RE: VPN Connection Error 628 and 721 over Linksys

Hi,
Check your VPN server is working by establishing a VPN connection to it from
a workstation inside your network. Use its internal IP address.
If that works it's probably the router is not forwarding GRE protocol 43 or
TCP port 1723 form the internet to your VPN server.

"edisonrus" wrote:

> Help With VPN.
>
> Here is the basic setup.
>
> The office setup:
>
> Two client computers running Win XP SP2
> One Server running Windows 2003 SP 1(Single NIC)
> Internet connection is through a Linksys WRT564G SRX Router
> VoIP with Vonage through a Linksys RT31P2 Router
>
> The VPN server sits behind the WRT54G and the basic configuration is as
> follows:
>
> On the properties page of the VPN server:
>
> General tab:
> Enable this computer as a:
> Router
> Lan and Demand-dial routing
> Remote access server
> All are enabled
>
> Security Tab:
> Windows Authentication
>
> IP Tab
> Enable IP Routing
> Allow IP based remote access and demand dial connections
> Using Static address pool.
> 192.168.1.10 to 192.168.1.20
>
> PPP Tab
> All defaults
>
> Logging Tab
> Log all events enabled
>
> PORT ICON
> WAN Miniport (L2TP) 0
> WAAN Miniport (PPTP) 5
> Rest Defaults
>
> REMOTE ACCESS POLICY
> Day-And-Time Restriction set to default
> Tunnel-Type matches Generic Route Encapsulation
> Point-to-Point Tunneling Protocol
> Windows-Groups matches “VPN Server\VPN Group”
>
>
> EDIT PROFILE
> Authentication TAB
> MS-CHAP v2
> User can change PW
> MS-CHAP
> User can change PW
>
> IP TAB
> Server settings determine IP address assignments
> All other Tabs are default
>
> REMOTE ACCESS LOGGING
> Authentication request is enabled
>
> VPN Server IP Addressing:
> IP 192.168.1.5
> SM 255.255.255.0
> DG 192.168.1.1
> Static DNS Addresses
>
> WRT54G IP Configuration (updated firmware)
> IP 192.168.1.1
> DG ISP
> PPTP Pass-through is enabled
> PPTP 1723 Port is forwarded to VPN Server at 1923168.1.5
> DHCP is enabled
> MTU 1400
>
> RT31P2 (updated firmware)
> IP 192.168.15.1
> DG 192.168.1.1
> Nothing sits behind this. Just the VoIP service
>
> The DSL Line is setup with Vonage.
>
> Remote Clients
> Windows XP Sp2
> Both access through DSL
> One with a Linksys WRT54G Router and the other through a BEFSR41
> PPTP enable and 1723 forwarded.
>
> Client Connection Configuration
>
> General TAB
> VPN Server IP Address
> Dial another Connection first is Disabled
>
> OPTIONS TAB
> Defaults
>
> SECURITY TAB
> Advance (custom setting)
> Data encryption
> Require encryption (disconnect if server declines)
> Allow these Protocols are:
> MS-CHAP
> MS-CHAPv2
>
> NETWORKING TAB
> Unchecked Use default gateway on remote network
>
> ADVANCE TAB
> Tried firewall both Enabled and Disabled
>
> When connecting to VPN Server I get two errors. One client it is Error 721
> and on the other Client it is 628
>
> Both the ISP and Vonage say that I can VPN through their connection.
> On the VPN server, I get an Event ID Warning Type error 20209-Source Rasman
> It is telling me that a connection has been established but the VPN
> connection cannot be completed. It suggests that the most probable cause is
> that somewhere along the line, GRE is not being permitted.
>
> Please, any help will be most Appreciated
> ~e
>
>
>
>
.

Relevant Pages

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