I have set up pptp link in RIP routing between my lab mt 750 routers. After configuring the pptp link , and I enable arp-proxy so i can ping and have connection on the local lan PCs. I can ping and tracerout ok, the interesting thing that i want to know is that even when i don’t ping or tracerout the is some activities on the PPTP link.
I want to know what kind of activities on that PPTP link are happening ,that is:
what protalcals are using the pptp link
what services send/receive data on that link,
who sends the data what address
Is there a tool in MT to check this? if yes how to configure/use the tool?
PPTP use TCP port 1723 for connection establishment and use GRE Protocol (IP protocol ID 47).
PPTP is using for layer 3 communication so you can use layer 3 protocols on that link.
You can use Torch tools to see what was send or receive on your Link.(right click on your PPTP link and select torch)
Not sure what you’re using PPTP for - but you should know that the encryption is now conclusively broken - really, really, really badly.
Anything using MS-CHAPv2 [or any version of MS-CHAP really, though we already knew CHAPv1 was bad.] is horribly broken. Use something else.