Telnet Access

neakins · ‎04-20-2017

How do I set up Telnet on a switch? I thought that I had set it up but for some reason it is not working. Can you give me step by step instructions to set remote access to the switch?

Dennis Mink · ‎04-20-2017

TRy this link:

http://www.ciscopress.com/articles/article.asp?p=27650&seqNum=4

also make sure you can ping the IP address from where ever you are trying to telnet into the switch

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neakins · ‎04-21-2017

I could ping it before but for some reason now it is coming back unreachable.

Georg Pauwen · ‎04-21-2017

Hello,

on a side note, what is the uptime of the switch ? Sometimes devices just need to be rebooted, especially when uptime is several years...

neakins · ‎04-21-2017

Ok, so apparently I have set this up wrong from the beginning.

My findings

1) I have VLAN1 set to the ip address not the correct interface0

A) i have followed the directions form the link you sent me and set up interface0 but still have problems.

2) when setting the ip address on interface0 it shows as down and I cannot bring it up for some reason.

3) still cannot ping the switch.

but the weird thing is all the devices attached to this switch still work including wireless AP's and desktops.

Richard Burts · ‎04-23-2017

We do not have much information to work with other than the fact that you thought that you had set up the switch for telnet but it does not work. Can you post the config? That might help us to identify the issue.

HTH

Rick

HTH

Rick

neakins · ‎04-25-2017

Here is the config

Building configuration...

Current configuration : 8086 bytes
!
! Last configuration change at 16:06:16 UTC Fri Apr 21 2017 by admin
!
version 15.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname EPHS-Cafateria
!
boot-start-marker
boot-end-marker
!
!
username admin password **********
no aaa new-model
switch 1 provision ws-c2960x-48fps-l
!
!
!
!
!
!
!
!
!
crypto pki trustpoint TP-self-signed-1773910528
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-1773910528
revocation-check none
rsakeypair TP-self-signed-1773910528
!
!
crypto pki certificate chain TP-self-signed-1773910528
certificate self-signed 01
3082022B 30820194 A0030201 02020101 300D0609 2A864886 F70D0101 05050030
31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
69666963 6174652D 31373733 39313035 3238301E 170D3136 30393037 31343530
34375A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D31 37373339
31303532 3830819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
8100BFC9 3A98683B 67985E35 819929A3 E5D96DC1 FAF34C78 F3C61E58 5DD61906
2A1EE3FC 949E9DCC 1995D067 781CA3B6 D4EAAE64 FCE7DC3A 91558847 7E1668E9
3086BD35 9963AB39 FECFC23A C0AD90C8 535301C5 FCDC67D4 F8ACC481 FB287029
EDC7CF19 43EE4BB9 890F5815 DC1FDFD0 F1AD3E47 F353BC67 F28A2E89 8DB1247A
DCAB0203 010001A3 53305130 0F060355 1D130101 FF040530 030101FF 301F0603
551D2304 18301680 14BB2516 9F33C32E E2F1AB66 7EF5045C 81C11F7D 39301D06
03551D0E 04160414 BB25169F 33C32EE2 F1AB667E F5045C81 C11F7D39 300D0609
2A864886 F70D0101 05050003 81810053 F3FCAC46 7485DA25 BD4D41B5 CF107A4F
D4115AEF AFECD6F1 D511E8F5 C2AB1DD4 BE543C92 38445684 4960278F C4FB417E
C0E7034B 0B1A7307 BD4336AA E293E898 EFB7EDF7 2A17C8A1 1F418FBC 683B0928
1E49F16D B54B51A0 9BF28044 FED9A53D BF6784D8 51A06896 558DABA8 092091E7
2FCE0F4A AF5AFD2A 28EAA629 41FCC5
quit
spanning-tree mode pvst
spanning-tree extend system-id
!
!
!
!
vlan internal allocation policy ascending
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0
ip address 10.11.0.200 255.255.0.0
!
interface GigabitEthernet1/0/1
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/2
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/3
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/4
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/5
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/6
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/7
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/8
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/9
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/10
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/11
switchport access vlan 50
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/12
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/13
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/14
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/15
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/16
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/17
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/18
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/19
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/20
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/21
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/22
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/23
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/24
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/25
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/26
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/27
switchport access vlan 70
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/28
switchport access vlan 70
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/29
switchport access vlan 70
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/30
switchport access vlan 70
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/31
switchport access vlan 70
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/32
switchport access vlan 70
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/33
switchport access vlan 70
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/34
switchport access vlan 70
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/35
switchport access vlan 70
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/36
switchport access vlan 70
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/37
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/38
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/39
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/40
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/41
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/42
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/43
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/44
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/45
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/46
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/47
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/48
switchport mode access
switchport voice vlan 90
spanning-tree portfast
!
interface GigabitEthernet1/0/49
!
interface GigabitEthernet1/0/50
!
interface GigabitEthernet1/0/51
!
interface GigabitEthernet1/0/52
!
interface Vlan1
ip address 10.11.0.200 255.255.0.0
shutdown
!
ip default-gateway 10.11.255.254
ip http server
ip http secure-server
!
!
!
!
!
line con 0
password *********
login local
line vty 0 4
password *********
login
transport input telnet
line vty 5 15
password *********
login
transport input telnet
!
end

EPHS-Cafateria#

Georg Pauwen · ‎04-25-2017

Hello,

I assume your are using 10.11.0.200 for Telnet access ? The config looks good, try to remove the IP address from the Vlan 1 interface:

interface Vlan1
--> no ip address 10.11.0.200 255.255.0.0
shutdown

neakins · ‎04-25-2017

Yes I am using the 200 as the telnet address.

I'm a bit of a noob for Cisco but when i was setting the switch up i read that to set up the address of the switch you have to do that on VLAN1 so what is the difference between the interface0 and VLAN1?

I will remove VLAN1 and see if that works.

Georg Pauwen · ‎04-25-2017

Hello,

the Vlan 1 interface is generally used for management. All switches in your network should have an IP address on Vlan 1 from the same address space.

That said, you can also try and shut the FastEthernet0 interface and use the Vlan 1 interface. Can you actually ping 10.11.0.200 ?

neakins · ‎04-25-2017

No, can't ping it either. just comes back unreachable. Interface0 was not set up until i read through the link you sent me. I set it up off of the instructions on the page. And reading through it, it actually made sense. So VLAN1 should be set up if i am going to mange the switch through telnet and interface0 is how the switch sends traffic to the rest of the network?

Georg Pauwen · ‎04-25-2017

Hello,

typically you only need interface Vlan 1 up, with a reachable IP address. The reason you cannot telnet is that you have no IP reachability. I am not sure if you have already mentioned this somewhere in the thread, but what IP address are you trying to telnet from, that is, from which device are you trying to reach the switch ?

Richard Burts · ‎04-25-2017

The original post asked the question of how to set up telnet on a switch. And we have been trying to make suggestions about that. But I believe that the real issue in this discussion is how to establish IP connectivity for the switch. Once that is accomplished then dealing with telnet will be easier.

So perhaps the original poster can tell us about this switch. What does it connect to? What devices are connected to its switch ports? Is the device he is using to originate the telnet connect to this switch or is it connected to something else?

HTH

Rick

HTH

Rick

neakins · ‎04-25-2017

So the switch is in an IDF off of one of the wings of the building. the swtich supports wireless AP's and desktops. It is connected back to our core blade switch via fiber. The AP's and desktops work just fine and have no problems connecting. I have multiple VLAN's here. the switch ip is on the native VLAN. I am trying to ping and connect via my desktop which is in a different part of the building but same VLAN. I attempted to ping from another cisco switch on the same VLAN and still nothing.

the ip of my workstation is 10.11.23.121. the ip of the switch i tried to ping from was 10.11.0.188.

Richard Burts · ‎04-25-2017

Thanks for the additional information about the switch. Based on what you have told us I am guessing that there is not anything connected to interface Ethernet 0. I suggest that you remove the IP address from that interface and make sure that the IP address is configured on interface vlan 1 (perhaps best would be in config mode to use the command

default interface ethernet0

Then you should do this in config mode

interface vlan 1

no shut

end

That will get you out of config mode and hopefully will establish IP connectivity. If it does not establish IP connectivity then we have some more investigation to do.

HTH

Rick

HTH

Rick