We have a remote office that needs to be connected to the central office through a site to site ipsec VPN.At the central site there is a 2811, and at the remote site there is 1841.Most of the traffic will be VoIP traffic and small amounts of data.
I need to setup some QoS that would firstly prefer the VPN traffic over internet access and then inside the VPN I need some QoS that will preffer VoIP over data.
I have 2 questions.Om my cisco 2811 (IOS 12.4(15) T9 IPBASE W/O Crypto) i am using 3 interfaces.And i have a pool of Global addresses: 200.x.z.97-200.x.z.126 255.255.255.0
FastEthernet 0/1 description WAN interfaceip nat outsideip address 200.x.y.253 255.255.255.0
GigabitInterface 0/2/0description DMZ interfaceip nat insideip address 10.0.0.1 255.255.255.0
GigabitInterface 0/3/0description LAN interfaceip nat insideip address 192.168.0.251 255.255.255.0
[Code]....
I am having problems with CPU load on 2811 with AIM-VPN-II. There is a GRE+IPSec over E3 WAN link and the authentication is done using RSA, but even that there is around 10Mb/s of traffic I have a 70 - 85%. I also have another WAN link with router 2811 that doesn't have a AIM-VPN, and that one reach 95% CPU once the traffic goes up to 5 Mb/s.
crypto isakmp policy 10
encr aes
authentication rsa-encr
[Code]....
Are there any recommendations that RSA authentication is not supportted for hardward encryption? It worries me, becouse have more sitautions like this.
I have an ASA5505 with 8.4 software used on a business DSL account.This means I am running PPPoE session to the provider and am then given an Inside Global subnet /29.I have various servers NATed to specific IP's then have the DHCP users NAT with overload to another of my inside global addresses. When I try to establish an IPSEC tunnel to any of my inside globals and monitor I get an access denied message but there is nothing that is blocking.If I determine my PPPoE IP address I am able to extablish a IPSEC session to that but cannot exchange traffic. Not that I want to use that IP anyway because that PPPoE Session IP changes and only my inside globals are static.I spent several hours on this and cannot put my finger on it. Do I need to allow VPN to the INSIDE interface?
View 2 Replies View RelatedI have a 2811 that is my HQ router with a 10MB pipe. I was trying to configure a IPSEC tunnel to connect to my ASA that has access to our companies internal servers on the 10.33. and 172.16.31 network. I am having a problem getting phase 1 to even come up. I've looked over the configurations and unless i'm overlooking something I dont see what could be keeping it from at least completing phase 1
Below are the configs.
2811-CFG
crypto isakmp policy 10
encr 3des
hash md5
[Code] ....
I am trying to get a 2811 to accept two IPSec peers however can only get one working at a time. I have setup fa0/0 and fa0/1 with their own public facing IP addresses with crypto maps associated to each interface however can only establish connectivity to one interface at any one time.
Relevent configuration below:
crypto isakmp policy 2
encr 3des
hash md5
authentication pre-share
group 2
lifetime 28800
[code]....
I'm trying to make a very plain and simple network with the ASA 5505, I've strated from scratch over a dozen times triyng to find where I'm going wrong. My main goal is to simply create an IPSec VPN connection to my ASA 5505 and simply ping and connect to devices with the "inside network", so far I can easily create and establish a IPSec VPN Connection, but up to this point, I cannot successfully ping or access a single device on the ASA 5505 inside network.I've taken, create the IPSec profile with the ASDM wizard, add exemption for the VPN IP Pool, add access-list from this Cisco link, url...All this and I can't make a single connection to the inside network. [code]
View 7 Replies View RelatedI am trying to setup a L2L IPSec VPN between cisco VPN3020 concentrator and Cisco 2811 something is not working and I don't understand why.I describe my situation in detail my router has 2 interfaces
External interface Fa 0/1 ip 193.P.Q.R
Internal interface Fa 0/0 141.G.H.254
Lan on internal interface is 141.G.H.0/24
remote VPN concentrator has 2 interfaces
Public interface 131.A.B.C
Private interface 131.A.I.E
I have to set up L2L so that host 141.G.H.10 can talk to host 131.A.H.D whici is behind the VPN concentrator my router config:
crypto isakmp policy 3 encr 3des hash md5 authentication pre-share group 2crypto isakmp key * address 131.A.B.C!crypto ipsec transform-set presid-set esp-3des esp-md5-hmac !crypto map presid-map 5 ipsec-isakmp set peer 131.A.B.C set transform-set presid-set match address presid!interface FastEthernet0/1 ip address 193.P.Q.R 255.255.255.252 duplex full speed 100 crypto map presid-map!interface FastEthernet0/0 ip address 141.G.H.254 255.255.255.0 duplex auto speed auto!
ip access-list extended presid permit ip host 141.G.H.10 host 131.A.H.D
ip route 0.0.0.0 0.0.0.0 193.P.Q.S
Then I configured VPN3020 accordingly creating a lan to lan profile with the proper IKE proposals ecc ecc when interesting traffic is matched by VPN acl (presid) I see this messages in the VPN concentrator logs:
57101 02/23/2011 15:49:05.310 SEV=4 IKE/119 RPT=4033 193.P.Q.R Group [193.P.Q.R]PHASE 1 COMPLETED 57102 02/23/2011 15:49:05.310 SEV=4 AUTH/22 RPT=3935 193.P.Q.R User [193.P.Q.R] Group [193.P.Q.R] connected, Session Type: IPSec/LAN-to-LAN 57104 02/23/2011 15:49:05.310 SEV=4 AUTH/84 RPT=11 LAN-to-LAN tunnel to headend device 193.P.Q.R connected 57110 02/23/2011 15:49:54.820 SEV=4 IKE/123 RPT=1093 193.P.Q.R Group [193.P.Q.R]IKE lost contact with remote peer, deleting connection (keepalive type: DPD) 57112 02/23/2011 15:49:54.820 SEV=5 IKE/194 RPT=3778 193.P.Q.R Group [193.P.Q.R]Sending IKE Delete With Reason message: Connectivity to Client Lost. 57114 02/23/2011 15:49:54.820 SEV=4 AUTH/23 RPT=14 193.P.Q.R User [193.P.Q.R] Group [193.P.Q.R] disconnected: duration: 0:00:49 57115 02/23/2011 15:49:54.820 SEV=4 AUTH/85 RPT=11 LAN-to-LAN tunnel to headend device 193.P.Q.R disconnected: duration: 0:00:49
and from router side I See this with show crypto isakmp sa
131.A.B.C 193.P.Q.R CONF_XAUTH 5 0 ACTIVE
but the status got stuck in CONF_XAUTH state and then disconnects?
I'm now trying to implement a IPsec VPN network over transport mode in my simple network environment.I got two Cisco 2811 routers connected each other and each router hosts a client PC running Windows7.
I have finished the configuration on both routers and make them running over transport mode.However, as what it should be, transport mode indicates the communication between two end stations (two PCs) the client PC (install or configure something) to make the network fully works?
I cannot get this to work properly and I've even had a Cisco engineer from TAC set-this up... and it literally broke my inside network. I have a VPN range of addresses..x.x.x.x on the Outside that needs access to a server on the Inside at y.y.y.y. HTTPS/443 connectivity. I need to NAT my VPN subnet/pool in order to talk to the inside host, as that host will not accept traffic from my VPN subnet, but obviously, will accept traffic from Inside my private network.
The Cisco tech entered the following static NAT statement to "fix" the problem - nat (outside,inside) source static VPN Inside-Network destination static Host-y.y.y.y Host-y.y.y.y For whatever reason, whenever this is configured on my ASA 5550 v8.3(2)25 the Inside interface starts proxy arping and assigns all IP addresses on my private network with the MAC address of the Inside interface.
The y.y.y.y is on a remote, routed network within my private, corporate MPLS network. My Inside private network (Inside-network shown in the static NAT above) is x.x.x.x. Not sure why this happens, but it kills my entire network and I have to jump through hoops to quiesce the network and get everything back to normal.I've tried to Dynamic-PAT/hide the VPN range behind the Inside interface through ASDM and that seems to do nothing.The NAT statement above will break my network. How to NAT this connection without killing my Inside network? Or, on how to properly hide my VPN subnet/pool behind my Inside interface and back to the VPN subnet/pool.
My router is Cisco 2811 with IOS version 12.4(22)T1. It had established IPSec with another peer (203.*.*.250 shown below) for long until recently we make it re-establish IPSec VPN with another peer (203.*.*.30 shown below). It showed that the new sa is active but the result still showed there were 4 deleted SAs. The 4 obsolete sa entries won't vanish no matter what I do i.e. reset the interface, re-create crypto map, clear all sa and etc.
From numerous testings we knew that the VPN doesn't work even the desired sa is there remaining active. I reckon it has something to do with those deleted sas ( i mean it is supposed to show only the last one if it is working fine ). I don't know how it would be come like this as we did pretty much the samething on other VPN routers with no problems.
setting up IPsec for a DMVPN between a 2811 and 2951s in a test lab. I have enabled IPsec on the hub (2811) but I am unable to do so on either of the 2951s. After researching, it seems that I may have the incorrect IOS for this, but I am at a loss which IOS I should be using. Currently the 2951s are on "c2951-universalk9-mz.SPA.151-2.T2.bin" and the only crypto options are(config)#crypto ?
ca Certification authority
key Long term key operations
pki Public Key components
while on the 2811 I get:
WIN-T(config)#crypto ?
ca Certification authority
call Configure Crypto Call Admission Control
ctcp Configure cTCP encapsulation
dynamic-map Specify a dynamic crypto map template
engine Enter a crypto engine configurable menu
gdoi Configure GDOI policy
[code]...
These are all hand me downs?
I have a very basic lab site to site vpn setup where I have a ASA 5505 running v7.2(4) on one side and a cisco 2811 on the other side.
What's my issue?
I can't seem to ping from cisco router to the 'inside' network of ASA (see config below) and can't seem to ping from ASA packets leaving the 'inside' interface to cisco router even w/ an ICMP ACL permit outside in. However I'm able to ping within ASA inside network & ping cisco 2811 side w/ packets leaving ASA 'outside' interface just fine.
example:
-------
ciscoasa# ping inside 10.20.20.1 (to cisco loopback1 from ASA inside)
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.20.20.1, timeout is 2 seconds:
[Code].....
I have a asa and Cisco 2811, needs to build a site-to-site ip sec tunnel between them. Due to a requirement need to encrypt inside traffic, i need to apply on the inside interfaces on both devices to build the tunnel.
I don't see a problem but just want to check if it would work on terminating on Inside interfaces on both ip sec peers.
I'm trying to configure hairpinning on my Cisco 887VA VDSL router, so all LAN users can connect to the server using SMTP port 25 which is also in the same LAN subnet, using external router address, which is assigned to dialer1 interface.Traffic comming in from outside works fine.
External IP: 1.1.1.1/29
PC address connecting to the server: 192.168.101.28
Server address: 192.168.101.200
IOS: 15.1.4M1
[code]....
I'm running tcpdump on the server on port 25 and... nothing happens. The traffic is not going through.One thing that I've notices in debug ip packet is this line:
s=1.1.1.1 (Vlan1), d=192.168.101.200 (Vlan1), len 52, rcvd local pkt
shouldn't source be internal vlan1 IP - 192.168.101.1?
I tried any type of combination and just couldn't make it works. Only PPTP works well. Whether Apple iOS IPSec VPN is supported or not?
View 11 Replies View RelatedBeen reading up on IPSs some and some sources say the IPS goes inside the FW some say it goes outside. I know the inside is easier to tune and more secure, what are ya'll's oppenions on where it should go and why? (I will say most of them say IPSs on the inside and outside, but I figure that's something of a marketing ploy)I kinda like inside the FW to keep it a bit more safe and to avoid the stuff the FW will kill by default that's out gunking up the internet.
View 5 Replies View RelatedI'm seeing a TON of traffic in my ASA logs (via ASDM) indicating the following:"Duplicate TCP SYN from inside: (valid internal address of one of our laptops)/50164 to inside: (address on our other subnet, still trying to trace it)/9100 with different initial sequence number"This looks like an attack to me, likely someone's downloaded something they shouldn't have and got an infected laptop. Why it's trying to "call home" to something inside our network is what puzzles me, though.Is there any VALID reason I would see these sort of messages in my log?
View 3 Replies View RelatedMy exchange server should have an outside interface ending in .82 which is one of public IP's assigned to it.Inside 192.168.168.250 -> Outside x.x.x.82 How can I configure this in ASA 8.4(1)?
View 3 Replies View RelatedI have a 891 router I have been testing some things on. I have been able to successfully telnet to it in the past with no problems. Just yesterday I was trying to set an interface to have an IP of 10.10.10.2 which I realized was an IP I had forgot to exlcude from DHCP and it was handed out to the computer I was using to telnet in. So I wrote in the exlcude commands and did an ipconfig -release ipconfig -renew on my PC that had the 10.10.10.2 IP. After the renew I was given 10.10.10.7 (put in a few more excludes).However the release dropped my telnet connection and afterwards I was completely unable to telnet in, getting the error that says I cannot open the connection on port 23. I had made some changes to my entire config beforehand which had it switch to use a new public IP. I never saved the changes and did a hard reset by unplugging the router to get my old config back and see if I could telnet after that. Still could not get in, same error. Well I went through and remade my entire config to use the new public IP. My 10.10.10.7 PC can access the internet, DNS, ping the router, all just fine. Still can't telnet. I remade my line/vty config and made sure it matched up with a config I had on another router. Still can't telnet. Last thing I did was go in and manually clear all open line connections. All that is left is an idle 0 con 0 line that it wont let me close. Still can't telnet.What the **** is going on with this thing? I am completely at a loss to explain why I cant telnet. It must be something in my ACLs that I am missing?
View 2 Replies View RelatedI have inherited a PIX 525 environment and I need to document a lot of stuff to catch-up on what is going on. I was gathering IP address information and ran "show interface outside" and "show interface inside" and noticed the same IP assigned to both. I checked the MAC address and they are different. This IP is also listed as the Management IP. So I am sort of confused. What condition would warrant both the inside interface and outside interface along with the Management IP having the same IP?
The PIX and the hosts it comms it monitors do live in a VLAN controlled by a Brocade switch which also is our gateway out.
Setup as follows:
Cisco ASA 5510
Inside 172.17.101.249
outside 5.5.5.2
DMZ 192.168.100.1
I have an internal server 172.16.1.202 that is PAT to 5.5.5.103 to allow RDP connections. - This works fine from the internet.I have now been asked to allow our guest wireless (192.168.100.0/24 - DMZ) to access this same external connection.We have 2 cisco controllers, with the guest controller "anchored" in the DMZ.I cannot get this to work.Both the DMZ and inside NAT their internet connections to 5.5.5.2.
configure my Cisco ASA5510 (asa version 8.3.1) so that one of the host (e.g.192.168.8.20) behind management interface can ping to the other host (e.g. 192.168.2.246) behind OUTSIDEinterface. I tried modifying the ACLs, NATs and ICMP statement, but still failed[CODE]
View 19 Replies View RelatedI have a ASA 5510 with asa8.4(2) and asdm6.4(5)205. Have a new basic config, nothing special at this time. I just cannot seem to get from the inside to the outside. From the outside interface I can ping, so I have a good Internet connection. [code]
View 3 Replies View Relatedi have cisco router 1811 , i make port forwarding for my mail server , so from outside i can access to the mail server via my mobile but inside lan i cannot because i use my global ip address at my mobile config .
View 12 Replies View Relatedconfiguration of my ASA 5590 i am trying to give access to tcp ports 50,000 to 60,000 from DMZ to Inside interface
View 2 Replies View RelatedI have ASA5550 ruuning Version 8.3(1) with inside and outside interfaces as below [code] On the inside : I have a server (10.20.10.36) that need to be accessed from an outside host (Y.Y.131.34) , so I have the below NAT/ACL rules. [code] is it right that I have to add two ACL entry for outside host to the NATed IP of the inside server , then again add another ACL entry from the same outside host to the private IP of my inside server o get this communication done?
View 7 Replies View RelatedI'm setting up a VPN in order to share files between two locations. I'm not sure it's the best solution, but he insists on using his Cisco ASA 5505 Firewall via a clientless VPN. His set-up is a simple residential cable modem (Motorola SurfBoard/TimeWarner) set in DMZ mode, the Cisco ASA, and an Ubuntu server.
The Clientless VPN is set up, as are the user groups, and bookmarks. I'm able to browse to the firewall's internal interface IP (https://192.168.1.1) and log in to the Clientless VPN portal, and from there, I can access all of the plug-ins I've configured (CIFS, VNC, etc). The problem is that I cannot connect from outside the local area network.
I think it's something very basic that I'm missing, like a NAT rule. I've tried adding some, but they always seem to interfer with the NAT rule allowing users to connect, via the internet, to the Apache web server (port 80) running on the Ubuntu machine behind the ASA Firewall.
Like I said, I'm not sure this is the best solution for him. Using an ASA seems like overkill for something that can be accomplished with some software, but he and I are both fans of Cisco, and, as I said, he is adament about using this set-up. If it comes down to it, I'd like to be able to honestly tell him that I exhausted every resource in trying to find a way to make this work for him before giving up and going to "Plan B".
I have deployed a read only domain controller in our DMZ as part of a domain-related project. That machine needs to be able to reach domain controllers on our internal network. To do so, it should traverse our ASA 5510, going from the DMZ Interface (security level set to 60) to the Inside Interface (security level set to 99).
I've created an ACL as following (alerting hostnames in the example):
access-list dmz_access_in extended permit ip host dmz.rodc.domain.local object-group int-domain-controllers
I've read in various spots that you have to create a NAT when traversing security levels, going from a less trusted interface (DMZ) to a more trusted one (internal.) Since this link will carry domain traffic, we do not want to create a real translation. Thus, I created a stand-in NAT that points to its own IP as follows:
static (dmz,inside) dmz.rodc.domain.local dmz.rodc.domain.local netmask 255.255.255.255
Long story short, the connection fails. I'm able to access other hosts in the DMZ and on another interface configured with the same security level (which I've explicitly allowed), but trying to go from the less-trusted DMZ to the more-trusted internal fails.
A Cisco ASA running 8.2.5 with 3 interfaces: Outside (Sec lvl 0)/-nternet IP / DMZ (Sec lvl 2)-192.168.8.0/24 / Inside (Sec level 100)-192.168.1.0/24
An ACL on the DMZ which looks like this:
access list DMZ_IN permit ip 192.168.8.0 255.255.255.0 any
access list DMZ_IN deny ip any any
access-group DMZ_IN in interface DMZ
global (outside) 1 interface
nat (DMZ) 1 192.168.8.0 255.255.255.0
Nat Control is not enabled (by default) There is no nat exemption, static identity nat or any nat of any kind set up between the Inside and DMZ.The question is: Will the DMZ network be able to initiate connections to the Inside network or will only outside (internet) access be permitted?
A) No, inside access will not be permitted, only Interenet access will be permitted, because there is no NAT exemption or Static Identity NAT between the lower level security interface (DMZ) and the Higher level security interface (Inside), regardless of the DMZ ACL rule with a destination of ANY.
B) Yes, access to the Internet and the Inside can be initiated because NAT control is disabled and there is an ACL that permits DMZ traffic to 'ANY' destination.
I have a PIX-525 with an UR license. I was trying to get my VPN to work from my iphone over the weekend but to no avail. I then changed the interface to the inside to see if my iMac could connect and bingo! It worked. I then tried to connect via inside interface with my iphone and it worked.
I connected a PIX-515e and, using the same settings, can connect to the outside interface via my iPhone.
Now, to answer the pressing questions, yes I changed the server IP address in my IPSEC client settings to reflect the outside and inside interfaces as I was testing each one. I was using a preshared secret. Yes, the secret was entered correctly and they all matched...yes, the tunnel name was entered correctly. I was using local user database for authentication with username/password (i.e. no certificate authorization to make things simpler for debugging). I changed the syslog to debugging and I see absolutely no errors when trying to connect my iphone to the outside interface (i.e. turning wifi off so I'm on my 3G data network). The only thing I see is where my iphone hits the outside interface and it does a teardown (or whatever its called) but that's it.
Why would this work like a charm with my PIX-515e and not my PIX-525? Could the VPN accelerator card in the 525 be at fault? The 515e does not have the aecellerator card. why I can esablish a VPN connection on the inside interface but not the outside?
I recently upgraded my asa from 8.2 to 9.1 (reconfigured from scratch - didnot convert old config) and everything seems to be working fine except for communication between my INTERNAL network and my DMZ. Here's my config below -
ASA Version 9.1(1)
!
hostname ZEPPELIN
domain-name MIWEBPORTAL.com
enable password XXXXX
[Code]...
I think the subject gives a good first impression of what I'd like to achieve.Anyway i'll give a little more context.I'm running a Windows Home Server in my LAN and I would like to use it's functionalities (especially the streaming) features from "anywhere" using the same URL.My is a Linksys WRT160Nv3 running on the DD-WRT v24-sp2 firmware.I've already setup the necessary port forwardings, as most of the WHS sites run on ports 80 (http) and/or 443 (https) and my isp is blocking all ports < 1024 (I know it suck, but nothing to do about)Anyway, outside my network (friends home, work, ...) I can access my home server browsing to ://xxx.homeserver.com:10080 or https://xxx.homeserver.com:10443What I want is that this (external) DNS also works when i'm inside my network (so when I'm at home).
Is this possible?I want this because on the home page of the WHS web interface, I have some links (for example to sabnzb, or the webpage of my raid controller, etc etc, but they all point to http://xxx.homeserver.com:These url's (with the external dns) are not working when i'm inside my lan.I'm not an export but i'm quite sure it's a DNS issue.Some more info:When i do an nslookup xxx.homeserver.com I see the (external) static IP that has been assigned to my router.When I do a ping to xxx.homeserver.com I also get a reply from the (external) static ip that has been assigned to my router.