Banner login/exec on Nexus 7000
Hi chaps,
do you know where did the banner login/exec go on nexus 7000? :-) Are you aware of any way possible to display custom message to all users, following a successful authentication? (e.g. post-authentication and not a motd, which is prior to user auth)
I now only have banner motd command available on 7k9 with NX-OS 6.2(10).
Thanks in advance!
P.s. I am aware that I can possibly do that using RADIUS or TACACS, but I need it for situations where AAA server is unavailable.
Hi Joris,
The rule based SPAN filtering was not introduced until NX-OS 6.2 so will not be available to you with NX-OS 6.1(3).
See the section SPAN in the NX-OS 6.2 release notes.
Regards
Similar Messages
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Privilege Level for Tacacs Account in Nexus 7000
Hi,
I have configured the Tacacs (ACS 4.2v) on Nexus 7000 (as mentioned below) and works fine but unlike IOS (6509) It's doesn't prompt that you are in userexec mode (>) and then need to type enable and password for full privilege.
In n7k when I entered into "configure terminal" It won't allow me to access other commands.
How to login into level 15 privilege mode after authenticating from tacacs
(config)# show running-config tacacs+
tacacs-server key 7 "xxxxx"
tacacs-server host x.x.x.x key 7 "xxxx"
aaa group server tacacs+ TacServer
server x.x.x.x (same ip as tacacs-server host)
use-vrf management
source-interface Vlan2
(config)# show running-config aaa
aaa authentication login default group TacServer
aaa authentication login console local
aaa user default-role
Here below are the commands accessible in "Terminal" currently
(config)# ?
no Negate a command or set its defaults
username Configure user information.
end Go to exec mode
exit Exit from command interpreter
isb.n7k-dcn-agg-1-sw(config)#Hi Jan.nielsen
Issue is resolved but by another way.
I have found the same resolution too of custom attirbute command but the Custom attribute Option for shell command wasn't available in ACS v4.2, so after enabling shell for users and by clicking exec--> Shell Exec and enabling priviledge level 15 in the same box of Shell options, It start working without any command -
hi all,
i'm just wondering if we could do fancy ASCII text/art on ASA's banner.
i tried to do the same as my other devices but it's doesn't accept it.
ASA5505(config)# banner login +-----------------------------------------------$
ASA5505(config)# | This equipment is privately owned and monitored. $
| This equipment is privately owned and monitored. |
^
ERROR: % Invalid input detected at '^' marker.
SW2#sh run | b banner
banner login ^C
+--------------------------------------------------------------+
| This equipment is privately owned and monitored. |
| Disconnect immediately if you are not an authorized user. |
+--------------------------------------------------------------+
^Cguys,
i tried to do as advised but it seems not working.
i'm using teraterm, not sure if it's related to the SSH client used.
should i use banner motd instead?
ASA5505(config)# banner login +-----------------------------------------------$
ASA5505(config)# banner login | This equipment is privately owned and monitore$
ASA5505(config)# banner login | Disconnect immediately if you are not an autho$
ASA5505(config)# banner login +-----------------------------------------------$
ASA5505(config)# sh run banner
banner login +--------------------------------------------------------------+
banner login | This equipment is privately owned and monitored. |
banner login | Disconnect immediately if you are not an authorized user. |
banner login +--------------------------------------------------------------+
Type help or '?' for a list of available commands.
ASA5505> en
Password: *****
ASA5505#
- edit: nevermind, it's due to SSH access. i tried what jouni suggested to use either banner motd or banner exec.
i ended up using banner motd and it displays nicely now. thanks for all your help!
+--------------------------------------------------------------+
| This equipment is privately owned and monitored. |
| Disconnect immediately if you are not an authorized user. |
+--------------------------------------------------------------+
Type help or '?' for a list of available commands.
ASA5505> -
Hi all,
I'm trying to configure rule based span on my Nexus 7000.
I want to monitor some vlans, but limit the traffic going to my monitor station by using frame-type ipv4 filter.
The link below explains how to configure it, but my nexus doesn't recognise the command "mode extended".
http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/6_x/nx-os/system_management/configuration/guide/sm_nx_os_cg/sm_14span.html#wp1286697
Am I missing something? I'm running version 6.1.3.
Thanks,
Joris
NEXUS(config)# monitor session 1
NEXUS(config-monitor)# mode extended
^
% Invalid command at '^' marker.
NEXUS(config-monitor)# mode ?
*** No matching command found in current mode, matching in (exec) mode ***
connect Notify system on modem connection
restart Reenabling modem portHi Joris,
The rule based SPAN filtering was not introduced until NX-OS 6.2 so will not be available to you with NX-OS 6.1(3).
See the section SPAN in the NX-OS 6.2 release notes.
Regards -
AAA problems Nexus 7000 %AUTHPRIV-3-SYSTEM_MSG: Unable to create temporary user
Hi,
I'm having problems getting our Nexus 7000 to authenticate users from our Windows domain. If I set up a user within the ACS server and use the CiscoSecure database for password authentication it works fine.
In the logs on the nexus I receive the following messages when logging on using my windows account.
%AUTHPRIV-3-SYSTEM_MSG: Unable to create temporary user 16894. Error 0x404a0036 - login[20923]
%AUTHPRIV-3-SYSTEM_MSG: pam_aaa:Authentication failed for user 16894 from 10.128.45.44 - login[20923]
We can log on to all other Cisco OS devices using windows domain accounts, its just the Nexus.
Any help much appreciated.
Thanks
DarrenNo errors the autnetication on the ACS is showing as passed. The problem is I get an access denied message from the nexus switch,
-
Nexus 7000 SSL wildcard SSL certificate support ?
Hello
i want to verify if Nexus 7000 supports Wildcard SSL's.
CheersI have the same problem on a 5515-X, and I've tried pretty much the same things. The weird thing for me is that everything worked great until I did an OS upgrade. Back on 8.6.1, my browser successfully verified the certificate on my SSL VPN login page, and AnyConnect never brought up any warning boxes. But after I upgraded to 9.1.3, the box was back to using a self-signed cert. The wildcard identity certificate seems to have just disappeared, though the GoDaddy CA cert and my local CA cert both stayed intact.
I've used OpenSSL to convert and verify my cert file in a number of different ways, but all of my supposedly valid files still get the import operation failed message. So it seems like there was some OS change that suddenly made my wildcard incompatible, but I haven't figured out what it is yet.
Hope this helps, for both our sakes. -
Hello,
We recently had a power supply failure in one of our Nexus 7000s, and I noticed that the syslog for the Platform is only present in the default VDC, and not in any of the other VDCs syslogs. Is this by design, or is there a logging level I can turn up in another VDC to capture this log? Thanks for any input
syslog from default VDC -
2013 Mar 18 23:10:34 %PLATFORM-2-PS_CAPACITY_CHANGE: Power supply PS3 changed i
ts capacity. possibly due to power cable removal/insertion (Serial number xxxxxxxx)
nothing in the VDC where I would like to get the logging
default VDC logging level -
xxx7K02# show log level platform
Facility Default Severity Current Session Severity
platform 5 5
0(emergencies) 1(alerts) 2(critical)
3(errors) 4(warnings) 5(notifications)
6(information) 7(debugging)
xxx7K02#
loggging from the specific VDC where we have management tools.
xxx-LOW# show log level platform
Facility Default Severity Current Session Severity
platform 5 5
0(emergencies) 1(alerts) 2(critical)
3(errors) 4(warnings) 5(notifications)
6(information) 7(debugging)
xxx-LOW#Hello Carl,
What version of code are you running on your Nexus 7k?
The expected behavior is:
"When a hardware issue occurs, syslog messages are sent to all VDCs."
http://www.cisco.com/en/US/docs/switches/datacenter/sw/nx-os/virtual_device_context/configuration/guide/vdc_mgmt.html#wp1170241
Dave -
Dell Servers with Nexus 7000 + Nexus 2000 extenders
<< Original post by smunzani. Answered by Robert. Moving from Document section to Discussions>>
Team,
I would like to use some of the existing Dell Servers for new network design of Nexus 7000 + Nexus 2000 extenders. What are my options for FEC to the hosts? All references of M81KR I found on CCO are related to UCS product only.
What's best option for following setup?
N7K(Aggregation Layer) -- N2K(Extenders) -- Dell servers
Need 10G to the servers due to dense population of the VMs. The customer is not up for dumping recently purchased dell boxes in favor of UCS. Customer VMware license is Enterprise Edition.
Thanks in advance.To answer your question, the M81KR-VIC is a Mezz card for UCS blades only. For Cisco rack there is a PCIe version which is called the P81. These are both made for Cisco servers only due to the integration with server management and virtual interface functionality.
http://www.cisco.com/en/US/prod/collateral/ps10265/ps10493/data_sheet_c78-558230.html
More information on it here:
Regards,
Robert -
With Vignesh R. P.
Welcome to the Cisco Support Community Ask the Expert conversation.This is an opportunity to learn and ask questions of Cisco expert Vignesh R. P. about the Cisco® Nexus 7000 Series Switches and support for the Cisco NX-OS Software platform .
The Cisco® Nexus 7000 Series Switches introduce support for the Cisco NX-OS Software platform, a new class of operating system designed for data centers. Based on the Cisco MDS 9000 SAN-OS platform, Cisco NX-OS introduces support for virtual device contexts (VDCs), which allows the switches to be virtualized at the device level. Each configured VDC presents itself as a unique device to connected users within the framework of that physical switch. The VDC runs as a separate logical entity within the switch, maintaining its own unique set of running software processes, having its own configuration, and being managed by a separate administrator.
Vignesh R. P. is a customer support engineer in the Cisco High Touch Technical Support center in Bangalore, India, supporting Cisco's major service provider customers in routing and MPLS technologies. His areas of expertise include routing, switching, and MPLS. Previously at Cisco he worked as a network consulting engineer for enterprise customers. He has been in the networking industry for 8 years and holds CCIE certification in the Routing & Switching and Service Provider tracks.
Remember to use the rating system to let Vignesh know if you have received an adequate response.
Vignesh might not be able to answer each question due to the volume expected during this event. Remember that you can continue the conversation on the Data Center sub-community discussion forum shortly after the event. This event lasts through through January 18, 2013. Visit this forum often to view responses to your questions and the questions of other community members.Hi Vignesh
Is there is any limitation to connect a N2K directly to the N7K?
if i have a an F2 card 10G and another F2 card 1G and i want to creat 3 VDC'S
VDC1=DC-Core
VDC2=Aggregation
VDC3=Campus core
do we need to add a link between the different VDC's
thanks -
LMS 4.2.2 Interface utilisation on Nexus 7000
Hi All,
I'm trying to poll some interfaces for their utilization on a nexus 7000 through LMS 4.2.2.
When I create a poller fot the specific instances, the LMS recognises the instances, but after activating the poller I get the error "No Such Instance - The specified instance is not available".
No info is displayed when I generate an interface utilization report for the specific nexus.
When I activate the automonitor for interface utilization, the interfaces on the nexus are polled.
On the cisco website there are some features listed which LMS does not support on the Nexus 7000, but polling is not in that list (neither in the supported feature list).
Any tips?
Thanks for your help.
JorisAny Idea..??
-
ESXi 4.1 NIC Teaming's Load-Balancing Algorithm,Nexus 7000 and UCS
Hi, Cisco Gurus:
Please help me in answering the following questions (UCSM 1.4(xx), 2 UCS 6140XP, 2 Nexus 7000, M81KR in B200-M2, No Nexus 1000V, using VMware Distributed Switch:
Q1. For me to configure vPC on a pair of Nexus 7000, do I have to connect Ethernet Uplink from each Cisco Fabric Interconnect to the 2 Nexus 7000 in a bow-tie fashion? If I connect, say 2 10G ports from Fabric Interconnect 1 to 1 Nexus 7000 and similar connection from FInterconnect 2 to the other Nexus 7000, in this case can I still configure vPC or is it a validated design? If it is, what is the pro and con versus having 2 connections from each FInterconnect to 2 separate Nexus 7000?
Q2. If vPC is to be configured in Nexus 7000, is it COMPULSORY to configure Port Channel for the 2 Fabric Interconnects using UCSM? I believe it is not. But what is the pro and con of HAVING NO Port Channel within UCS versus HAVING Port Channel when vPC is concerned?
Q3. if vPC is to be configured in Nexus 7000, I understand there is a limitation on confining to ONLY 1 vSphere NIC Teaming's Load-Balancing Algorithm i.e. Route Based on IP Hash. Is it correct?
Again, what is the pro and con here with regard to application behaviours when Layer 2 or 3 is concerned? Or what is the BEST PRACTICES?
I would really appreciate if someone can help me clear these lingering doubts of mine.
God Bless.
SiMSim,
Here are my thoughts without a 1000v in place,
Q1. For me to configure vPC on a pair of Nexus 7000, do I have to connect Ethernet Uplink from each Cisco Fabric Interconnect to the 2 Nexus 7000 in a bow-tie fashion? If I connect, say 2 10G ports from Fabric Interconnect 1 to 1 Nexus 7000 and similar connection from FInterconnect 2 to the other Nexus 7000, in this case can I still configure vPC or is it a validated design? If it is, what is the pro and con versus having 2 connections from each FInterconnect to 2 separate Nexus 7000? //Yes, for vPC to UCS the best practice is to bowtie uplink to (2) 7K or 5Ks.
Q2. If vPC is to be configured in Nexus 7000, is it COMPULSORY to configure Port Channel for the 2 Fabric Interconnects using UCSM? I believe it is not. But what is the pro and con of HAVING NO Port Channel within UCS versus HAVING Port Channel when vPC is concerned? //The port channel will be configured on both the UCSM and the 7K. The pro of a port channel would be both bandwidth and redundancy. vPC would be prefered.
Q3. if vPC is to be configured in Nexus 7000, I understand there is a limitation on confining to ONLY 1 vSphere NIC Teaming's Load-Balancing Algorithm i.e. Route Based on IP Hash. Is it correct? //Without the 1000v, I always tend to leave to dvSwitch load balence behavior at the default of "route by portID".
Again, what is the pro and con here with regard to application behaviours when Layer 2 or 3 is concerned? Or what is the BEST PRACTICES? UCS can perform L2 but Northbound should be performing L3.
Cheers,
David Jarzynka -
Nexus 7000 - unexpected shutdown of vPC-Ports during reload of the primary vPC Switch
Dear Community,
We experienced an unusual behavior of two Nexus 7000 switches within a vPC domain.
According to the attached sketch, we have four N7Ks in two data centers - two Nexus 7Ks are in a vPC domain for each data center.
Both data centers are connected via a Multilayer-vPC.
We had to reload one of these switches and I expected the other N7K in this vPC domain to continue forwarding over its vPC-Member-ports.
Actually, all vPC ports have been disabled on the secondary switch until the reload of the first N7K (vPC-Role: primary) finished.
Logging on Switch B:
20:11:51 <Switch B> %VPC-2-VPC_SUSP_ALL_VPC: Peer-link going down, suspending all vPCs on secondary
20:12:01 <Switch B> %VPC-2-PEER_KEEP_ALIVE_RECV_FAIL: In domain 1, VPC peer keep-alive receive has failed
In case of a Peer-link failure, I would expect this behavior if the other switch is still reachable via the Peer-Keepalive-Link (via the Mgmt-Port), but since we reloaded the whole switch, the vPCs should continue forwarding.
Could this be a bug or are there any timers to be tuned?
All N7K switches are running on NX-OS 6.2(8)
Switch A:
vpc domain 1
peer-switch
role priority 2048
system-priority 1024
peer-keepalive destination <Mgmt-IP-Switch-B>
delay restore 360
peer-gateway
auto-recovery reload-delay 360
ip arp synchronize
interface port-channel1
switchport mode trunk
switchport trunk allowed vlan <x-y>
spanning-tree port type network
vpc peer-link
Switch B:
vpc domain 1
peer-switch
role priority 1024
system-priority 1024
peer-keepalive destination <Mgmt-IP-Switch-A>
delay restore 360
peer-gateway
auto-recovery reload-delay 360
ip arp synchronize
interface port-channel1
switchport mode trunk
switchport trunk allowed vlan <x-y>
spanning-tree port type network
vpc peer-link
Best regardsProblem solved:
During the reload of the Nexus 7K, the linecards were powerd off a short time earlier than the Mgmt-Interface. As a result of this behavior, the secondary Nexus 7K received at least one vPC-Peer-Keepalive Message while its peer-link was already powerd off. To avoid a split brain scenario, the VPC-member-ports have been shut down.
Now we are using dedicated interfaces on the linecards for the VPC-Peer-Keepalive-Link and a reload of one N7K won't result in a total network outage any more. -
Using SNMP to monitor Nexus 7000 Series Supervisor Module
Hello,
I got a Nexus 7000 supervisor module recently, I met a SNMP problem for this module
I would like to know which specific OIDs to use to monitor the following using SNMP on a Nexus 7000 supervisor module:
- Port status
- CPU total utilization
- Power Supply status
- Chassis Fan status
etc.
The Nexus is quite different from other Cisco devices - any help will be appreciated!hope help, and
port status OID is ifOperStatus
CPU total utilization OID is 1.3.6.1.4.1.9.9.109.1.1.1.1.6.1
[root@NET-MONITOR-1 ~]#
[root@NET-MONITOR-1 ~]# snmpwalk -On -v 2c -c 360buy 172.17.0.253 ifDescr.83886080
.1.3.6.1.2.1.2.2.1.2.83886080 = STRING: mgmt0
[root@NET-MONITOR-1 ~]#
[root@NET-MONITOR-1 ~]# snmpwalk -On -v 2c -c 360buy 172.17.0.253 ifOperStatus.83886080
.1.3.6.1.2.1.2.2.1.8.83886080 = INTEGER: up(1)
[root@NET-MONITOR-1 ~]#
[root@NET-MONITOR-1 ~]# snmpwalk -On -v 2c -c 360buy 172.17.0.253 1.3.6.1.4.1.9.9.109.1.1.1.1.6.1
.1.3.6.1.4.1.9.9.109.1.1.1.1.6.1 = Gauge32: 21
[root@NET-MONITOR-1 ~]# -
Query Nexus 7000 Enviroment Status
Hi,
I am trying to figure out how to query a Nexus 7010 Chassis about its enviroment. For our IOS Switches we use SNMP and OID 1.3.6.1.4.1.9.9.13.1 and the related sub OIDs. But this does not work on the Nexus 7010 with version 5.1. Is querying the information not supported or is there another OID?Hi,I am trying to figure out how to query a Nexus 7010 Chassis about its enviroment. For our IOS Switches we use SNMP and OID 1.3.6.1.4.1.9.9.13.1 and the related sub OIDs. But this does not work on the Nexus 7010 with version 5.1. Is querying the information not supported or is there another OID?
Hi,
Check out the below link for nexus 7000 MIB reference ..
http://www.cisco.com/en/US/docs/switches/datacenter/sw/mib/quickreference/Cisco_Nexus_7000_Series_NX-0S_MIB_Quick_Reference_chapter1.html#con_40545
Hope to Help !!
Ganesh.H -
%ARP-3-DUP_VADDR_SRC_IP on two Nexus 7000 using HSRP
Hi,
I am receiving the error %ARP-3-DUP_VADDR_SRC_IP on two Nexus 7000 switch that is configured with HSRP. I only see this error when the Nexus performs a failover to the HSRP standby unit. I personally think this can be safely ignored,but wanted to get another opinion.
I can generate the error when i initiate the failover of several SVIs that are configured for HSRP. I do not see the error when failover doesn't happen.
I haven't been unable to find any documentation for Nexus on this error.
I have found documentation on this error for Catalyst switches and they seem to indicate a loop in the network. I can confirm that there are no loops in the network.
Has anyone else seen this happen on a Nexus? Any links to documentation would be great too.
Thanksyou have duplicate IP addres on some host connected to portchanel10
probably some access layer switch is connected to your portchanel 10
try to find port where this host is connected in access layer switch
sh mac addr | i ac8f
and dont forget to rate post
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