Cisco VPN :: 877 - Crypto Map With NAT
Mar 7, 2011
I have this situation, I need to establish an IP sec communication to another site but I need to identify all my packets sent, as a different networks as my local one. for example: my local network is 10.5.0.0/24 and I need to sent packets as 10.6.0.0/24. I suppose that I need to do Nat with this IPs. But in this router Nat is already applied to outbound traffic to Internet. How can I apply this NAT to crypto map only?
My router is a Cisco 877 with 12.4 IOS an this is the relevant configuration, crypto map vpn it´s used to sent traffic to second site.
crypto isakmp policy 2 encr 3des authentication pre-share group 2crypto isakmp key xxxxxxxxx address XX.XX.XX.XX
crypto ipsec transform-set vpn esp-3des esp-sha-hmac
crypto map vpn 1 ipsec-isakmp set peer XX.XX.XX.XX
[ code]....
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Jan 11, 2013
I'm trying to get several VPN tunnels up. It seems that only 1 map can be assigned to the WAN interface (fa4). Is this true or is there an 'extended' map like ACLs?
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Jun 26, 2011
I have to connect one of our it labors with some ec2 instances in amazon vpc. I downloaded a configuration file from amazon which starts with the command
crypto isakmp policy 200
My router tells me that he does not know crypto isakmp.
I searched on the internet and found that i have to install a specific license, but unfortunately i cannot find which license i have to install.
The show license command show following licenses
AdvIpServices active
AdvSecurity active
advsecurity_npe, ios-ips-update, waas_Express no state displayed
ssl_vpn active but eula not accepted
I found that i can accept the eula license with license boot module c880-data technology-package SSL_VPN command
But this command is also not available on my device. getting the crypto isakmp command working?
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Sep 4, 2012
I have a 2650XM 16mb flash, 64 mb ram. 12.2(12a). now I want to buy 12.4(25d) with crypto. How much is it? And where can I buy it ?
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Aug 8, 2012
i have 2951 ISR but i cant configure encryption it have UniversalK9 IOS and i cant find any other ios that will support crypto map?
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Aug 5, 2012
i have Cisco 1941 router with following IOS image:Cisco IOS Software, C1900 Software (C1900-UNIVERSALK9-M), Version 15.0(1)M5, RELEASE SOFTWARE (fc2) below mentioned commands are not working :
crypto isakmp policy 5
encr aes 256
authentication pre-share
group 2
what could the issue ? do i need to change the IOS image.
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Jun 13, 2012
This setting is correct?
PIX Version 6.3(3)
interface ethernet0 auto
interface ethernet1 auto
[Code]...
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Aug 21, 2012
I have a Cisco 881 ISR (CISCO881-SEC-K9) and have the advanced security license installed and enabled/active and in use (see screenshot). However, the isakmp crypto module is not available.
[code]....
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Jul 4, 2011
I have applied a crypto map (fo ipsec vpn) on the dialer interface (for PPoE connection) in Cisco 2800; every time when the router restarts the crypto map is removed from the dialer interface even though i save the configuration every tim when i apply the map on the interface. Is there any way that the crypto map remains there on the dialer interface after the restart of router.
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Aug 18, 2011
In a basic VPN l2l scenario using ezVPN, server behind NAT device, client using 3G. What would be the reason to have in the output of the show crypto ipsec sa, a current peer different from remote crypto endpoint on the server ?
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Feb 16, 2011
In my test lab , I have a CISCO 1841 with a AIM-VPN/BPII-PLUS board , everything was working fine , until I would like to see the difference with and without the accelerator.Sins the moment that the IOS told me that he will change to SW accelerator instead of HW accelerator , I can not make it work anymore.I have a copy of the full working configuration before I did this , I have put it back on my router but still NO VPN. [code]
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Feb 18, 2011
I have a network architecture like the one HERE but with alot more spokes (32). Would my cisco 3925 be able to support so many crypto maps?
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Feb 27, 2012
I am trying to configure Crypto PKI in ciscio 2911, Once i configured the root certificate for the router , i can see the validity date wrongly but the same certificate is fine in the other devices . [code]e when i am trying to configure the local certificate.
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Feb 27, 2013
New to the forum and not much Cisco IOS experience let alone on the security side of things. I know how to navigate the IOS and can do basic switching and routing just fine. My company currently has a DMVPN setup w/ about 10 tunnels going back to the hub. We have 4 more sites they want me to setup and I keep getting stuck at the crypto maps. I have been reading about VPN's, DMVPN's , etc. for days now but can't find any examples of how we are configured. The priority of our crypto maps start at 65536 and go up. Default max is 65335 from what I have read, and I cannot assign a priority that high statically. [code]
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Sep 11, 2012
I have a ASA 5510 that has something weird going on I have just added a base config where you can access on a inside interface but for some strange reason after I disconnect i have to ping inside interface first before I can connect via telnet or SSH and then regenerate therecrypto key
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Sep 3, 2012
I ahve a requirement to configure static crypto for 1800 site and I need to configure on two sepaarte interfacs at spoke site which means I need to configure 1800*2 = 3600 peers at central site. The challenge I have is due to load balancing , the traffic dynamic crypto can not be used since traffic may be initiated from Dc on other link which may get dropped incase not encrypted.
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Jan 13, 2013
I have just received a new cisco 2901 and started on its configuration. when I started configuring VPN tunnels, I saw that non of the crypto commands are available.
The router runs on iOS 15.1.From what I read, people refer that the router needs to past a license activation or something like that. When I run show verison - i do see "none" under most of the categories.
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Dec 12, 2012
I have a cisco 887 connected as temp measure to a 3g device via a fast0 port. all works fine. VPN comes up...but the moment i apply the crypto map to the vlan.. DHCP stops allocating ip address. I have remove irrelevant config ( dialer, atm etc as they not been used)
config below
p dhcp excluded-address 10.29.80.253 10.29.80.254
ip dhcp excluded-address 10.29.80.1 10.29.80.229
!
[Code]......
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Sep 27, 2012
Just looking at a new clients setup and they have a ISAKMP vpn to the old security company I am trying to remove...I am fairly new to cisco, I actually know how to setup the ISAKMP policies, acl's etc but never had to completely remove one before All I can find is Clear Commands which seem to just flush the config not actually delete any of the policy etc...Its not that urgent as all passwords are changed on the domain and the cisco, the usernames have been deleted as well.
#show crypto isakmp peers
Peer: ** Port: 500 Local: **
Phase1 id: **
#show crypto isakmp policy
Global IKE policy
[code]...
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Aug 24, 2012
We have an HQ site with a 2811 (w/ADVSECURITYK9-M) acting as the firewall. We currently have 1 ASA5505 that has an established ipsec l2l VPN. I'm trying to connect a 2nd ASA, but I've noticed I can only add 1 cryptomap to the outside interface. A show ver shows 1 Virtual Private Network Module... Surely that doesn't mean only 1 VPN?Do I use one crypto map, and add a second 'set peer' & 'match address' inside the crypto map itself?
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Nov 16, 2011
I replaced old cisco router 2811 with new one 2921 , all works except crypto map VPNs routers can ping each other , ACLs are not applied to outbound interfaces show crypto isakmp sa is empty after i make same configuration on a new router 2921 config.
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Feb 14, 2013
we have a L2L-VPN-Tunnel beetween our Headquarter (ASA5520 with Network 10.100.1.0) and a branch office (Cisco1841 with network 10.100.10.0 ). This works fine for years, but now we wish to change the configuration so that ALL traffic from the branch office goes over the vpn-tunnel. My question: How I have to change the crypto acl to reach this. Below the relevant parts of the branch route.
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Jan 12, 2013
We have 6 WAN routers connected through ISP MPLS cloud , we need to implement GET VPN between these WAN routers.We have 2 Key servers (1800 routers) , and the WAN routers will act as Group Members (6 GMs)
The attached configuration files are for working configuration for typical GETVPN (crypto map applied on WAN interface)
In Key server configuration , the crypto isakmp command is using the WAN interface IP address of each WAN router (172.16.x.x) , and since that the KS routers are connected to local backbone (VSS) , they should be able to reach 172.16.X.X , and therefore the subnet 172.16.X.X is advertised to the local network (check GM configuration file under eigrp - redist connected )
This is what our customer want to avoid ! they do not want 172.16.X.X to be advertised to the local network .I know It is possible in GETVPN configuration to configure ,the crypto isakmp command to use loopback address's of the WAN routers instead of the WAN IP , but in this case the crypto map must be applied to the loopback address , and this requires all traffic to be encrypted and decrypted to go through the loopback interfaces on all WAN routers .
i was wondering what is the best solution for this case , I though to use the below config on the GM's
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May 16, 2011
We run a hub&spoke network with dual GRE tunnels from each spoke site to seperate independant adsl routers at the hub.IPsec is enabled on each tunnel with crypto maps and then QOS is enabled with pre-classify for voice traffic priority. We also have defined a class for Citrix traffic by identifying port1494 traffic out and anything bound for our citrix servers IPs.Ok so the problem is that once the encryption comes up on the tunnels, the citrix programs wont connect. Take the crypto map off the tunnel and all works fine.
Here is the relevant config
crypto isakmp policy 1 encr 3des authentication pre-share group 2crypto isakmp key **** address *.*.*.*
crypto isakmp key **** address *.*.*.*
crypto map SDM_CMAP_1 1 ipsec-isakmp description Tunnel to hub1
set peer *.*.*.*
set transform-set ESP-3DES-SHA match address 104 qos pre-classifycrypto map SDM_CMAP_1 2 ipsec-isakmp description Tunnel to hub2
set peer *.*.*.*
set transform-set ESP-3DES-SHA match address 105 qos pre-classify
[code]....
I deliberately weight EIGRP to favour Tun0 and have Tun1 as a failover. I was thinking of Route-mapping the Citrix traffic to Tun1?
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Feb 19, 2012
I have ASA5540 with asa712-k8.bin.
There is a plenty of tunnels ended and it works.But i have one tunnel, which doesn't work.I tried turn on "debug crypto isakmp" and it show this: RECV PACKET from 10.200.79.161 ISAKMP Header. [code]
So there is problem with IPSEC and with no matching SA, but i don't know which one.Then i try to turn on "debug crypto ipsec 255" but it displays nothing. [code]
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May 23, 2013
I have a Cisco 3640 router with IOS v.12.3(16) It does not recognize the crypto commands.
#sh version Cisco Internetwork Operating System Software IOS (tm) 3600 Software (C3640-I-M), Version 12.3(16), RELEASE SOFTWARE (fc4) Technical Support: [URL] Copyright (c) 1986-2005 by cisco Systems, Inc. Compiled Tue 23-Aug-05 20:03 by ssearch Image text-base: 0x60008B00, data-base: 0x60D36000
ROM: System Bootstrap, Version 11.1(20)AA2, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1) ROM: 3600 Software (C3640-I-M), Version 12.3(16), RELEASE SOFTWARE (fc4)
router01 uptime is 3 hours, 43 minutes System returned to ROM by power-on System image file is "flash:c3640-i-mz.123-16.bin"
[code]....
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Feb 25, 2012
I have setup ipsec VPN in my C2811 router but when "show crypto isakmp/ipsec sa" shows nothing. Remote end point is an "ASA5520". Does it indicates that the remote ASA5520 not yet configured?
Code...
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Jul 15, 2012
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.
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Jun 4, 2013
I am trying to set up vpn tunnel between ASA and router C2921 for site-to-site routing. This was described on many sites. However I do not have required option under crypto command.
g1c1router1(config)#crypto ? key Long term key operations pki Public Key components
g1c1router1(config)#crypto
There are no crypto map etc options.
Some people suggested that I need crypto IOS. I have:
boot system flash:c2900-universalk9-mz.SPA.152-4.M3.bin
license udi pid CISCO2921/K9 sn FGL171910C1
Do I have to generate some keys? How do I do it? crypto key generate ?
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Jul 14, 2011
ASA is the server, 2651 is the client. Phase 1 is negotiating, after entering XAUTH on the 2651, the ASA is showing:
Rejecting IPSec tunnel: no matching crypto map entry for remote proxy 10.250.2.0/255.255.255.0/0/0 local proxy 10.10.3.0/255.255.255.0/0/0 on interface Outside
Not sure what this means in this instance, the maps are setup the same as the article below. I guess I more expected that sort of error if this was a static tunnel and there was an ACL issue. I don't have a lot of knowledge on the Easy VPN with the ASA. [code]
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Apr 19, 2011
I have been looking around and I can not find the " crypto isakmp policy " command on this Cisco Router 1941. I just wanted to setup a regular IPSEC Lan to Lan tunnel and surprise, the command is not there. Do I have the wrong IOS? I thought that a K9 image would do the trick. [code]
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Apr 25, 2013
find what feature set is supported on this IOS S45EUK9-33-1511SG The client requires Layer 3 functionality so do i need to apply any license with it or it will perform layer 3 routing (like rip, ospf, bgp, ipv6, ospfv3) ?
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May 4, 2011
There is very little and quite diverse Information regarding the if, where and how of a Nexus 5000 or 5500 series Switch and support for IEEE 802.1AE Link Layer Encryption (also called MACsec).
For example: the official FAQ denies that the Nexus 5500-series supports 802.1AE at all, while the data sheet says that only "downlink ports" are supported (host access).
On the Nexus 7000 platform the 802.1AE link layer encryption is part of TrustSec (feature cts) and much better documented.
The Question is: If and under which circumstances (configuration, L3 modules, license, NX/OS version) does a Nexus 5k or 5500 series Switch support 802.1AE on 1G or 10G interfaces that are directly connected to a Nexus 7000 (with the necessary cts feature licensed/configured)?
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