Question about Van Dyke Technologies SecureCRT With SecureFX (SCTB-0071-0001) for PC

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Protocol version vs. Received version

I'm trying to connect to a router via SecureCRT and i'm getting an error message that says "Required protocol version is 2.0. Received version is 1.5-Cisco-1.25." How can I resolve this issue?

Thanks

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remaker
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SOURCE: SecureCRT - Version 6.2.2 (build

This log shows you are connecting to a Cisco router running SSH protocol version 1, but you have set your SecureCRT to require using SSH version 2.

You either need to either

Set the SecureCRT software to allow connections using SSH version 1

or

upgrade your Cisco device to support SSH version 2.

Posted on Apr 15, 2011

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You'll need to connect via cable to the router to gain access to the security set up page again, or a more drastic method would be to do a hard rest to restore the router to factory state.

Before doing that, you should determine which security protocols are supported on each device that you expect to connect wirelessly to the router. Only those protocols that are supported by ALL devices should be selected on the router. All will support WEP, but it is possible that only some will support more robust protocols such as WPA and others.

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Lastly, you'll need to remember or broadcast the SSID to locate the wireless network when you want to connect to it - and of course - remember the network key.

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The Linksys Wireless router is fine, but your latop is not configured for DHCP (Dynamic Host Configuration Protocol). The computer is connected to the router at layer 2, whereas HTTP (Hypertext Transfer Protocol), sits
atop the TCP/IP (Transmission Control Protocol/Internet Protocol) layer, and seems to be trying to
query the ISP's (Internet Service Provider) network for a nameserver (via DNS (Dynamic Name Service) protocol) that doesn't exist on the ISP's network. Configuring the laptop for DHCP and specifying no nameserver will fix this (the ISP's network will dynamically assign a DNS).

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SecureCRT - Version 6.2.2 (build 263) [LOCAL] : SSH2Core version 6.2.0.263 [LOCAL] : Connecting to 10.252.105.6:22 ... [LOCAL] : Changing state from STATE_NOT_CONNECTED to STATE_EXPECT_KEX_INIT...


This log shows you are connecting to a Cisco router running SSH protocol version 1, but you have set your SecureCRT to require using SSH version 2.

You either need to either

Set the SecureCRT software to allow connections using SSH version 1

or

upgrade your Cisco device to support SSH version 2.

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If that is the case you may forward ports on the router for VPN connection, try to open 47, 500 and 1723 all TCP and UDP protocol.

Here's what you need to do, check the IP address of the computer where you have the VPN software,

here's how:
click start> run> type cmd> hit okay
on the black screen put in ipconfig and check the IP address there,

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> open IE on the working computer on the address bar, type 192.168.1.1

> nothing for username and password is admin in lower case

> then click on the applications and gaming tab on the router,

> and from there, example of how to field that in is like this,

> for aaplication name - VPN1
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> for protocol it is BOTH
> for IP address ex. 192.168.1.XX - 192.168.1.100
> then check enable, do the same thing for the rest of the port.
> save the settings and try it again after.

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i'll wait for your response, thank you and have a nice day!

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Assuming you can get past that error message:
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  • Click on the + to the left of Options to open the item
  • Click on Default Session
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If you can't get past that message, uninstall SecureCRT and re-install it - it sounds as though some of it's configuration data has got corrupted. If you are comfortable doing this, use Windows Explorer, make hidden files & folders visible and then go to
C:\Documents and settings\your-user-name.

For all the following, ensure SecureCT is not running - even in the System Tray.

Look for the SecuerCRT folder in Application Data and Local Settings\Application Data (I can't remember which one it's in offhand). In that folder, there's a folder called Config. Assuming that you don't have a load of connections set up that you don't want to lose, delete the whole folder. SecureCRT will ask you where to re-create it next time it starts.
It's also possible to delete do it this way:
  • in the Config folder, edit global.ini with notepad.
  • Find the line that starts "S:"Auto Session Name"="
  • Delete the whole line
  • Save and close the file
  • Restart SecureCRT

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1 Answer

VPN


the following is from a nice guide i found on the net, see if it works for you: First thing to check is whether your router has any settings for PPTP or IPsec "pass through". These are commonly found in Linksys routers but you may have to hunt around for them on other makes. All you need to do is enable the setting for the VPN protocol that you're using, reboot your router and, if you're lucky, the VPN connection will come right up. Note: Not all routers have these enables and the lack of them doesn't necessarily mean that you can't get VPN working. Open up that Firewall Still no connection? The next step is to try opening some ports in your router's firewall to get your VPN connection made. In each case, you'll need to open the specific ports (and protocol) to the IP address of the computer that you're running the VPN client on. NOTE that port mappings work with only one computer at a time. If you have multiple VPN clients that you need to connect, your router will have to support the VPN protocol that you're using without requiring ports opened. If you're using Microsoft's PPTP protocol, TCP port 1723 is the port you'll need to forward to allow PPTP control traffic to pass. Figure 2 shows the Forwarding screen on a Linksys BEFSR41 set to forward this port to a client with IP address 192.168.5.100. PPTP also needs IP protocol 47 (Generic Routing Encapsulation) for the VPN data traffic itself, but note that this is a required protocol, not a port. The ability to handle this protocol must be built into the router's NAT "engine"?which is true of most present-generation routers. IPsec-based VPN's need UDP port 500 opened for ISAKMP key negotiations, IP protocol 51 for Authentication Header traffic (not always used), and IP protocol 50 for the "encapsulated data itself. Again, the only "forwardable" item here is UDP port 500, which is also shown programmed in Figure 2 to the same LAN client machine?protocols 50 and 51 must be built into your router. Tip: Not all routers are created equal! Some allow only one VPN tunnel to be opened and used by a single client. Others support multiple tunnels, but with one client per tunnel. Unfortunately, most vendors don't make the VPN pass through capabilities of their products clear in their documentation, nor do they have support staff properly trained to provide this information either. In most cases, your only option is to try a router in your specific application, and make sure you can return it and get your money back if you can't get it working. Still not Working? Getting many IPsec-based VPN setups working can be a black art due to the wide variation in techniques used by various vendors. Although IPsec products have become more uniform as the technology matures, your company may use older, more proprietary products that may not be configured with NAT in mind, or require additional ports to be opened in your firewall.

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