I know that it is possible to reverse-telnet to a specific serial port on some routers by telnetting to a specific tcp port. For example:
to reverse-telnet to Interface Async 5 with a tty line identifier of 5 you would telnet to the routers local IP address at port 2005
I'd like to have the same capability with vty ports.
I have a router that uses Cisco Lock-and-Key authentication to add a dynamic access list entries for any host ip which logs into port vty 0. I also want the ability to log into the router itself to establish an EXEC session. To do this currently I must open a second telnet session before the one to vty 0 terminates.
To make a long story short here is how I'd like it to work.
move Lock and Key authentication to port vty 4
telnet to <router IP> port 20004 to go login to port vty 4
generic telnet to <router IP> port 23 will rotate through preceding vty ports 0 through 3 as usual to establish EXEC session.
Is this doable? If so provide a sample configuration and/or instructions.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...