Ethernet Switches & Routers

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Occasional Contributor
Posts: 7
Registered: ‎05-02-2016

ssh and telnet disappearance

[ Edited ]

Please excuse any lack of technical terminology.  I am currently picking up on these devices and how they work.  Moving on.  I have a Brocade 6430 that we were having issues interfacing with.  All of our switches currently accept telnet.  However, as this certain one was acting up, we decided to power cycle it.  Once this was back up, we were able to telnet into.  One week later, we were able to ssh, but not telnet.  Now, we can't do either.  I'm seriously trying to figure out why this is happening, but have not yet been able to come up with a rhyme or reason for this madness.  Here is the current conguration with all IPs removed.  Please let me know if there is anything else you need to see.  Thanks in advance

 

 

Configuration for ASW4

!

Startup-config data location is flash memory

!

Startup configuration:

!

ver 08.0.30eT311

!

stack unit 1

module 1 icx6430-48- port-management- module

module 2 icx6430-sfp- 4port-4g- module

stack disable

!

!

!

lag LAG_1 static id 1

ports ethernet 1/1/45 to 1/1/48

primary-port 1/1/45

deploy

port-name csw1-1 ethernet 1/1/45

!

!

vlan 1 name SERVERS by port

tagged ethe 1/1/45 to 1/1/48

spanning-tree 802-1w

spanning-tree 802-1w ethe 1/1/45 admin-pt2pt- mac

!

vlan 2 name LAN by port

tagged ethe 1/1/45 to 1/1/48

untagged ethe 1/1/1 to 1/1/2 ethe 1/1/5 ethe 1/1/20 to 1/1/21 ethe 1/1/23 to 1/1/44

spanning-tree 802-1w

spanning-tree 802-1w ethe 1/1/45 admin-pt2pt- mac

!

vlan 3 name WIRELESSUSER by port

tagged ethe 1/1/45 to 1/1/48

spanning-tree 802-1w

spanning-tree 802-1w ethe 1/1/45 admin-pt2pt- mac

!

vlan 4 name WIRELESSPDA by port

tagged ethe 1/1/45 to 1/1/48

spanning-tree 802-1w

spanning-tree 802-1w ethe 1/1/45 admin-pt2pt- mac

!

vlan 5 name WIRELESSGUEST by port

tagged ethe 1/1/45 to 1/1/48

spanning-tree 802-1w

spanning-tree 802-1w ethe 1/1/45 admin-pt2pt- mac

!

vlan 6 name TELEPHONY by port

tagged ethe 1/1/45 to 1/1/48

untagged ethe 1/1/3 to 1/1/4 ethe 1/1/6 to 1/1/19 ethe 1/1/22

spanning-tree 802-1w

spanning-tree 802-1w ethe 1/1/45 admin-pt2pt- mac

!

vlan 200 name QA by port

tagged ethe 1/1/45 to 1/1/48

spanning-tree 802-1w

spanning-tree 802-1w ethe 1/1/45 admin-pt2pt- mac

!

vlan 251 name NET by port

tagged ethe 1/1/45 to 1/1/48

spanning-tree 802-1w

!

vlan 1000 name MGMT by port

tagged ethe 1/1/45 to 1/1/48

spanning-tree 802-1w

spanning-tree 802-1w ethe 1/1/45 admin-pt2pt- mac

management-vlan

default-gateway*.*.*.* 1

!

vlan 1024 name DEFAULT-VLAN by port

spanning-tree 802-1w

!

!

!

!

!

aaa authentication enable default radius local

aaa authentication login default radius local

aaa authentication login privilege-mode

boot sys fl sec

console timeout 30

default-vlan- id 1024

hostname asw4.oit.lijit.com

ip address*.*.*.* 255.255.255.0

ip dns domain-list .com

ip dns server-address*.*.*.**.*.*.*

no ip dhcp-client enable

ip multicast passive

!

logging host*.*.*.*

logging host*.*.*.*

logging buffered 100

username ....... password .....

username ........ password .....

fdp run

!

!

clock summer-time

clock timezone us Mountain

!

!

ntp

server *.*.*.*

server *.*.*.*

!

!

no web-management http

banner motd ^C

******************************************************************^C

***** *****^C

***** WARNING!! This device is the property of *****^C

*****                                      . *****^C

***** ALL UNAUTHORIZED ACCESS IS STRICTLY PROHIBITED. *****^C

***** *****^C

******************************************************************^C

^C

!

interface ethernet 1/1/1

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/2

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/3

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/4

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/5

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/6

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/7

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/8

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/9

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/10

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/11

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/12

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/13

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/14

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/15

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/16

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/17

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/18

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/19

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/20

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/21

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/22

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/23

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/24

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/25

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/26

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/27

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/28

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/29

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/30

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/31

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/32

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/33

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/34

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/35

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/36

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/37

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/38

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/39

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/40

spanning-tree 802-1w admin-edge- port

stp-bpdu- guard

!

interface ethernet 1/1/45

port-name csw1-1

trust dscp

!

!

!

!

!

!

ip ssh idle-time 30

!

!

end

 

Occasional Contributor
Posts: 7
Registered: ‎05-02-2016

Re: ssh and telnet disappearance

I am wondering if this configuration is correct in this aspect.  In the opening command I see this:

 

lag LAG_1 static id 1

ports ethernet 1/1/45 to 1/1/48

primary-port 1/1/45

deploy

port-name csw1-1 ethernet 1/1/45

 

 

Does that extra line after the dploy command belong and would it cause problems in teh future.  I noticed some of my switches have this configuration, but one does not.  Of course, I am only having issues with one switch.  Thanks

Contributor
Posts: 59
Registered: ‎02-25-2016

Re: ssh and telnet disappearance

[ Edited ]

The last line after the deploy-command is  just for documentation and fancy output.

 

What your configuration is missing, are the right commands to enable ssh or telnet. E.g. for the telnet server you should insert a line like

telnet server
write mem

 Dont forget the  write mem - command or your configuration will be lost after reboot. 

Regards
Jörg Kost
Occasional Contributor
Posts: 7
Registered: ‎05-02-2016

Re: ssh and telnet disappearance

Cool.  I will insert that line and see what happens.  The thing that confuses me is all of our switches are set up this way and still accept telnet, but this one will accept it for a bit and then suddenly stop. Very strange. Thanks for the info.  I'll let you know what I find out.  

Contributor
Posts: 22
Registered: ‎05-21-2014

Re: ssh and telnet disappearance

Make sure to enable telnet authentication if you turn on the server, otherwise it doesn't ask for authentication.

 

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