Reverse telneting to a console port
All, Can anyone tell me how to setup reverse telnet on a 2511 to connect to the console port of another router? I have the octal cable with RJ45 directly plugged into the console port of another. Is a x-over needed on this cable? I can't seem to find how to do it on CCO. I did notice that if I have the first 3 lines connected to routers, and do a port scan on the 2511, I don't see it listening on ports 2001-2003. If I unplug the RJ45s from the other routers, the port is listening. Here's my partial 2511 config: interface Loopback0 ip address 172.16.1.1 255.255.255.0 no ip directed-broadcast ! . ! line con 0 password cisco login transport input none line 1 modem InOut transport input telnet stopbits 1 speed 38400 flowcontrol hardware line 2 16 modem InOut transport input all stopbits 1 flowcontrol hardware line aux 0 line vty 0 4 password cisco login ! SH LINE 1 looks like this: 2511# sh line 1 Tty Typ Tx/RxA Modem Roty AccO AccI Uses Noise Overruns Int * 1 TTY 38400/38400 - inout --- 0 0 0/0 - Line 1, Location: "", Type: "" Length: 24 lines, Width: 80 columns Baud rate (TX/RX) is 38400/38400, no parity, 1 stopbits, 8 databits Status: Ready, Active, No Exit Banner Capabilities: Hardware Flowcontrol In, Hardware Flowcontrol Out Modem Callout, Modem RI is CD Modem state: Ready Group codes:0 Modem hardware state: CTS DSR DTR RTS Special Chars: Escape Hold Stop Start Disconnect Activation ^^xnone - - none Timeouts: Idle EXECIdle Session Modem Answer Session Dispatch 00:10:00nevernone not set Idle Session Disconnect Warning never Login-sequence User Response 00:00:30 Autoselect Initial Wait not set Modem type is unknown. Session limit is not set. Time since activation: 00:04:12 Editing is enabled. History is enabled, history size is 10. DNS resolution in show commands is enabled Full user help is disabled Allowed transports are lat pad v120 mop telnet rlogin nasi. Preferred is lat. No output characters are padded No special data dispatching characters Thanks in advance, Chuck Church CCNP, MCNE, MCSE Sr. Network Engineer Magnacom Technologies 140 N. Rt. 303 Valley Cottage, NY 10989 845-267-4000 x218 ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Reverse telneting to a console port
If I remember from BCRAN, if you do a show line, and find your line number. Now if you telnet to your router port 2000 + line number that should be it. So if you have a modem (or console but console has a different number) that is async 65 or line 65 you would reverse telnet to it by telnetting to 127.0.0.1 2065 -Original Message- From: Chuck Church [mailto:[EMAIL PROTECTED]] Sent: Monday, July 24, 2000 3:30 PM To: '[EMAIL PROTECTED]' Subject: Reverse telneting to a console port All, Can anyone tell me how to setup reverse telnet on a 2511 to connect to the console port of another router? I have the octal cable with RJ45 directly plugged into the console port of another. Is a x-over needed on this cable? I can't seem to find how to do it on CCO. I did notice that if I have the first 3 lines connected to routers, and do a port scan on the 2511, I don't see it listening on ports 2001-2003. If I unplug the RJ45s from the other routers, the port is listening. Here's my partial 2511 config: interface Loopback0 ip address 172.16.1.1 255.255.255.0 no ip directed-broadcast ! . ! line con 0 password cisco login transport input none line 1 modem InOut transport input telnet stopbits 1 speed 38400 flowcontrol hardware line 2 16 modem InOut transport input all stopbits 1 flowcontrol hardware line aux 0 line vty 0 4 password cisco login ! SH LINE 1 looks like this: 2511# sh line 1 Tty Typ Tx/RxA Modem Roty AccO AccI Uses Noise Overruns Int * 1 TTY 38400/38400 - inout --- 0 0 0/0 - Line 1, Location: "", Type: "" Length: 24 lines, Width: 80 columns Baud rate (TX/RX) is 38400/38400, no parity, 1 stopbits, 8 databits Status: Ready, Active, No Exit Banner Capabilities: Hardware Flowcontrol In, Hardware Flowcontrol Out Modem Callout, Modem RI is CD Modem state: Ready Group codes:0 Modem hardware state: CTS DSR DTR RTS Special Chars: Escape Hold Stop Start Disconnect Activation ^^xnone - - none Timeouts: Idle EXECIdle Session Modem Answer Session Dispatch 00:10:00nevernone not set Idle Session Disconnect Warning never Login-sequence User Response 00:00:30 Autoselect Initial Wait not set Modem type is unknown. Session limit is not set. Time since activation: 00:04:12 Editing is enabled. History is enabled, history size is 10. DNS resolution in show commands is enabled Full user help is disabled Allowed transports are lat pad v120 mop telnet rlogin nasi. Preferred is lat. No output characters are padded No special data dispatching characters Thanks in advance, Chuck Church CCNP, MCNE, MCSE Sr. Network Engineer Magnacom Technologies 140 N. Rt. 303 Valley Cottage, NY 10989 845-267-4000 x218 ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Reverse telneting to a console port
You can reverse telnet to any line. Do a show line, take thge line # of the device you want to telnet to and add 2000. That will be the port of the device. So if I have an async or line 65 and my router is ip 192.168.2.2, I can reverse telnet to the modem by doing a telnet 192.168.2.2 2065 It will work the same for the console port. AUX0 CCNP +Security -Original Message- From: Chuck Church [mailto:[EMAIL PROTECTED]] Sent: Monday, July 24, 2000 3:30 PM To: '[EMAIL PROTECTED]' Subject: Reverse telneting to a console port All, Can anyone tell me how to setup reverse telnet on a 2511 to connect to the console port of another router? I have the octal cable with RJ45 directly plugged into the console port of another. Is a x-over needed on this cable? I can't seem to find how to do it on CCO. I did notice that if I have the first 3 lines connected to routers, and do a port scan on the 2511, I don't see it listening on ports 2001-2003. If I unplug the RJ45s from the other routers, the port is listening. Here's my partial 2511 config: interface Loopback0 ip address 172.16.1.1 255.255.255.0 no ip directed-broadcast ! . ! line con 0 password cisco login transport input none line 1 modem InOut transport input telnet stopbits 1 speed 38400 flowcontrol hardware line 2 16 modem InOut transport input all stopbits 1 flowcontrol hardware line aux 0 line vty 0 4 password cisco login ! SH LINE 1 looks like this: 2511# sh line 1 Tty Typ Tx/RxA Modem Roty AccO AccI Uses Noise Overruns Int * 1 TTY 38400/38400 - inout --- 0 0 0/0 - Line 1, Location: "", Type: "" Length: 24 lines, Width: 80 columns Baud rate (TX/RX) is 38400/38400, no parity, 1 stopbits, 8 databits Status: Ready, Active, No Exit Banner Capabilities: Hardware Flowcontrol In, Hardware Flowcontrol Out Modem Callout, Modem RI is CD Modem state: Ready Group codes:0 Modem hardware state: CTS DSR DTR RTS Special Chars: Escape Hold Stop Start Disconnect Activation ^^xnone - - none Timeouts: Idle EXECIdle Session Modem Answer Session Dispatch 00:10:00nevernone not set Idle Session Disconnect Warning never Login-sequence User Response 00:00:30 Autoselect Initial Wait not set Modem type is unknown. Session limit is not set. Time since activation: 00:04:12 Editing is enabled. History is enabled, history size is 10. DNS resolution in show commands is enabled Full user help is disabled Allowed transports are lat pad v120 mop telnet rlogin nasi. Preferred is lat. No output characters are padded No special data dispatching characters Thanks in advance, Chuck Church CCNP, MCNE, MCSE Sr. Network Engineer Magnacom Technologies 140 N. Rt. 303 Valley Cottage, NY 10989 845-267-4000 x218 ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
