Boss wants a listing of the firewall rules only. What's a command I can run that will give me a listing of this?If I can get an output of firewall rules only, via GUI, that'll work too. It just needs to end up with a printout on a piece of paper telling me what the firewall is doing.
View 17 RepliesOur company had been buying Cisco 1841 routers for years and they have served us well. The 1841 was discontinued and instead we have now purchased a Cisco 1921. It is brand new, running "Version 15.0(1r)M15" of IOS ("usbflash0:c1900-universalk9-mz.SPA.151-4.M4.bin" file).
On our older Cisco 1841 routers, we would always prioritize certain TCP and UDP packets using the priority-list command. However, I have suddenly discovered that priority-list is not available on this brand new router. (?) I am unsure why. I did some reading and according to the document [URL], and priority-group are unsupported in Cisco IOS 15.
Later version of a product isn't as fully-featured as the earlier version. I want to prioritize the following type of network traffic.
UDP ports 8000 through 8063, 2427, 2727, 9300, 9301
TCP port 35300, 60001 through 60010, 2065, 33333, 3065
giving them a higher priority than the rest of other packets. This is necessary for our vendor's VoIP implementation. These packets should be "high" priority; everything else can be "medium."
How to delete run command dropdown list
View 1 Replies View Relatedis there a cisco command to check the list of incoming vlans on a catalyst 4640 or at least that will give you the same output?we're having an issue with an ethernet circuit, links are up but ping won't go through(no ACLs) and I want to see if the vlan tag from the the other side(side B) is properly reaching side A.
View 1 Replies View RelatedIm trying to simulate a switch in Gns3 and i use 16ESW module in a cisco 3700 router. why im getting this record after i try to filter which vlans pass through my trunk port:Router(config-if)#switchport trunk allowed vlan 2,3,4 Command rejected: Bad VLAN allowed list. You have to include all default vlans, e.g. 1-2,1002-1005.
View 6 Replies View RelatedNot sure why the N7K M1 card doesn't take this command. It works on other N7K at different site. [code]
View 1 Replies View RelatedI am using cisco 1841 LAN router, I need to block MAC address i have applied the command access-list 1102 deny 0000.0000.0000.0000 mac address..... but it does not work.
View 24 Replies View Relatedi have a cisco 837.I need hardening the access and firewall rules. I dont understand ip inspect.
View 1 Replies View Related I am configuring a 2921 with enhanced security using the CCP. I have found a behavior that seems strange to me and I'm not sure if I'm misunderstanding something or missing a setting. It seems that if I create a firewall rule to "allow" traffic through, that traffic gets dropped, but if I set the action to "Inspect", the traffic comes through fine. I can actually reproduce this at will by setting up a rule from out-zone to self to allow traffic and I cannot telnet into it from an external ip, but if I change that rule to "inspect" i can connect fine (i dont want that rule set up permanently, was just using it to test the firewall).
If I set the allow rule to log, I see the following line in the application security log:
(target:class)-(ccp-zp-out-self:user-fw-ccp) Passing telnet pkt 1.1.1.1:58141 => 2.2.2.2:23 with ip ident 0
(where 1.1.1.1 is the external laptop and 2.2.2.2 is my WAN IP address of the 2921)
So it looks to be passing the traffic, but that traffic is getting dropped somewhere because the connection is unsuccessful.
Is this the expected behavior of "Allow" action? Is there something I can do to make sure "allow" traffic actually gets through?
I have a Pix 515, and a question about firewall rules/access lists.I have recently created a new VPN group, and IP Pool.I created a firewall rule that grants access via TCP to a specific IP address from this firewall. However, when I test the VPN from outside the company, I find I can get to whatever server I want to. There is no allow any/any. I do not think there is any other rule before it or after it that would give that kind of access as most of our rules are for specific IP's and protocols.
The only thing I could think of is that we are using the account management in the firewall to authenticate the users. I am giving the VPN users level 3 access.I will probably not post my config as it is my firewall config, and it would be against company policy.
Is it possible to provision 3 different public IP addresses to the same DMZ IP (Web server) on an ASA running ver 8.2(4)? Unfortunately, the way the server was provisioned Static or Dynamic PAT will not work. I have read that ver 8.3 and up supports natively one-to-many NAT translations, but at this point the client is not ready for an upgrade. Is there anything else I could do to overcome this challenge?
Outside --------> DMZ
200.1.1.1------> 10.1.1.1
200.1.1.2------> 10.1.1.1
200.1.1.3------> 10.1.1.1
I'm having some troubles with NAT, packets does not match nat rule (that i think it should) and is not choosing the right egress interface. So crypto map never starts
this is the relevant config:
interface Port-channel2.4
description Public TESA ADSL internet connection
vlan 7
[Code].....
I have a problem with firewall rules. If I set some rules for open communication and some for closed, so I cannot reorder from the end to begin.
Last rules are at the end of all. So I can only reorder in one pages.(I have about 33 rules = 3 pages of rules)
Ive migrated from my lab pix to a lab asa and am trying to open certain ports to my internal network.
in my confg on my pix i had acls to open port 51413 to an inside host along with the static nat rule.
what i am trying to accomplish is same on my asa, however the nat rules seem to be slightly different, and i'm not completely sure how to do it.
My ACL and nat rule is below. I'm pretty certain my acl is correct,but i am not sure as to what to do with my NAT rules to allow a translation for the tcp service.
access-list outside-in extended permit object tcp51413 any object outside nat (inside,outside) source dynamic all-inside-nat interface
I have a question about the new nat implementation in an ASA 8.4. when I perform a "show nat" I get the following result:
1 (outside) to (inside) source dynamic any NAT-SSL-VPN_172.30.100.250 destination static 00B_172.30.100.0_24 00B_172.30.100.0_24
translate_hits = 26, untranslate_hits = 0
2 (inside) to (outside) source static LAN-HOST_172.30.100.11_LNX01 WAN-HOST_84.199.44.2_32_LNX01 service TCP-80-HTTP TCP-80-HTTP
translate_hits = 0, untranslate_hits = 0
Is it possible to change the order of the nat rules without removing and reapplying the rule on position 1 ? (both rules have to stay in section 1)
I have several working VPNs between ASAs 8.4 and 8.3The way this was set up is with cryptomaps that match whole subnets and ACL on the outside interface to permit from/to the RFC 1918 addresses.I notice that the hit count is zero on these rules and so I wonder if they are actually necessary or doing anything.If they are not where can an acl be applied to restrict the VPN traffic? Outbound on the inside interface?
View 1 Replies View RelatedHow can I filter my local lan's URL requests? Is it possible to have some sort of list like...
Default_User_Group
*.microsoft.com/*
*.mydomain.com
*.google.com
Then only allow certain ip's access to the entire internet like this...
Internet_User_Group
It would be nice to possibly be able to add the rules to users in my domain, then associate the domain account with an IP OR have them login to view webpages.
I have PIX 535 and using ACLs for allowing traffic. I need to clean up the rule base. I would like to know how to fetch a report of Unused rules for long time?Also when a traffic is being allowed, I want to know through which rule number its being allowed?
View 2 Replies View RelatedNote If you configure VPN, the client dynamically adds invisible NAT rules to the end of this section. Be sure that you do not configure a twice NAT rule in this section that might match your VPN traffic, instead of matching the invisible rule. If VPN does not work due to NAT failure, consider adding twice NAT rules to section 3 instead.
View 2 Replies View RelatedI have an 871 and all I need to do is some basic rules. Here is the config I am having the issue with.
View 1 Replies View RelatedWhen i create a rule and enable icmp in ASA inside to outside direction to testing purpose, but I can't ping outside address ,
access-list ICMP extended permit icmp any any
access-group ICMP in interface inside
LOGG:::
ping 8.8.8.8
%ASA-3-106014: Deny inbound icmp src outside:122.255.3.1 dst inside:202.124.160.1 (type 0, code 0)
%ASA-3-106014: Deny inbound icmp src outside:122.255.3.1 dst inside:202.124.160.1 (type 0, code 0)
then I have permitted icmp for return path then it works, configs and logs are followed,
access-list ICMP extended permit icmp any any
access-group ICMP in interface outside
LOGG:::
ping 8.8.8.8
%ASA-6-302020: Built inbound ICMP connection for faddr 122.255.3.1/0 gaddr 202.124.160.1/14 laddr 192.168.1.1/14
%ASA-6-302021: Teardown ICMP connection for faddr 122.255.3.1/0 gaddr 202.124.160.1/14 laddr 192.168.1.1/14
I got some issues with my CISCO ASA, the thing is that when I add a new rule on the device this rule duplicate and goes to the bottom. We already tried to delete the duplicate rule but it always show an error.
-Model 5585
-ASA Version: 8.2(5)
-ASDM version: 6.4(5)
I have a firewall enabled cisco 877 with these rules.
Interface Dialer0 IN 10 deny ip 0.0.0.0 0.255.255.255 any 20 deny ip 10.0.0.0 0.255.255.255 any 30 deny ip 127.0.0.0 0.255.255.255 any 40 deny ip 172.16.0.0 0.15.255.255 any 50 deny ip 192.168.0.0 0.0.255.255 any 60 deny ip 224.0.0.0 15.255.255.255 any 70 deny ip 240.0.0.0 15.255.255.255 any 80 permit tcp any any eq 22 (8810 matches) 90 permit tcp any any eq 242 100 permit udp any any eq snmp 110 permit icmp any any echo (6 matches) 120 permit udp any any eq non500-isakmp (3 matches) 130 permit udp any any eq isakmp (1 match) 140 permit tcp any any eq www (26 matches) 150 permit udp any eq domain any 160 permit tcp any any established (6 matches) 170 permit tcp any any eq smtp (2 matches) 180 permit tcp any any eq pop3 (3 matches) 190 permit tcp any any eq 443 200 permit esp any any 210 permit ahp any any
Interface Dialer Out 10 permit ip any any
This rule which is its function?"permit tcp any any established"
I have made a firewall rule that accepts FTP from WAN2 outside to the inside private LAN with IP address specified.But this didn't work.When I added in the forward rules that FTP had to be forwarded to this IP address it worked.I have done some testing but it seems that the firewall rules do not have any priority on the forward rule.If I disable the forward rule i cannot connect with ftp even with a firewall rule made.
View 7 Replies View RelatedI'm trying to configure a second server on my network but whenever I add the static NAT rule, the internet stops working on that computer.
Here's my Cisco ASA configuration:
ASA Version 7.2(3)
!
hostname domain
[Code].....
In the last 8 month I have been upgrated at least 6 Cisco ASA 5505 from 8.2(1) to 8.4(3) without problems, I did a minor changes and all related to rules due a problem with the migration.
View 1 Replies View RelatedWe have a pair of ASA running 8.0 (old) version. The way we create outbound rules is done through ASDM and when we need to open outbound connections to a server in the internet, we create named object with IP address configured manually.But practically , this doesnt work, since the server is a server name which can resolve to multiple addresses. Everytime the server chagnes its IP the ASA rule needs to be updated.Is there a difference if we add rules through CMD prompt as against ASDM where we need to enter IP addresses?
View 3 Replies View RelatedOn my RV042 (I used it for a couple of years now without issues), the DIAG led light amber (steady). It's not documented in the user manual.User manual says only:,Diag (Red) The Diag LED lights up when the Router is not ready for use. It turns off when the Router is ready for use.",Router does not work anymore and I can't access its web page as I used to do before this problem.I did a reset to factory default (reset button hold for more than 30 sec.) but it didn't change anything.
View 1 Replies View RelatedI have a static IP block and need to route to various servers. I know I can use 1:1 NAT or Access Rules and have success with each. The problem is my mail server. When I use 1:1 NAT, the mail is sent from the correct IP - the address of my mail server - and there is no problem with reverse lookups. However, I cannot block any ports when I use 1:1 NAT. I have tried it every way I can think of and even some suggestions in the forums that did not work. No matter how I set access rules, all port stay open in 1:1 NAT.
If I delete the 1:1 NAT rule and use Access rules to open specific ports, the mail server sends out the mail from the WAN address. The reverse DNS does not match and mail server will bounce the mail.
We are moving from a different vendor to ASA 5520s. So far my "training" for Cisco consists of s Cisco press book, some white papers and guides, this website, and a bunch of mistakes. So, I have what is probably a pretty basic question for most folks.
What is the difference between Firewall Access Rules and ACL/ACE? And when to use which?
for example: on my ASA 5520s I've set up an Interface for my internal LAN: 172.16.x.x., a DMZ 192.168.2.0/24, and an interface for the Internet side. The 5520 is set up as a routing firewall betwen my internal lan, DMZ, and Internet.
If I want to allow my internal users Internet access for http and https would I use a Firewall Access rule?For most of my rules allowing outbound access from my 172 LAN and DMZ and inbound access to devices in my DMZ can I mostly utilize the Firewall Access Rules?
I purchased a RV180 router, and would like set the Firewall Access Rules as below
- Action: Always Allow
- Service: HTTP
- Source IP: Any
- Send to Local Server (DNAT IP): private ip (192.168.1.xx)
- Use Other WAN IP Address: Enable
- WAN Destination IP: one of public ip (different of the router WAN ip address)
- Action: Always Allow
- Service: FTP
- Source IP: Any
- Send to Local Server (DNAT IP): private ip (192.168.1.xx)
- Use Other WAN IP Address: Enable
- WAN Destination IP: one of public ip (different of the router WAN ip address)
The firewall access rules no problem within 1 hour after setting. I can access the http / ftp services by the WAN ip address. After several hours, I can't access the services.
I can set the one-to-one NAT rather than use the firewall access rules, but I would like block all other ports, and one-to-one NAT will forward all ports to the private ip address. Administrator > Logging > Firewall Logs , when I enable the settings, where can I get the log of the firewall?
we replaced our PIX525 firewall with an ASA 5540 firewall, and now we see some strange behavior in ASDM.ASDM does not display all the rules, but i see all all the rules in cli.
View 8 Replies View RelatedI am just about to start on a project where we are moving from Old Cyberguard firewalls to ASA 5520 firewalls, any rule base converstion tool that would be able to do a lot of the basic work? And so of the NAT conversions?
View 1 Replies View Related