Remove asa5520 access list
What is the cli command to remove the entire access list, but not a single ACE on asa5520 v7.2.1?
Hello
He has 'clear config access-list WORD' where the WORD is the name of the access list.
Caution - If you do not specify a particular access list, then all access lists are disabled.
HTH
Andrew.
Tags: Cisco Security
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No not removed from the external interface access-list access list?
PIX515
customer wanted to modify the access list (add a new line)
so he has first publish no access-list command can
apply the change to the access list, but the access list has been
removed from the interface outside
is this a normal behavior? on routers access list stay connected
for the event of the interface if you issue no access-list command
Thanks in advance for any comments
JYP
Hi Thibault-
No, it is not a normal behavior, sounds more like an error by the customer. It's always a good idea to copy the required ACL on a text editor (Notepad) do not forget to include "access-group command" i.e. "access-group interface inside inside' or 'access-group out in interface outside' - when copying the required ACL and then issues a 'no access-list inside' or 'no access-list outside' the first line in the ACL copied on your notebook before copy you it to the PIX , also make sure that you are using the config and make an "m wr" (write memory) after the ACL modified have been applied on the PIX.
Hope this helps-
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Ipv6 access list does not apply autonomous Aironet 3602I-E
As you can see in the attached config I configured two SSID (2G & 5 G) for a third (2G only) SSID and PEAP WPA2-Ent on the vlan 2 for 'poor team access as guest '.
Basically I forced the Dot11Radio0.2 interface in the Group of deck 1 to get all three SSIDS on vlan 1 (since I want just a quick way and dirty to allow its customers access to the internet, without having to configure a vlan separate everywhere).
The guest SSID (XX COMMENTS) allows tkip in addition to BSE and uses a PSK rather than PEAP. Access lists configured on Dot11Radio0.2 IPv4 allows clients connected to this SSID get an IP by DHCP, use the DNS servers on the local network and access the internet. All other traffic for the local network is blocked by access lists guest_ingress and guest_egress.
This all works very well, ipv4 is blocked for guests invited as expected. However, ipv6 is something different. For some reason, the ipv6 access list is completely ignored.
Because I don't need ipv6 for guest access, I thought that I have completely block and do with it. As you can see I have this set:
interface Dot11Radio0.2
guest_ingress6 filter IPv6 traffic in
guest_egress6 filter IPv6 traffic onand these ipv6 access lists have a rule of "refuse a whole" only. Yet, the XX COMMENTS SSID connected client gets an ipv6 address of the server on the LAN DHCP6 and has full connectivity. For ipv4, that I had to explicitly allow DHCP packets to the client not even get an IP, so the ipv6 access lists are not clearly applied.
No matter if I move the access interface Dot11Radio0 instead lists, they don't do anything. I thought that maybe I should add a "enable ipv6" on the Dot11Radio0.2 interface (even if ipv6 traffic was very good, even where it shouldn't), but when I set "enable ipv6" Dot11Radio0 or Dot11Radio0.2 the radio goes into a sort of infinite loop of reset:
000261: Sep 23 2016 22:32:50.512 it IS: % DOT11-5-EXPECTED_RADIO_RESET: restart Radio Dot11Radio0 interface due to the reset of the interface
000262: Sep 23 2016 22:32:50.516 it IS: % LINK-6-UPDOWN: Interface Dot11Radio0, changed State to down
000263: Sep 23 2016 22:32:50.524 it IS: % LINK-5-CHANGED: Interface Dot11Radio0, changed State to reset
000264: Sep 23 2016 22:32:51.516 it IS: % LINEPROTO-5-UPDOWN: Line protocol on the Interface Dot11Radio0, state change downstairs
000265: Sep 23 2016 22:32:51.560 it IS: % LINK-6-UPDOWN: Interface Dot11Radio0, changed State to
000266: Sep 23 2016 22:32:51.568 it IS: % LINK-6-UPDOWN: Interface Dot11Radio0, changed State to down
000267: Sep 23 2016 22:32:51.576 it IS: % LINK-5-CHANGED: Interface Dot11Radio0, changed State to reset
000268: Sep 23 2016 22:32:52.608 it IS: % LINK-6-UPDOWN: Interface Dot11Radio0, changed State to
000269: Sep 23 2016 22:32:53.608 it IS: % LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed State to
000270: 22:32:53.608 Sep 23, 2016 it IS: % DOT11-5-EXPECTED_RADIO_RESET: restart Radio Dot11Radio0 interface due to the reset of the interface
000271: Sep 23 2016 22:32:53.612 it IS: % LINK-6-UPDOWN: Interface Dot11Radio0, changed State to down
etc.In addition, when creating a list like this ipv6 access:
guest_egress6 IPv6 access list
refuse an entire ipv6The other is automatically created:
IPv6-guest_egress6 role-based access list
refuse an entire ipv6A deletion also removes the other.
What is happening with these ipv6 ACLs, why they are not blocking all traffic? Why do I get an acl "role-based" too? Is associated it with?
Is there a another way to kill just any ipv6 on the SSID of COMMENTS XX traffic while leaving alone on others? That's all I need at this stage. If the ipv6 ACL do not work, perhaps this can be done (ab) using a service-policy or policy routing? I'm ready to creative solutions :)
PS. I know this is not the recommended method to configure a guest SSID, but it should still work IMO.
You have encountered a bug I discovered a few months ago (CSCva17063), in your case, the workaround is to apply the ACL on the physical rather than the void interface interface (because you want to completely block IPv6 in any case). I write (more) my conclusions regarding the traffic that refusal on autonomous APs in a blogpost, might be interesting for you to read as well.
Remember that the access point used as a bridge between the wired infrastructure and wireless, not as a router. There's some IOS routing of commands (like the "enable IPv6" command you pointed out) , but these are not the characteristics that should be used or need to be enabled on an access point.
Because the networks internal and customer spend somewhere else, I would perform filtering on this device instead. Also sub gi0.2 interface is missing from your configuration, so I do not think that access as a guest is currently working at all?
Please rate helpful messages... :-)
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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
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I am facing convert statements leads on our PIX 520 access lists. Is there a better way to do this will be as little as possible traffic interruption? For example, to create access lists and then remove the conduit, or vice versa?
Second, is there a priority recommended in order to access list?
Hello
This is a very good paper on the conversion of lines to the ACL, also when writing ACL always have your most important ACL on top of the ACL work from the top down. When you make changes to the ACL or static lines always issue the command clear xlate and save with RAM command.
http://www.giac.org/practical/GSEC/Bill_Donaldson_GSEC.pdf - by Bill Donaldson, GSEC.
If you want more information/inf, then let me know.
Thank you / Jay.
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I've searched and can't seem to find a way to clean the hitcnt on an access list other than the deletion and restoration of the access list. Does anyone know how to do this?
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Allow Access-list ip x.x.x.x 255.255.255.240 sheep a (hitcnt = 72408)
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Hello
I have some problems on ASA 5520 split tunneling configuration.
Here's the scenario:
Number of remote users connects ipsec with ASA 5520 (in central) using ubuntu vpnc-client.
Split tunneling is used, in order to allow remote users to surf the Internet using their ISP.
The goal is to remove the possibility for ssh/telnet servers within the local enterprise network for remote users.
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value of Split-tunnel-network-list REMOTE_splittunnel-group type REMOTE access remotely
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ip subnet ##192.168.100.0/24 - where from Radius Server to allocate ip addresses to remote users.
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It has nat enabled on the interface, but there is a special instruction in nat0 ACL for 192.168.100.0 subnet
permit access ip 192.168.0.0 scope list INSIDE_LAN_nat0_outbound 255.255.255.0 192.168.100.0 255.255.255.0
The problem is that the remote users can easily ssh and telnet servers in network INSIDE_LAN. Everything I put in INSIDE_LAN_in ACL, remote users still have full access to this network. Restrictions in the REMOTE_split ACL do not work either.
You must configure vpn-filter rather to block telnet and ssh access as follows:
Remote filter access list deny tcp 192.168.100.0 255.255.255.0 192.168.0.0 255.255.255.0 eq 22
Remote filter access list deny tcp 192.168.100.0 255.255.255.0 192.168.0.0 255.255.255.0 eq 23
distance-filter 192.168.100.0 ip access list allow 255.255.255.0 192.168.0.0 255.255.255.0
attributes of Group Policy REMOTE_gp
VPN-value filter-remote control
Split tunnel acl has the following statement and it should be extended to standard ACLs instead of:
REMOTE_split list of permitted access 192.168.0.0 255.255.255.0
Hope that helps.
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Access list ASA Error | ERROR: % incomplete command
Hi all
I am trying to enter the following rule but I get an error message, I have a similar rule already inside the firewall, so I don't get really what is the problem and how to go about troubleshooting. Can anyone help?
acl_inside list extended access allowed object-group 16-09-08F 132.235.192.0 255.255.192.0 eq https Journal
(network-config) # access - list extended acl_inside permitted object-group$
acl_inside list extended access allowed object-group 16-09-08F 132.235.192.0 255.
255.192.0 log https eq
^
ERROR: % name host not validSAME THING WITHOUT JOURNAL
(network-config) # access - list extended acl_inside permitted object-group$
acl_inside list extended access allowed object-group 16-09-08F 132.235.192.0 255.
255.192.0 eq https
ERROR: % incomplete commandSAME STUPID MISTAKE,
THE SIMILAR RULE;
# ACCess-list HS | I have 132.235.192.0
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I'm not sure that this ensures a case of cisco?
FW100ABCx (config) # 16-09-08F object-group network
FW100ABCx(config-Network) # host network-object 172.191.235.136
Add items (host to network-object 172.191.235.136) to grp has failed (16-09-08F); the object already exists
FW100ABCx(config-Network) # host network-object 172.191.235.135
Add items (host to network-object 172.191.235.135) to grp has failed (16-09-08F); the object already exists
FW100ABCx(config-Network) # host network-object 172.191.235.134
Add items (host to network-object 172.191.235.134) to grp has failed (16-09-08F); the object already exists
FW100ABCx(config-Network) # host network-object 172.52.134.76
Add items (host to network-object 172.52.134.76) to grp has failed (16-09-08F); the object already exists
FW100ABCx(config-Network) #.
FW100ABCx(config-Network) # acl_inside of access allowed object-group list $acl_inside list extended access allowed object-group 16-09-08F 132.235.192.0 255.255.192.0 eq 443
ERROR: % incomplete commandHello Hassan.
You're missing the key word of Protocol (tcp/udp)
Try this:the object-group 16-09-08F network
host of the object-Network 172.191.235.136acl_inside list extended access permitted tcp object-group 16-09-08F 132.235.192.0 255.255.192.0
Concerning
Dinesh MoudgilPS Please rate helpful messages.
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