?
Solved

Change VPN IP of Hub Cisco 871

Posted on 2014-02-04
10
Medium Priority
?
345 Views
Last Modified: 2014-05-07
Simply put I'm not that good on Cisco devices, especially ones where the majority of changes need to be done by command line.  I have Office A, B, & C.  Office A is the hub, Offices B & C are spokes.  There is a DMVPN between them, and only Office A is changing IPs (its getting a new ISP).  Is there a simple way to change the VPNs on the spoke/remote office side to reflect the new IP?  Thanks.
0
Comment
Question by:altitudetek
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 5
  • 4
10 Comments
 
LVL 26

Expert Comment

by:Soulja
ID: 39832876
Outside of changing the physical ip address on the wan interface on the spoke and then changing the NHRP map ip address on the spokes, I can't think of anything else you would need to change.

Post a sanitized config of the hub and at least one spoke. That may help us more.
0
 
LVL 5

Expert Comment

by:Martin Tarlink
ID: 39832882
You probably need to change  peer xxx.xxx.xxx.x to reflect your new address.

Could you login to your Router and do #show run command
and paste it here ( for security reason change your IP addreses to aaa.aaa.aaa.aaa bob.bbb.bbb.bbb and ect)

Also here you have sample configuration
http://www.cisco.com/en/US/products/ps5855/products_configuration_example09186a0080ab7073.shtml

Cisco 817 is End-of-life
but here you have Configuration guide for Cisco 819
http://www.cisco.com/en/US/docs/routers/access/800/819/software/configuration/Guide/11vpnezvpn.html
0
 
LVL 26

Expert Comment

by:Soulja
ID: 39832911
Static peer address are not usually used in DMVPN. It defeats the whole purpose of using it.
0
Manage your data center from practically anywhere

The KN8164V features HD resolution of 1920 x 1200, FIPS 140-2 with level 1 security standards and virtual media transmissions at twice the speed. Built for reliability, the KN series provides local console and remote over IP access, ensuring 24/7 availability to all servers.

 

Author Comment

by:altitudetek
ID: 39834198
I was able to walk the client (we are an MSP) through getting his WAN interface changed to the new IP as well as the subnet and gateway.  All computers are up as far as Internet goes, but I sill need to change the VPN configs at the two client sites.  I'll report back later with running configs from both of the remote sites.
0
 
LVL 26

Expert Comment

by:Soulja
ID: 39834219
Look under the tunnel interfaces for the nhrp map command.  You should find the current wan ip. That is what you want to change.
0
 
LVL 26

Accepted Solution

by:
Soulja earned 2000 total points
ID: 39834223
This is for the spoke sites.
0
 

Author Comment

by:altitudetek
ID: 39834224
Ok, I will look there and report back.
0
 

Author Comment

by:altitudetek
ID: 39834240
ROUTER#show tunnel endpoints
 Tunnel200 running in multi-GRE/IP mode

 Endpoint transport AAA.AAA.AAA.AAA Refcount 3 Base 0x85E97C14 Create Time 34w0d
   overlay 10.172.255.200 Refcount 2 Parent 0x85E97C14 Create Time 34w0d
   Tunnel Subblocks:
      tunnel-nhrp-sb:
         NHRP subblock has 1 entries


Is that what you were looking for?  This is from one of the spokes.
0
 

Author Comment

by:altitudetek
ID: 39834241
Where AAA.AAA.AAA.AAA = the old IP of the Hub.
0
 
LVL 26

Expert Comment

by:Soulja
ID: 39834465
Sh run int tunnel x
0

Featured Post

Need protection from advanced malware attacks?

Look no further than WatchGuard's Total Security Suite, providing defense in depth against today's most headlining attacks like Petya 2.0 and WannaCry. Keep your organization out of the news with protection from known and unknown threats.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Use of TCL script on Cisco devices:  - create file and merge it with running configuration to apply configuration changes
Concerto Cloud Services, a provider of fully managed private, public and hybrid cloud solutions, announced today it was named to the 20 Coolest Cloud Infrastructure Vendors Of The 2017 Cloud  (http://www.concertocloud.com/about/in-the-news/2017/02/0…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
As a trusted technology advisor to your customers you are likely getting the daily question of, ‘should I put this in the cloud?’ As customer demands for cloud services increases, companies will see a shift from traditional buying patterns to new…
Suggested Courses

743 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question