local policy IP - router head DMVPN
Hey guys,.
On my head DMVPN router (3845 - 151 - 4.M2 running), I learn a default route to the inner core that I want to talk the distance learning via EIGRP (internet access is through the tunnel and thru head f / w). And to avoid having a static route configured for remote public IP address, pointing to the internet router, I tried to use a local policy to set the next hop for all internet router-to-router VPN traffic. However, when I delete the static electricity to the remote control, I lose the remote peer and it seems that local politics is not engaged. Any help would be appreciated...
interface Loopback0
10.103.255.1 the IP 255.255.255.255
!
interface Tunnel10
bandwidth 10000
IP 10.103.254.1 255.255.255.0
no ip redirection
IP 1400 MTU
no ip next-hop-self eigrp 1
property intellectual PNDH authentication xxx
dynamic multicast of IP PNDH map
PNDH id network IP-100
property intellectual PNDH holdtime 600
the PNDH IP forwarding
IP tcp adjust-mss 1360
no ip split horizon eigrp 1
source of tunnel GigabitEthernet0/1
multipoint gre tunnel mode
tunnel key 1234
Tunnel ipsec DMVPN-PROFILE protection profile
!
interface GigabitEthernet0/0
Routed to core description link
IP 10.100.160.105 255.255.255.252
automatic duplex
automatic speed
media type rj45
!
interface GigabitEthernet0/1
Description link to outer segment
1.1.1.4 IP address 255.255.255.0
automatic duplex
automatic speed
media type rj45
!
Router eigrp 1
Network 10.100.160.104 0.0.0.3
Network 10.103.254.0 0.0.0.255
Network 10.103.255.1 0.0.0.0
passive-interface default
no passive-interface Tunnel10
no passive-interface GigabitEthernet0/0
EIGRP router id 10.103.255.1
!
vpn-traffic extended IP access list
allow an esp
allow udp any any eq isakmp
permit any any eq non500-isakmp udp
route vpn-default allowed 10 map
Default route description to the Internet for encrypted traffic
vpn traffic game - ip address
set ip next-hop 1.1.1.2
!
IP local policy default map route vpn
Dave,
I think we'll do the responsible thing here and separate the termination and the traffic tunneled in VRF (VRF-lite).
You can put gig0/1 in a VRF and leave everything on a global scale (do not forget to add "tunnel vrf... "on the tunnel interface.
Result - separation overlay and transport - you can have two default routes, one for connectivity to the rays, one for traffic to the tunnel.
Marcin
Tags: Cisco Security
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Original title: the local policy of this system does ot allows you to open an interactive session
I get this error message when you try to access a remote desktop connection. The local policy of this system does ot allows you to open an interactive session
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.....
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!
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names of!
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preshared authentication
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preshared authentication
3des encryption
md5 hash
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!
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nairtime Fyp1BJjsayu55viz username encrypted password
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k.k.k.k group of tunnel ipsec-attributes
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!
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match default-inspection-traffic
!
!
type of policy-card inspect dns preset_dns_map
parameters
maximum message length automatic of customer
message-length maximum 512
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inspect the preset_dns_map dns
inspect the ftp
inspect h323 h225
inspect the h323 ras
inspect the rsh
inspect the rtsp
inspect esmtp
inspect sqlnet
inspect the skinny
inspect sunrpc
inspect xdmcp
inspect the sip
inspect the netbios
inspect the tftp
Review the ip options
inspect the icmp
!
global service-policy global_policy
context of prompt hostname
no remote anonymous reporting call
Cryptochecksum:e658de2652c6702c61a0cc854a47415f
: endYou are missing a nat exemption, follow the example below, replace IP subnet object-group, depending on your environment.
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Thank you
Rizwan James
-
Site to site VPN with router IOS
I want to create a VPN site-to site on the Internet. On the remote site, aside from the VPN to the head office, there should be no traffic not allowed in internal from the Internet to the network and that there should be no traffic from the internal network to the Internet allowed. The internal network will run a private 192.168.x.x address range.
I'm going to use a Cisco 2811 router integrated of services on the remote site and this will last an IPSec VPN that will end a hub at Headquarters. I understand that this router has an IOS and IPS firewall built in.
Would I be right in thinking that because I don't want to have access to the Internet (except VPN) or should I configure IOS firewall features on the router? And there is no point in the configuration of the features IPS wouldn't?
My thought is that only an entry in list of unique access to deny pi a whole applied inbound to the interface that connects to the Internet would be the best strategy. I think that the command "sysopt connection permit-ipsec" should allow the VPN to form even with the ip address to deny any any ACL (or is it just a Pix command? If Yes, then I have to allow ESP and UDP 500 (ISAKMP) from the public address of the hub at Headquarters to allow the VPN to form wouldn't I?).
Think I'll probably expand slightly the access list to allow the icmp Protocol, ssh and https traffic from the IP address of firewall seat outside so that I can monitor the remote site and access it safely if the fail VPN.
And I wouldn't need one access list on the interface connected to the internal network I would like because the range of addresses would be not routable, so they would not be able to initiate connections to the Internet (all the trffic to the remote site is specified under a valuable traffic to bring up the VPN)
Use one of the IOS Firewall inspect commands or the IPS would be useless and have no effect in this case wouldn't it?
I really just need to know if the ip address to deny any any ACL on the external interface on the remote site is the best solution (and the simplest), and whether it will be safe.
We used to use fiewalls Pix for remote VPN site to site, Amazon refuse incoming connections on the external interface by default but now I have been informed that these series 2800 routers will be used later, so I would get my thoughts straight and be able to build safe to do the same work all existing PIX are doing (they are all installed for just the VPN at Headquarters as in) the first paragraph).
I would like any advice or thoughts on the subject. I don't know there must be a ton of people who put routers for the same purpose.
Thank you in advance.
Pete.
Pete
I did a lot of implementations site VPN to another using IOS routers. They work very well. Based on my experience I offer these comments and I hope that they will help you:
-you don't want a list of incoming access on the external interface, but you want more in it than simply refuse an ip. There is no permit-ipsec sysopt connection in IOS so you want to certainly allowed ISAKMP and IPSec/ESP. I suggest that you also want to allow SSH. I would like to allow ICMP but only starting from the address space of the network head end. I do not allow HTTPS since I generally do not allow the http server on the router. If you want HTTPS then certainly enable it. To facilitate the ping and traceroute on the remote I frequently allow icmp echo-reply, timeout and unreachable port from any source.
-I want to put an inside interface access list. There are certain types of traffic that I don't want to send from the Remote LAN. I have usually refuse any trap SNMP or snmp for LAN devices and refuse out of the local network icmp redirects. I also often configure RPF controls inside interface to catch any device which is misconfigured.
-If you want to allow SSH when the VPN is not active (and I highly recommend that you do) then you will probably need to configure at least 1 (and maybe more) users and password of the router ID. And you want to configure authentication on the vty use local authentication if the head end authentication server is not available.
-I'm not clear from your description if you plan to run a dynamic routing via the VPN Protocol. I wish I had a dynamic routing protocol because I want to announce a default route to the remote control via the VPN. I do not locally configure a default route on the remote router. This way if the VPN tunnel is up there is a default route pointing to the tunnel and if the VPN tunnel is not up then there is no local route by default and users on the remote database can not access the Internet. It is a simple and very effective method to ensure that all user traffic must pass through the central site.
-regarding the routes defined on the remote router, my approach is that I define a static route for the endpoint of the tunnel to allow the tunnel to implement and I set up static routes for the subnet to the head of line I can SSH. And I do not configure other static routes the on the remote router.
-You probably want to disable cdp on the external interface and also to disable the proxy-arp (and I don't make any ip unreachable).
-There is frequently a problem when using VPN site-to-site with fragmentation. If a device on the local network sends a frame of maximum size, and then the router needs to add additional headers for IPSec, then the frame is too large and requires fragmentation. I like to use tcp adjust-mss ip to control the chunk size for TCP traffic and avoid any problems with fragmentation.
-I don't think you want to set up the firewall or IPS from the features of IOS on the 2811.
I hope that your application is fine and that my suggestions could be useful.
[edit] after posting my response, I read through your post again and realize that you make to a VPN concentrator. The approach I have proposed on the execution of a routing protocol works for me because I usually have a router IOS in mind. It would not work to connect to a hub.
HTH
Rick
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