• RSS
  • Twitter
  • FaceBook

Welcome to ISAserver.org

Forums | Register | Login | My Profile | Inbox | RSS RSS icon | My Subscription | My Forums | Address Book | Member List | Search | FAQ | Ticket List | Log Out

no network protocols were successfully negotiated

Users viewing this topic: none

Logged in as: Guest
  Printable Version
All Forums >> [ISA 2006 Firewall] >> VPN >> no network protocols were successfully negotiated Page: [1]
Login
Message << Older Topic   Newer Topic >>
no network protocols were successfully negotiated - 19.Jul.2014 9:15:40 AM   
goldwein

 

Posts: 1
Joined: 5.Nov.2006
Status: offline
I've upgraded one old and reliable ISA Server 2004 to 2006 (running on WS2003R2, nothing else runs on that server), it is an edge firewall and VPN provider. Later this year, it will be replaced by Forefront (and new hardware), but now, I need to keep it running. This upgrade was due to devices that require L2TP.

After the upgrade, whatever I do, VPN doesn't work - L2TP, PPTP - from logs I can see user correctly authenticates, gets IP from DHCP server, and then the connection fails, on the following error in Event log (on ISA Server):

*The user [...] connected to port VPN3-4 has been disconnected because no network protocols were successfully negotiated.*

I reset TCP/IP stack, cleared ARP cache, went through all RAS settings I can think of - but this event keeps happening and users can't use VPN.

The only problem I found was in IPRouterManager.LOG:

[2192] 15:43:05: Error adding route, Stack bit == 0
[2192] 15:43:05: ProcessDefaultRouteChanges: Not default route [external IP]/32
[3256] 15:43:05: AddInterface: Adding [user name]
[3256] 15:43:05: ICB number for [user name] is 11
[3256] 15:43:05: ENTERED SetMcastLimitInfo for If ffffffff
[3256] 15:43:05: LEFT SetMcastLimitInfo
[3256] 15:43:05: ENTERED SetBoundaryInfo for If ffffffff
[3256] 15:43:05: LEFT SetBoundaryInfo
[3256] 15:43:05: AddInterface: Added [user name]: Type- 0, Index- -1, ICB 0x1583dc8
[3256] 15:43:14: DeleteInterface: Deleting [user name]

(in the log, [external IP] and [user name] represent actual external IP and user name)

Please, do you have any idea at least where to look, or do you have any experience with such error?
Post #: 1

Page:   [1] << Older Topic    Newer Topic >>
All Forums >> [ISA 2006 Firewall] >> VPN >> no network protocols were successfully negotiated Page: [1]
Jump to:

New Messages No New Messages
Hot Topic w/ New Messages Hot Topic w/o New Messages
Locked w/ New Messages Locked w/o New Messages
 Post New Thread
 Reply to Message
 Post New Poll
 Submit Vote
 Delete My Own Post
 Delete My Own Thread
 Rate Posts