Tag Archives: port

Windows PPTP VPN with Cisco Linksys RV042

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Cisco Linksys RV042

Today I was setting up my little lab, I decided to create a Windows PPTP VPN for my lab network which should give me more comfort. First I installed the Network Policy and Access Services Role and did the configuration. I also enabled PPTP Passthrough, added a port forwarding and a firewall rule to my Cisco Linksys RV042. I know the RV042 is not really a big deal, but you have a lot of jobs and if you don’t really need a lot of network options, like me in my lab, this is a pretty cool device.

I now tested the VPN Connection with my Windows 7 Client. Error 800 and 807 which basically means no connection through the firewalls with the VPN Server.

I checked again the Firewall Configuration on my RV042, and could not found any mistake. After a quick search with Google and Bing ;-) I saw a lot of posts with the same problem and the Linksys RV042.

After some search I came to a solution, I deactivated the SPI Firewall on the Device, and this caused the problem. After activating the SPI Firewall again, the error was gone and the VPN worked.

Network Cisco iOS Workshop @KTSI

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Small CISCO Network iOS Workshop at KTSI

Set Switch IP

Switch#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#interface vlan 1
Switch(config-if)#ip address 10.123.1.254 255.255.255.0
Switch(config-if)#exit
Switch(config)#exit
Switch#wr

Port Mirroring


Switch(config)#monitor session 1 source interface fastEthernet 0/1
Switch(config)#monitor session 1 destination interface fastEthernet 0/24
Switch(config)#no monitor session 1

MAC Address Security


Switch(config)#interface fastEthernet 0/1
--->Switch(config-if)#switchport port-security mac-address sticky
Switch(config-if)#switchport mode access
Switch(config-if)#switchport port-security
Switch#show port-security

Activate Port again


Switch(config-if)#shutdown
Switch(config-if)#exit
Switch(config-if)#no shutdown

Spanning Tree


Switch(config-if)#spanning-tree portfast
Switch(config)#no spanning-tree vlan 1v

CDP deactivate


Switch(config)#no cdp run

Activate Telnet


Switch(config)#line vty 0 15
Switch(config-line)#password ktsi
Switch(config-line)#login
Switch(config-line)#transport input telnet
Switch(config-line)#transport output telnet

Webbrowser Access


Switch(config)#ip http server