Cisco Firewall :: 2811 Running Advance Enterprise V 15.1-2
Jan 7, 2012
I have a Cisco 2811 running Advance Enterprise v 15.1-2. I've just configured it using ccp for internet access (on 2 lines) and a firewall. The configuration is pretty much all default and I used the ccp wizard to create a 'medium-secure' firewall. I have 2 blocks of public IP addresses for my internal network and for the DMZ. The 2800 is configured as follows:
- 2 x default routes. one to each dialer.
- 6 zone pairs as follows:
- ccp-zp-self-out (seems to mostly work... I can ping any IP address from a console but not a hostname)
- ccp-zp-in-out (works fine, both interfaces seem to be in use)
- ccp-zp-in-dmz
- which by default set to ccp-permit-dmzservice
- which inspects ccp-dmz-traffic
- which matches group dmz_traffic and has a class map dmz-traffic
- cnc-zp-dmz-out which is set to ccp-inspect. (my own zone pair to allow systems in the DMZ zone to see the internet. This works fine.)
- ccp-zp-out-dmz (works fine. I can see my web server from any system outside my own network)
- ccp-zp-out-self (which, I guess allows anything permitted to get to the 2811)
Internet works from within the DMZ and in-zone. The outside can access my dmz servers. The inside can access most things on the outside using the firewall rules.
1) Although I have the zones set up to allow the same access from in->dmz as I do from out->dmz and out->dmz seems to work, I cannot seem to access anything in the dmz from the inside.
2) When setting up the firewall I ticked the box for 'allow PPTP clients to make connections from the inside' (or something like that). I cannot seem to make a PPTP connection from my workstation.
I have scoured the internet for guides, looked through these forums & the cisco configuration guides and experimented all day but still cannot figure this out.Do I need a special route between the inside and dmz? I have seem references to static routes on ASA firewalls but the command 'static (inside,dmz)...' does not work on a 2800 series router.
I have a particular site that is causing me trouble, this site is connected in a back to back configuration using 2811 at CO and 2621XM at CPE. The CO end is also the CO for 3 other sites so has a total of 4 wics installed (WIC-1SHDSL-v2), these other sites also have 2621XMs for the CPE.
The problem i am getting is when one site in particular transfers large files to/from client machines, the CPU on the 2811 jumps to 99%:
CPU utilization for five seconds: 99%/98%; one minute: 26%;
We have open a division in the UK and are using DSL as a back up to a T1-E1, so I was going to use a standard DSL Modem but thought the WiC-1ADSL-I-DG would be better. However I can seem to get the card up and running. Here is the interface config and sh int atm.
interface ATM0/1/0 ip address dhcp ip access-group 102 in ip inspect SDM_LOW out [code]....
I need to replace an existing ASA 5540 with a new ASA 5525X. I would like to pre-stage and configure the new box with the existing config, migrate license and export certificate files before swapping it with the old one during a change window. The new firewall will run 9.1 on deployment. Now the same 7.2(4) cannot just be copied over to 5525X running the minimum 8.6 version. There is a Web based tool available at [URL] according to Cisco documentation but the page does not load for me (Cisco intranet only tool ?). Is there another tool for automatic conversion ?
We have Cisco CSS 11501 and connected in One-Arm way.Currently there are 4 source sending traffic and 3 server to receive the request. We are using Advance-balancing with Source IP. So the ratio become 2:1:1 or 1:2:1 or 1:1:2.But our target is to do the load balancing in equal ratio.
I have a Cisco 2811 router and when I turn of the router the running config is lost. I have to the following to get the router running of the start-up config settings.
I have an ASA 5510 in a live environment. Up til a short while ago I could access this via the ASDM and ssh. However I can no longer connect to it via eithier. When I access It via SSH I get a disclaimer saying the following
*** You have entered a restricted zone! Authorized access only!!! Disconnect immediately if you are not authorized user! ***
It then cuts me off.
When I try to access the ASDM I get the following
The firewall is running all its services without a problem and I can ping the device without any issues. Also none of the config (to my knpowledge has been changed). I set up a console session and http server enable is still there with
I tried the "Advanced Routing" Feature over the RV-042 V3 Dual WAN VPN Router , And the New IP Subnet i added ( 10.0.7.0 ) in the Static Routing Table does NOT Appear in the Routing Table of the Router. Please review the attached Print Screen for both the Static Routing Entry Configuration & the Routing Table of the RV-042 Router.
I have CISCO 5510 firewall running with IOS ASA821-k8.bin.My company has purchased another ASA5510 with IOS ASA843-k8.bin.We need to run both firewalls in Active/Standby mode.
If I upgrade the IOS of old firewall to ASA843-k8.bin the the running configurations does not work properly.It does not pick the network objects and NAT rules as they are configured with OLD IOS and running.
Or if I restore the configurations of old firewall at New ASA the result is worst. Even firewall with new IOS does not show any Access Rule and NAT rule and does not supprt network objects.
I try to implement the url filtering feature on a cisco 2811 router and whenever i enable the parameter map patterns the router retuns (after some time)
%Unable to compile obj regex.[code] The result is that the router blocks ALL webpages without giving a block page message.
I have a 2811 ISR configured to provide the following services to my network:
Internet access to LAN users Cisco Call Manager ExpressSite-to-stie VPN to 3rd party networksVPN server to provide VPN access to remote usersSecurity Zone configurationsStatic NAT configurations Now I recently just got the ASA5510 device and I am not sure how to go about with the setup, whether to put the ASA in between the internet and the ISR (Internet - ASA - ISR - LAN), or put the ISR in between the internet and the ASA (Internet - ISR - ASA - LAN)?
While i know I can move most of the config unto the ASA, i know that the CME cannot be moved, hence I would like to do the setup such that users on the network still have access to CME.
I was going through the release notes on cisco website of ASA 8.4.6 and ASDM 7.1.3 but I just can not find a definitely answer: if ASDM 7.1.3 can run with 8.4.6?
I'm having an issue configuring NAT on an ASA running 8.3. 've managed to configure NAT from the Inside interface to the DMZ, using PAT, so that the traffic is hidden behind the IP of the DMZ interface. This seems to work ok.
The problem I have is when I try to configure a rule for traffic that originates in the DMZ back to the Inside. I can't seem to get any traffic to flow from the DMZ to the Inside, and sometimes I manage to stop traffic flowing in both directions!
What would be the best way to configure the return traffic from the DMZ to the Inside.
I am pretty new to the configuration of a DMZ and I have the task of setting one up.I have a Cisco 2811 Router running Cisco IOS Software, 2800 Software (C2800NM-ADVENTERPRISEK9-M), Version 12.4(24)T1, RELEASE SOFTWARE (fc3), 2 FE interfaces.One FE is connected to the WAN, with a loop back interface configured with the public IP for Internet access in the office.The other FE has 2 sub interfaces configured, one for data and the other for voice traffic.Users within the office are configured to use the data VLAN to access the internet through the WAN.
Now we are setting up some new services and we require to have DMZs setup.I want to setup 3 zones now that the different servers would reside in. How can i achieve this using the existing infrastructure I have?I have an idea to create more subinterfaces and assign them to the zones, but I am still not sure how this would play out. I have been on this for the whole day and unable to make significant progress.
I have attached a drawing of our network. We have two 6509's connected to two Cisco 2811 (onsite) that the ISP owns. I am trying to get one side up and running before I worry about redundancy and so forth. For this reason I have set all the HSRP priorities to 110 on the left 6509. I have HSRP running between the ISP routers and V LAN 101 of the 6509's. This works as I can ping yahoo and Google just fine from the 6509 switch. I can't get from my laptop connected to V LAN 23 to the internet.
It doesn't even attempt to NAT as there are no translations. I have public address assigned by my ISP configured between the ISP routers and my 6509 on V LAN 101. I then have the public address assigned to V LAN 100. I configured V LAN 100 on the switch and V LAN 100 on the FWSM with the IP address in the drawing. I have my NAT statements and route in my FWSM according to the drawing as well. On the switch, I have a default route to X.X.12.19 which is the VIP between the ISP routers. I can reach anything on the inside of my network, including the old network addresses from V LAN 23.
1. Is it best to do NAT at the FWSM or should I do it on the MSFC connected to the ISP routers? 2. If I have to configure NAT at the FWSM, does this requires me to extend the public network down to the FWSM? 3. I'll take any examples you may have as I am stuck.
I'm trying to run ZBFW on a 2811 with IOS version 15.3(T4) and I'm running into a strange issue I'm not quite sure how to troubleshoot.
I have 3 zones, internet, local, and ssl-vpn.The rules I'm trying to enforce are: all traffic from SSL-VPN can go to anywhere, anywhere can go to SSL-VPN. Anything originating from local can go out. Certain ports can come in for DMZ services (http, https, imap/s, pop3/s, submission).
After rebooting the router and applying f0/0 and tun0 to internet, f0/1 to local, and virtual-template 1 to ssl-vpn things work fine. But after a while I stop being able to connect to servers at the high end of the subnet. (I have .20 to .26 configured with the services, .20, .21 work fine always, .22 and up stop responding). Remove interfaces from the ZBFW, no problem at all. Apply ZBFW, traffic stops.
I'm seeing dropped sessions in the log on zone-pair local-to-internet , invalid flags with ip ident 0 which I think is outbound traffic attempted for no inbound inspect entry, but everything should be allowed out, and the traffic is to port 80 which is allowed by 'match protocol http' on the inbound policy.
Edited config attached (remove passwords and stuff) Last few log lines are at the bottom.
I have 30 switched in my corporate network it’s all up and running all switches running by default configuration and connected to WS-C4506 core switch our dhcp server pooling 192.168.100.1/27 network. Now we need to configure new Vlan for finance department this department has more than 200 users. If my server distributes 192.168.200.0 range ip can vlan2 automatically assign ip 200.0 addresses to finance department.All switches running default config no ip address assigned.
I'm replacing a new ASA 5505 due to a corrupted flash. On the original unit, I had the ability to SSH into the device using TeraTerm with no problems. While configuring the new device, I entered commands to enable SSH into the unit.
I have a Cisco ASA 5520 running 8.2.2 with the VPN Plus license. I am wondering what is the max number of sub-interfaces you can have on a physical interface. I know on the 5505 it was 20 sub-interfaces if you were running the Security Plus license. What is the magic number for the 5520. I have hit 20 sub-interfaces on gi0/1 interface and now I am starting to run into problems with sub-interface #21.
I have VPN up and running between two sites. Both sites have Cisco ASA 5505. I can ping across the devices from both networks. But I cannot remote into the servers on the other network.
I'm generally pretty good with VPN issues and with SSL certs, but this is my first rodeo with VPN and certificates together. I've got a Cisco 2811 router running IOS Firewall (12.4(25)) and for a while now, I've had VPN clients connecting using PSK's and XAUTH. In order to tighten security, we'd like to move away from PSK's with Aggressive Mode and use certificates with Main Mode.I've been trying to use the Cisco 2811 as the CA, rather than use a Microsoft server or third-party provider. I think I'm pretty close to getting this to work, but something isn't quite right. My VPN client software does connect to the 2811, and I get prompted for the XAUTH creds. If I supply the right creds, I do see in my VPN log window that I've gotten assigned an IP address from the inside VPN pool, my split tunneling rules come through, but the VPN disconnects almost immediately and I never get a chance to try any pings or to send any other types of traffic. [code]
I have attached a sterilized copy of the 2811's current config (2811_sterile.txt), a copy of the 2811's debug output when the VPN client tries to connect (vpn_client_connect_sterile.txt), and a copy of the VPN client's log with IKE on High and Certificates on High (vpn_log_sterile.txt).FWIW, the 2811 is NOT behind NAT, but my VPN client IS behind NAT. However, I have tried using a direct connection with the VPN client and it didn't seem to change much so I'm not convinced this is a NAT issue.Again, I've never used a Cisco router as a CA and I've been battling this problem for several hours now so the 2811's config may have a lot of unneccessary lines in it at this point.
I'm looking into upgrading my WAN link to 100Mb via Fast Ethernet link. I'm waiting to hear from ISP about what exact technology they use, but according to my manager they will be coming in over fiber and then terminate to copper. I currently have 2811 in production with two T1 cards bundled together. 2811 has basic configuration with only 2 ACLs. I have ASA 5510 for NAT, Ipsec and other services. What router or networking device (layer 3 switch, such as 3560G perhaps??) should I use to accomodate 100Mb link? It seems that 2811 will not handle that kind of bandwith..In short the max recommended bandwidth limits for the 28xx series are as follows:
2801--2 Mbps 2811-4 Mbps 2821-8 Mbps 2851-12 Mbps
I don't want to create a bottleneck and am looking for appropiate solution to accomodate 100Mb link. Also, could ASA 5510 become a bottleneck in my scenario?According to Cisco docs ASA5510 can handle 300Mbps of firewall througput, but I'm not sure how it'd work in production...
Attached is our network diagram showing the details of our remote office and the corporate side which are connected via private fiber. The workstation (10.10.102.84) can ping the 10.20.0.31 IP address of the PBX but not the .30 address and I know if we can’t ping it we can’t remotely manage it. The 2811 router, ASA 5510 and the 6509-E can ping both IP addresses on the PBX. The ASA logs the error "Denied ICMP type=0, from laddr 10.20.0.30 on interface inside to 10.10.102.84: no matching session" when the workstation pings the .30 address.
We changed the default gateway of the PBX from 10.20.0.2 to 10.20.0.1 (2811 router) and we were able to ping both IP addresses from the workstation but the SIP trunks from the Internet stopped working (they NAT to the .30 address). Because calls may be forwarded from the PBX to the corporate network (via IP phones) we will eventually need to change the default gateway to10.20.0.1 and still need the Internet SIP trunks.
My two questions are, how do we resolve the issue of pinging the .30 address from the workstation and then when the time comes how do we resolve the issue with the SIP traffic reaching the .30 address when we change the default GW of the PBX to the 10.20.0.1 address of the 2811 router.
I came across this site. I wanted to produce a better incoming ACL at home and work to prevent known bad sites
Here is their list of the Top 10 Global Spammers is out. The biggest surprise on the list is Korea, as it takes over the number one global spammer spot from China. With the improved high speed internet infrastructure in Korea and ease of network access, who knew Korea would be on the rise.
Here is the complete Global Spanner Top Ten List for the first quarter
[URL]
Korea China India Russia Turkey Viet Nam Ukraine Brazil Venezuela Pakistan
When I sort the list, it is over 16k lines of ACL!
My question relates to what performance limits I would find. Can I actually put that many lines in an ACL? Will the router choke and do any other work
I have attached the sorted ACL list for you to review
Any of the following router lines will accept a list that large and still run acceptably?
I Have an asa 5510 running code 7.2 configured with ssl vpn,ssl vpn users able to connect to to portal which i have configured with the required resources,but the thing is that these ssl users unable to upload files to cifs shared directory , although they have full access to the shared folder
I want to run two syslogs, one to Loglogic for compliance and the other to Solarwinds for network administration. Currently the firewall is setup for just the one syslog device. If I add an additional device ie further IP in the config for the Loglogic box will there be any noticeable differences in the performance of the firewall, does affect the cpu utilisation, or memory in any way.
I will be supporting a new ASA 5585X running 8.4 and I was wondering if it's possible to apply an ACL globally instead of it as an access group that is applied to a specific interface as in or out ... below are the interfaces and ACl.
We just changed over to Comcast Business and after changing the outside interface to new IP and setting static route. I have access to internet and everythig appears to be good, However asdm will never fully load, alway stuck at 17% or 77%, and I always see "parsing running config".
When I do a show run it will not fully load either, always stop at certain out put. 5 seconds after pulling the Comcast cable out both asdm and running config will load fine.
I have a Cisco 5505 that had its disk erased (erase:disk0) and now I am trying to load a new image (822 or 813) from a tftp server.
From the ROMMON prompt I have configured the relevant parameters and run a tftp command.
The tftp transfer seems to complete successfully but then it gets stuck on "...loading".
I have tried different versions of IOS and I always experience the same problem, even though, with older versions of IOS (7.x), the device manages to reboot itself but then it crashes with the following error:
"Error : Uncompression of the image failed. invalid compressed data--format violated"
Could it be an hardware related-issue or a licensing problem maybe? or am I missing anything obvious?
also, with regards to the license: once restored, how do I get my 50 users license back?
I am about to replace the supervisor engine in our pair of distribution switches in our data center. We currently have a FWSM module installed in each of my distribution switches running 3.1(20) code. The old sup720 are running 8.6(4) and the mfsc are running 12.2(17d)SXB11a. I am wondering about the compatibility of running the FWSM with the same code after installing the new VS-S720 modules. I do not plan on configuring virtual switch yet and did plan on upgrading the FWSM to 4 code train but just not immediately. Will I be able to run my FWSM using the current 3.1(20) code after I install my new VS-S720 running in native mode?
If I have to upgrade the FWSM then I need to know if I have to upgrade the module in each distribution switch at the same time? Furthermore I do not believe that the FWSM 4 code is supported in hybrid mode, which means that I will have to convert to native before upgrading to FWSM 4 before I install the VS-S720 in one of my distribution switches. Currently the FWSM modules are in active/standby mode in different chassis.
I had planned to install the VS-S720 module in one of my distribution switch and do the other installation a week later. I would rather not have to convert to native and upgrade the FWSM modules in both distribution switches during the first switch upgrade.
cnDS02> (enable) sh mod Mod Slot Ports Module-Type Model Sub Status --- ---- ----- ------------------------- ------------------- --- -------- 1 1 16 1000BaseX Ethernet WS-X6516A-GBIC no ok 2 .... Please refer to Detail Note. cnDS02> (enable) sh mod