Cisco WAN :: 3750 Not Able To Telnet From Outside
Feb 16, 2012
I have a cisco 3750 switch and i given 2vlans (40, 118). 40 is local and 118 is public.I given the public ip for vlan 118. now i am able to telnet from same vlan (118 only) but i am not able to ping and telnet as globally. [code]
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Apr 12, 2012
I only want SSH to be allowed when accessing this switch, but telnet is still allowed, why? Whe authenticate via radius.version 12.2no service padservice timestamps debug datetime msecservice timestamps log datetime msecservice password-encryption!hostname 3750!boot-start-markerboot-end-marker!logging buffered 64000logging console informationallogging monitor informationalenable secret 5 $1$1K$!username admin privilege 15 secret 5 $1$Bs$cLHusername users view priv3 secret 5 $1$Jfnviwp!!aaa new-model!!aaa authentication login default group radius localaaa authentication enable default lineaaa authorization consoleaaa authorization exec default group radius local !!!aaa session-id commonclock timezone GMT 0clock summer-time BST recurring last Sun Mar 2:00 last Sun Oct 3:00switch 1 provision ws-c3750g-12sswitch 2 provision ws-c3750g-12ssystem mtu routing 1500udld aggressiveno ip domain-lookupip domain-name CB!!login on-failure loglogin on-success log!!crypto pki trustpoint TP-self-signed-3817403392enrollment selfsignedsubject-name cn=IOS-Self-Signed-Certificate-3817403392revocation-check nonersakeypair TP-self-signed-3817403392!!crypto pki certificate chain TP-self-signed-3817403392certificate self-signed 01 3082024C 308201B5 A0030201 02020101 300D0609 2A864886 F70D0101 04050030 31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274 69666963 6174652D 33383137 34303333 3932301E 170D3132 30343133 31303539 33395A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649 4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D33 38313734 30333339 3230819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281 8100C31D AE6DD8B5 56245317 AD96F4F4 727385D4 97A5B138 488A215E 4294FC40 1C5B2F26 2B75E1CF E562F240 118F2F50 0CFF2449 16EC66EA 2D489F5F F36BFD05 ACCC79CA DDDA984D 4CB7AB DD95A5E0 9274A225 3F5A3634 DEBF1A2A 416E2189 B35B4473 C7D5EE2C E3D41675 A86F31CD.
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Sep 17, 2012
I have 2 switches. 2960 and 3750. I have trunk on both ports of the switch. there are couple of vlans and ports are assigned to those vlans. examples are management, voice and data. int vlan 1 has ip there is default gateway the hosts are able to connect to the internet when connected to the switch.
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Feb 7, 2012
The network is set up like this.
Host -----> 3750 (classic) running IPSERVICES stack ----> 3550 router -----> VPN 3005 Concentrator.
IP routing is disabled on the 3750 (it's acting solely as a switch) IP routing is enabled with an EIGRP process running on the 3550 router that has the network for the 3005 broadcasting.
I can ping the vpn 3005 concentrator from a telnet session in the 3550 but not from the 3750.I can ping between the 3750 and the 3550 vlan management interfaces. Visually speaking it's like this
3750 ------> 3550 [Success!!!!]
3550 ------> VPN 3005 Concentrator [Success!!!!]
3750 ------> 3550 --xxxx--> VPN 3005 Concentrator [Timeout....]
I know this because I tracerout to the 3005 from the 3750 and it resolved the default gateway configured for the 3550 properly but then started timing out.
The 3750 is trunked to the 3550.
3750 is vtp client mode
3550 is vtp server mode
I'm wondering if there's a layer 2 issue involved here as it is a VTP domain and maybe it's not returning properly.
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Feb 16, 2011
Cannot connect to ACS device using telnet IP: port 1812? Seems it is using this port config by default.Is it because of the port it's trying to use? Is there a way of changing the port? If so, where does one do this in the ACS device?I have two 4400 series WLC's one is on the same network segment as the ACS, I can authenticate through the ACS on this one. The other WLC at a different location, cannot authenticate through the ACS.
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Jun 30, 2012
Do I need the Universal image to perform stftp on a 3750 or 3750-X?
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Jan 26, 2012
I have a 891 router I have been testing some things on. I have been able to successfully telnet to it in the past with no problems. Just yesterday I was trying to set an interface to have an IP of 10.10.10.2 which I realized was an IP I had forgot to exlcude from DHCP and it was handed out to the computer I was using to telnet in. So I wrote in the exlcude commands and did an ipconfig -release ipconfig -renew on my PC that had the 10.10.10.2 IP. After the renew I was given 10.10.10.7 (put in a few more excludes).However the release dropped my telnet connection and afterwards I was completely unable to telnet in, getting the error that says I cannot open the connection on port 23. I had made some changes to my entire config beforehand which had it switch to use a new public IP. I never saved the changes and did a hard reset by unplugging the router to get my old config back and see if I could telnet after that. Still could not get in, same error. Well I went through and remade my entire config to use the new public IP. My 10.10.10.7 PC can access the internet, DNS, ping the router, all just fine. Still can't telnet. I remade my line/vty config and made sure it matched up with a config I had on another router. Still can't telnet. Last thing I did was go in and manually clear all open line connections. All that is left is an idle 0 con 0 line that it wont let me close. Still can't telnet.What the **** is going on with this thing? I am completely at a loss to explain why I cant telnet. It must be something in my ACLs that I am missing?
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Oct 24, 2011
1.SCP Not Working on my Linux Box (Fedora release 7 (Moonshine))to Fedora fc11.i686 running box[CODE]
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Feb 10, 2011
I have the following configuration to enable me telnet to a cisco switch, but couldn't even ping the 192.168.1.22.
vlan 22
!
conf t
int f4/4
switchport mode access
switchport access vlan 22
[code].....
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Apr 19, 2013
I have one router 3925 equipment DIRECTLY connected to the Router that needs to be accessed by telnet port 23.
Please find the attached config details.
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Sep 27, 2011
I have a problem, recently I can not telnet to the ACE 4710, the ACE version is A4(2.0). I can enter by web and console but not for telnet. I try to give more resource to the admin context but it doesnt work.
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Oct 15, 2011
accessing my cisco ASA, last night we were doing VA on our ASA, after that iam not able to access it through ssh nor telnet. its not giving me any error.. i tried from different system also. SSH & telnet allowed from inside to 0.0.0.0 i have re-generated rsa keys when it was working. ASA version is 8.2 now when i connect telent is giving me blank prompt. i can login using ASDM.
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May 19, 2012
I have more than 20 SF 300-24P 10/100 Managed Switch switches deployed and running in my office network. All these switches have web configuration utility enabled. We would like to enable telnet too. But for this I know I have to visit site to site, connect the switch manually with a laptop and enable telnet option. I am looking for how can I enable telnet in these switches using web-based switch configuration utility.
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Dec 19, 2011
On a LMS 4.0.1 :I want to know what is the right way to change the telnet program on the campus mgr map (topology services map), when right-clicking a device icon and selecting telnet.I would like to use a tool of mine, and not to launch a telnet command from the IE browser.I changed the default telnet of Windows in the registry, but the program is still launched as a telnet URL in the browser and this is not what I would like to do.
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Jan 13, 2013
I am trying to set up SSH/Telnet on a WPA2000 Wireless-G Access Point. I have looked for documentation but am unable to find any that says how to do this via the GUI, and I cannot see any obvious place where this could be. How to set this up? I would prefer SSH but telnet will do.
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Dec 18, 2011
I have Cisco router 851 at my region site. It has five Fa ports. One of them is connected to ISP and has ip address 10.1.1.2 (for example). It also has vlan 1 interface, that has ip address 192.168.0.1 (also for example). I also have Tun0 interface that goes through ISP network and connects to my hub network. The rest of Fa interfaces are swithcable and they are in vlan 1.The problem is that from hub LAN I can telnet to 10.1.1.2 ip address, but I can't telnet to 192.168.0.1. Whereas I can Ping 192.168.0.1 from my hub LAN.
Topology:
Hub LAN -------ISP---------Spoke Router 851
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Oct 7, 2012
I am not able to telnet or ssh to ASA running 8.2.5(33). [code] I am able to ping inside interface of the ASA. Telnet gets stuck at Trying
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Sep 3, 2012
I am facing an issue with a cisco 877 router. I am not able to telnet to this router from outside using the public IP. I have also notices this works when the Nat is removed.
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Feb 21, 2012
I have a Cisco 2650 with a simple config as follows:
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname MaVI_Test
[Code]....
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Nov 24, 2011
I've configured in an ASA5540 (8.4) access to a server in my LAN using telnet with webVPN. I've installed the ssh/telnet plug-in in the ASA and SSH access to the servers works fine but when I try telnet access I always get this error:
Could not connect to: "ip server" 23
Reason: java.io.IOException: Connection failed
It happen with any server I try. I'm not trying to access to the ASA, just servers inside my LAN that I can access with anyconnect correctly. There is a Cisco bug (CSCsq89467) saying that not configuring any Web-acl in the ASA solve the problem. Telnet always show the same error.
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Jan 27, 2013
I have an early model PIX-515 that hasn't been used in a long time but I want to get it working again in a lab environment. I am at loss right now on how to get into it though.
CONSOLE:
I've tried connecting from the PC's serial port to the units console port using Cisco's blue cable with no avail. All I get is a cursor but no response. I've tried using 9600,8,none,1,none as settings and I can sucessfully console a Cisco 1700 router with those same settings in Putty no problem, but it doesn't work with this Pix. I've also tried using other possible common speeds like 1200,1400,4800,19200, 38400, 57600 and 115200 in case the firewall was set to use those and that didn't work either.
[code]...
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Jul 16, 2011
how to telnet an computer over internet
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Dec 19, 2012
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Apr 5, 2012
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Sep 9, 2011
I setup a site-to-site VPN tunnel at the remote ASA5505. I am able to asdm to the outside interface but not ssh. I switch to telnet and still not allow me to access. I added an ACL to allow telnet any to the outside interface but still not working. In ASDM I see the log Here is the second issue. When I want to change the telnet back to ssh using ASDM I got the following error.
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Sep 20, 2012
I've set up this router in the office, and I can access it via PPTP without any problems from home (via windows VPN), Router is sat in DMZ with full access to the internet.
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Q2,I've setup the cisco client on my laptop, and working on the pcf file, without much luck.. Everytime I try to connect it get " error 412. the remote peer is no longer responding. "
With wireshark, I can see the requests been made to the router.. ( from the office )
Within my PCF file i have ...
[main]
Description=MYNAME
Host=<external IP>
AuthType=1
GroupName=vpnname
GroupPwd=<myUnEncryptedKey>
[code]....
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Jun 29, 2012
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No Session Information is available
sh telnet maxsessions
telnet maxsessions 16
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Mar 9, 2013
I'm trying to telnet into the my RV180 router. How do I go about it.
I created 3 VLANS
1 at 192.168.1.1
20 at 192.168.20.1
30 at 192.168.30.1
Here is the Multiple VLAN Subnet Table:
1 192.168.1.1 255.255.255.0DHCP ServerEnabled 10192.168.10.1255.255.255.0DHCP Server Enabled 20 192.168.20.1 255.255.255.0 DHCP ServerEnabled
I can ping the router at all 3 IP addresses.How do I enable the telnet service on the router?
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Oct 8, 2012
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Apr 15, 2012
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Apr 19, 2011
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the problem appear if the session is ideal for 30s,
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Jun 20, 2011
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Oct 28, 2012
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