Go Premium for a chance to win a PS4. Enter to Win

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 1288
  • Last Modified:

Microsoft NLB cluster through Cisco VPN tunnel

We have 2 Win 2003 servers in a Unicast NLB Cluster.
Each server has it's own IP address and the cluster has it's own IP address.
We have established a Cisco VPN tunnel between and 877 and an 878 router using the SDM interface.

Remotely, we can access each server individually but not by the cluster IP address.
Remotely, we can ping each server but not the cluster IP address.
Locally, everything works fine, and the cluster IP address responds fine.
0
nmxsupport
Asked:
nmxsupport
1 Solution
 
sabioitCommented:
Are you pointing the NAT in your firewall to the NLB IP ?
0
 
lrmooreCommented:
Check the default gateway setting on the cluster IP config
0
 
nmxsupportAuthor Commented:
I am requesting closure on this question.
After speaking with Cisco there was 2 main issues.
1) the mtu packet size needed to reduced from 1500 on the routers - apparently RDP is affeced by this?I've not heard of this but this got IP working.
2) because RDP was already being natted on the external interface it was not being passed back through the vpn tunnel, we had to add an exception to the natting rules/vpn tunnel to get rdp to return back through the vpn tunnel if it started there.
0
 
Vee_ModCommented:
Closed, 500 points refunded.
Vee_Mod
Community Support Moderator
0

Featured Post

New Tabletop Appliances Blow Competitors Away!

WatchGuard’s new T15, T35 and T55 tabletop UTMs provide the highest-performing security inspection in their class, allowing users at small offices, home offices and distributed enterprises to experience blazing-fast Internet speeds without sacrificing enterprise-grade security.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now