Hi i want to read the configuration stored in cisco router without using puTTY or hyper terminal (serial interface) purely using C# and retrieve the configuration files. is this possible?
You must see something like this in your pcap file. RST flag means reset.
192.168.3.10 192.168.1.23 TCP [TCP ACKed lost segment] 8004 > 60179 [RST, ACK] Seq=1 Ack=45320348 Win=0 Len=0
Don't look for exact same output as it will be different only RST part will be the same. If you haven't played with wireshark before I don't recommend it as it might be confusing.
You don't need to plug in directly all you have to do is following:
1) Use another computer with no AV installed.
2) Disable firewall.
3) Make sure you can reach the router IP.
4) Try tftpd64 again.
all the computers in my lab has AV installed and firewall enabled. I tried the solution you give but could not work
I also tried using cross cable to plug the router to my computer also encounter the same error.is there anyway i could check the port 69 is it block by the firewall? or is there any other solution you could advice?
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You should be able to obtain the config directly from the device if you have SNMP enabled.