to the new interface I am setting up, but I wasn't sure if I could use the same object groups and connect them to a different ACL. I really don't want to have to create new object groups if I don't have to.
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May 9, 2012
I have an ASA 5510 and have just started using object-groups which are super handy in theory, but not working in reality. I have a service object-group with a mix of tcp, icmp, and udp ports. Let's call it Sample_Port_Group. I'm trying to apply it to my dmz_access_in ACL. Here's the line giving me problems:
access-list dmz_access_in extended permit object-group Sample_Port_Group 192.168.1.1 any
The asa throws up an error between 192.168.1.1 and any. When I put up a ? after Sample_Port_Group, it gives me the option of putting in an IP address, any, etc. When I put in a ? after 192.168.1.1, it only gives me the option of putting in an IP address.URL
Those posts gave me the impression my line was possible, especially the "access-list outsideacl extended permit object-group myaclog interface inside any" line, which is at the end of the 2nd article linked.
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Nov 4, 2012
We are in the process of migrating to the ASA service modules on both our 6509E switches from our current FWSM. We have used the Cisco conversion tool and applied that to the service module. When viewing the context in ASDM we are unable to view the object names in the right hand pane.
On the FWSM I would see the following under Network Objects:
Network Objects
- JQ-Test
- JQ-Test2
- JQ-Test3
Network Object Group
+ JQ Group
- JQ-Test
- JQ-Test2
- JQ-Test3
Now I have run the conversion tool and applied that to the ASA's I now get the following results.
Network Objects
- 10.1.1.1
- 10.2.2.2
- 10.3.3.3
Network Object Group
+ JQ Group
- 10.1.1.1
- 10.2.2.2
- 10.3.3.3
I am aware that the naming convention on the ASA's are different to the FWSM as you can no longer use the "name 1.1.1.1 JQ-Test1" format but I was hoping that the conversion tool would do this for me.
Is there any way I can get the names of the object back without having to script something that takes the old FWSM format and convert it into an ASA format?
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May 10, 2011
I am troubleshooting a s2s vpn between an ISR871 and my ASA5520 and I suspect a problem with my crypto-maps.
Is there a way I can display an access-list on the ASA and have the object names substituted with their IP addresses?
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Mar 17, 2011
Got an ASA5520 running V8.2(3) and we want to upgrade our internet bandwidth. Our ISP says OK but we need to install different physical circuit, upgrade CPE router, etc.
Then they say, btw your globally allocated IPs will change - this is a problem as we have Site-to-Site VPN Tunnels, IPSEC RA, etc.
ISP are proposing to give us a 3 month period whereby old & new IP blocks will be routed to our ASA (by means of secondary IP address on their Cisco CPE).
Multiple IPs on the same physical i/f on the ASA require sub-interfaces/IP Addresses/VLAN ids on my "outside" i/f.
Is this going to horiibly break Site-to-Site VPN Tunnesl, IPSEC remote access ?
Will VLANs work at all with IPSEC on the "oustide" i/f at all ?
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Jan 6, 2012
Just planning my move to 8.4(2) and I'm looking for some input. In the past, I have a text file with name commands for every host on my network that I know about. I would then deploy this list to all ASAs so that I could create ACLs on any firewall using a name, which would correlate to the same IP on any firewall.Now, the names from the name command no longer work as a host entry in ACLs, therefore I'm required to switch all of my active name command entries over to objects.My question is, have any of you found an easy way to change all name commands to objects? Since the name command doesn't specify the mask of the entry, I think this may not be possible without manually updating thousands of records. I know that once I migrate, there will be some objects auto-created, but those will only be host and or networks which have NATs associated with them.
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Jan 3, 2013
On one of my computer i'm having multiple issues. when I am on most websites it pops up " TypeError: object unexpected" or just "object unexpected" and I have to refresh the page for them to go away, but if I hit the back button or go to another section of the web page they pop back up. The same computer is now having connection issues and only has "unidentified network no internet access" as the only option, and after everything I have tried it will not budge on the wifi.
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Oct 26, 2011
Environment: Solaris 10(Sparc)
LMS 3.2
RME 4.3.1
CS 3.3.0
CM 5.2
I need to delete a device from CiscoWorks but I cannot find it in the Common Services->Device Management search. I can find it by IP address using the Network->Object Finder . It has an IP address, hostname, display name, and "managed by" information in the search results. Supposedly its managed by:
RME
IPM
DFM(listed twice)
However, when I click on the device link , it has almost no tools available (limited to ping) and no device information. I'm hard pressed on how to delete the item withouth having it in Common Services so that I can select it and then click on "delete" . how I can purge this device?
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Jul 17, 2011
I'm trying to determine who's throttling our 'Outside' interface because it's being hogged.Is there an easy way to see what data is assigned to what object on our ASA5510
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Apr 6, 2011
webpage error details object required
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Mar 5, 2012
Any way of doing named objects or object groups for ACLs on the ASRs? (1000 series in this case.) I'm setting up an ASR with a zone-based firewall and writing out all the addresses, ports and protocols for the ACLs associated with the various zones is creating huge, unwieldy ACLs in the config.
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Oct 30, 2011
I'm going to replace a Cat6513 with a Nexus 7018. In my Cat6513, there are object tracking config as follows:
ip sla monitor 1
type echo protocol ipIcmpEcho 112.78.254.249
timeout 3000
frequency 6
ip sla monitor schedule 1 life forever start-time now
ip route 172.17.7.0 255.255.255.0 165.202.51.46 name VPN-1 track 123
Is there similar feature in Nexus platform? Because from Nx-OS command ref, I only found:
ip route ip-prefix/mask {[interface] next-hop} [preference] [tag id]
Seems can't associate a track object to a static route in Nx-OS?
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Jul 28, 2011
i have 3560 switch located in warehouse environments . i need to monitor the temperate of this switch . i am looking for OID value that serves this purpose .
kindly provide me how to look for all OID that give me real time status for FAN .. CPU UTILIZATION ...TEMPERATURE ...OR ANY MAJOR EVENT THAT CAN DISRUPT MY PRODUCT IN .
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