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Network Operations

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Network Operations includes asset management, help-desk supervision, security and user policies, infrastructure administration and anything else that affects the operation of your network. Discussions will include those of best practices in platforms, configurations, performance, security and accounting.

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Hi, ASA5505 cannot be accessed by console. When trying to access the ASA, CRT show nothing and just keep stuck status without any refusing error message ( it looks like the ASA can keep stuck forever). Please see picture attached. The console cable is confirmed to work well ( in other device). the ports lights can be up once cable is plugged into ports. That means the ASA already began to work.
So I think there are two possible things:
One is ASA console port is broken and the device still can work.
Second is some configuration issue. if so, can we set it back to factory status?

Any suggestion would be appreciated.
1.PNG
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mpls
on the topology above MPLS IP command is enabled on all physical interfaces of the routers. OSPF is configured on all physical and Loopback interfaces of the routers.
I would like to know if  IP packets from end to end get Tunneled through MPLS "Tunnel" ?


PE1#sh run | beg router ospf
router ospf 1
 log-adjacency-changes
 network 2.2.2.2 0.0.0.0 area 0
 network 192.168.23.0 0.0.0.255 area 0

interface FastEthernet0/1
 ip address 192.168.23.2 255.255.255.0
 mpls ip
 
P#sh run | beg router ospf
router ospf 1
 log-adjacency-changes
 network 0.0.0.0 255.255.255.255 area 0

interface FastEthernet0
interface FastEthernet0/0
 ip address 192.168.23.3 255.255.255.0
 mpls ip
 !
!
interface FastEthernet0/1
 ip address 192.168.34.4 255.255.255.0
 mpls ip

PE2#sh run | beg router ospf
router ospf 1
 log-adjacency-changes
 network 4.4.4.4 0.0.0.0 area 0
 network 192.168.34.0 0.0.0.255 area 0

interface FastEthernet0/0
 ip address 192.168.34.4 255.255.255.0
  mpls ip


PE1#traceroute 4.4.4.4 source loopback 0            

Type escape sequence to abort.
Tracing the route to 4.4.4.4

  1 192.168.23.3 [MPLS: Label 17 Exp 0] 48 msec 20 msec 20 msec
  2 192.168.34.4 44 msec 44 msec 20 msec
PE1#
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Hi ladies and gents

We have a router that has been long been configured with a single interface to the internet across which we ran two tunnels between Melbourne - Singapore and Melbourne - Kuala Lumpur. this config served us well until our KL office started to get more and more users so I thought I would order a second internet connection with symmetrical 100/100 throughput. Our basic ADSL connection had very limited upload however it had a number of static IP's which I didn't want to mess with as aprt of this change. My approach was to keep the ADSL connection as our primary WAN interface however use the new Exetel interface to run the tunnels over. However it just wont work and im pulling my hair out trying to troubleshoot it. When I switch tunnel1 over to the new interface known as dialer1 the tunnel stand up and both routers can ping each other. However I cannot ping any reources in Melbourne from KL (subnet 192.168.20.0) . One resource is our SIP Voice Gateway which is 192.168.50.1. As soon as I switch the tunnel back to dialer0 it all comes back working. as there is no nat involved I cant understand why its not working. I even tried putting a deny statement in to ensure that no return packets are going out via nat.

My config:


!
! Last configuration change at 18:42:00 UTC Fri Oct 6 2017
!
version 15.5
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname mbicrtr01
!
boot-start-marker
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I’m an ICT Tech in a school and even though I have a degree and over 5 years experience I don’t really have too much know how in networking. Know the basics though

I really want to practical experience

I know there is comptia Network Plus which gives you a good grasp of networking

I’m currently watching mike Meyers videos on Lynda.com

I think I may probably need past papers as well

Any advice from anyone on passing network Plus and gaining the kind of practical experience?

What do you all suggest ?
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Dear Experts, we got this error in our router. Can you please give us some advises? The router keep restarting unexpectedly each few hours

R1_LLNetnamFpt#sh version
Cisco IOS Software, C3900e Software (C3900e-UNIVERSALK9-M), Version 15.2(2)T, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2011 by Cisco Systems, Inc.
Compiled Wed 16-Nov-11 01:18 by prod_rel_team

ROM: System Bootstrap, Version 15.1(1r)T1, RELEASE SOFTWARE (fc1)

R1_LLNetnamFpt uptime is 1 hour, 35 minutes
System returned to ROM by bus error at PC 0x2B920B3, address 0x2B920B3 at 14:43:33 ICT Tue Sep 26 2017
System restarted at 14:45:04 ICT Tue Sep 26 2017
System image file is "flash:c3900e-universalk9-mz.SPA.152-2.T.bin"
Last reload type: Normal Reload
Last reload reason: bus error at PC 0x2B920B3, address 0x2B920B3

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Hi

We are going to migrate the email address over to the new company because of acquisitions . How to use office 365 migration tool to migrate mailbox from existing company A to new company B.

Thanks
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Our firewalls are not sync'ed to public DNS so we can't create rules by URL of playstore or appstore.

Our corporate mobile devices need to have push notifications & apps install :
what's the range of IP for appstore & playstore required & the ports to permit?

I heard appstore is a Class A subnet while playstore is probably a Class B:
is it a good practice to permit firewall rules to such big subnet ranges ?
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Hi Guys

I have Two Cisco Router r1,r2 both of them have the same getaway , i need to Achieve the high availability between the two so if r1 down .the r2 should be up and replace r1

see attached the network design

thanks

Simple network Diagram
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Hi,

Earlier this week we switched ISP's and started to use a new physical router with a different IP address on our lan.

At the same time we updated the default route on the Extreme switch so that it used the IP address of this new router as its gateway (therefore internet traffic goes out via this new router) .   The default route on the extreme switch is configured to use the "VR-Default" VR.

Everything has gone well with our production network, but we also have WiFi connections on a number of different  IP ranges (away from our production network).  We are unable to get an internet connection to clients on these WiFi networks.

These WiFi networks are also configured to use a different gateway (with an Ip in the range of the network) which ultimately returns them back to the the Extreme switch.  These WiFi networks/routes are also configured to use the "VR-Default" VR.

I would like to understand how I can examine the details/configuration of the 'VR-Default' VR to understand what IP address it is using to route out to the internet on.
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Devices:
Google Home,
Aruba IAP-305 (RW)
NordVPN


I am trying to set up a VPN for my Google Home so it will register as being in the US. I am currently in Ireland and have purchased a subscription to NordVPN.  From what I understand, a VPN cannot be put on the actual Google Home device.

I currently make a lot of calls to the US. Google Home offers free calls in the US but is not available here in Ireland. This is one of the main things I want to get from my Google Home.

If the net result of the VPN makes Google Home look like its in the US, I do not want the rest of my tech devices to think they are in that location, i.e all of my other tech devices have locations in Ireland.

Regards,
Robbie
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Tech or Treat!

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I need to reset the logon password for a  Dell SonicWall TZ600 router which I would like to do without erasing any of the existing settings or configurations.

How can this be done?
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for example check the nodes about flapping,down , restarting reasons etc
thanks
Nader Al-Kahtani
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We have a computer who is accessible by placing   '\\pc-name\j$'  in the Windows Explorer.  We also have that same location mapped using the command 'net use j: \\pc-name\j$'.

When in the command prompt we use   'Dir \\pc-name\j$'   or   'Dir J:\'   works excellently - total access.

However, if place   'J:\'   in the Windows Explorer or if we type   'start.', in order to open explorer at that point, it gives the following error:

WindowsExplorerLocationError



How can we successfully use Windows Explorer to access this   'J:\' ?
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Hi

I have a watchguard T30. Need to configure one of the Eth ports as a vlan port. The  need to connect the Eth port to a Huawei Layer 2 switch.

How do I configure the switch to allow for vlans?

Thank
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Hello

I have a couple of WAN connections and used by few users to access company services like : Mail,Web Applications...etc.
Both Lines have "A" Records with our ISP. if one line is down,  is it possible to redirect the users to access services through the back up line ? or can you suggest best scenario ?

Best Regards
Mahmoud
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Hi there, I need to create wifi network with official lan.
I need to now know to do it and things to keep in mind.

Also, It would be better if a person has to provide his official credentials to join the wifi group.

Regards
Anil Chauhan
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Hi, I have a Cisco switch 2960 connected to a Synology NAS and a server HP Gen9.

Is it possible to increase the bandwidth of connection from switch to NAS and to server by doing Etherchannel?

Many thanks in advance,
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Hi All,

I am having problems loading OS image onto a new Nexus 9504 with 2 sup below are the steps i have tried, any advise would be much appreciated. image i am using is nxos.7.0.3.I5.2.bin

1. Reload switch and
2. Ctrl + C
3. cmdline recoverymode=1 and cmdline init_system
4. boot nxos.7.0.3.I5.2.bin (which is copied on bootflash/)
5. After this it starts configs and took some time but displayed other messages: System is coming up ... Please wait ...
6.After this, it returns to bash shell: bash-4.2# and nothing happens
7. Both switches, I have reloaded twice and retied again; but still same.

when i exit it takes me into (standby) login: but requires username and password which i have tried all the defaults and will not let me in.

Thanks
0
Hi
Someone must be using "route based on physical nic load". I wonder how the uplink physical ports to be configured? LACP/LAG whatever in Cisco term.
We have Cisco 3850.
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Veeam Task Manager for Hyper-V
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Veeam Task Manager for Hyper-V

Task Manager for Hyper-V provides critical information that allows you to monitor Hyper-V performance by displaying real-time views of CPU and memory at the individual VM-level, so you can quickly identify which VMs are using host resources.

I'm at a client which has an Internet feed from their Israel office which egresses in NYC. Nobody seems to know why it was put in that way. Might any experts on here with middle east experience know why you might want to egress on the other side of the Atlantic rather than just using a local ISP? Or at least Europe? Security issue? Tax issue? Something else??
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Screen-Shot-2017-08-06-at-11.30.59-A.png
on the topology above , I have R1 and R6 on AS 1, R5 on AS3 , R2,R3,R4 on AS2

I would like to have Routers on AS1 (R1 and R6) Not take route through AS3 to reach routers inside AS2, instead I want AS1 routers to go straight to AS2 through R1 using BGP Default Local Preference command on R1

you can see in the config below on R1 :
bgp default local-preference 600


Below is the BGP route configuration on R1, R6, R3. As you can see R6 is going through AS3 to reach routers in AS2 instead of going straight to AS2 through R1

If you need more info , please feel free to ask.


Thank you

R1#sh run | beg router bgp
 bgp default local-preference 600
 network 1.1.1.0 mask 255.255.255.0
 neighbor 192.168.12.2 remote-as 2
 neighbor 192.168.16.6 remote-as 1

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R6#sh run | beg router bgp
router bgp 1
 no synchronization
 bgp log-neighbor-changes
 neighbor 192.168.16.1 remote-as 1
 neighbor 192.168.56.5 remote-as 3

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R5#sh run | beg router bgp
router bgp 3
 network 5.5.5.0 mask 255.255.255.0
 neighbor 192.168.35.3 remote-as 2
 neighbor 192.168.56.6 remote-as 1

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R1# sh ip bgp
BGP table version is 13, local router ID is 1.1.1.1
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
*> 1.1.1.0/24       0.0.0.0                  0         32768 i
* i2.2.2.0/24       192.168.56.5             0    100      0 3 2 i
*>                  192.168.12.2             0             0 2 i
* i3.3.3.0/24       192.168.56.5             0    100      0 3 2 i
*>                  192.168.12.2                           0 2 i
* i4.4.4.0/24       192.168.56.5             0    100      0 3 2 i
*>                  192.168.12.2                           0 2 i
* i5.5.5.0/24       192.168.56.5             0    100      0 3 i
R1#

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R6#sh ip bgp              
BGP table version is 6, local router ID is 192.168.56.6
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
*>i1.1.1.0/24       192.168.16.1             0    600      0 i
* i2.2.2.0/24       192.168.12.2             0    600      0 2 i
*>                  192.168.56.5                           0 3 2 i
* i3.3.3.0/24       192.168.12.2             0    600      0 2 i
*>                  192.168.56.5                           0 3 2 i
* i4.4.4.0/24       192.168.12.2             0    600      0 2 i
*>                  192.168.56.5                           0 3 2 i
*> 5.5.5.0/24       192.168.56.5             0             0 3 i

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R5# sh ip bgp             
BGP table version is 10, local router ID is 5.5.5.5
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
*> 1.1.1.0/24       192.168.56.6                           0 1 i
*> 2.2.2.0/24       192.168.35.3                           0 2 i
*> 3.3.3.0/24       192.168.35.3             0             0 2 i
*> 4.4.4.0/24       192.168.35.3                           0 2 i
*> 5.5.5.0/24       0.0.0.0                  0         32768 i
R5#

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Hello,

Trying to create a Site to Site between our TZ215 and Azure:
VNET1 - Address Space     = 10.1.0.0/16
               Subnet  range      = 10.1.0.0/24

GatewaySubnet                  = 10.1.1.0/24

Virtual Net Gateway           = VPN
                                               = Policy-based
                                               = VNET1
                                               = VNET1GWIP  (created Public IP)

Local Net Gateway             = RP_OFFICE
                                              = Public IP address of SonicWALL
                                              = 192.168.250.0/24 (LAN network on SonicWALL)

Connection                          = Site-to-Site (IPsec)
                                               = Virtual Net Gateway
                                               = RP_OFFICE
                                               = Shared key that matches what's configured in the SonicWALL

SonicWALL:
 General Tab                         = Site to Site, IKE using Preshared , IPsec Primary = Public IP of Azure, IPsec Secondary = 0.0.0.0, Local & 
                                                   Peer IKE ID = IPv4 address
Network Tab                         = LAN Subnets, Azure LAN network
Proposals Tab                       = Main Mode, Group 2, AES-256, SHA1, 28800, ESP, AES-256, SHA1, 3600
             
Seeing the following in the SonicWALL log:
  SENDING>>>> ISAKMP OAK INFO …
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Anyone has experience connecting Chinese office to US?  One of the options is going through Hong Kong but the connection if very poor we heard.

Any other vendors or solutions we should look into?  Fiber connectivity?   Just need to have a reliable connection to one of our US data centers.  Please advise.  Thanks!
0
There are two sets of Sonos one on the main network and anther on the guest network.

Do I need to get anther bridge/ adapter for the guest network ? the main has one.
0
How set equally load balancing for 3 different ISPs

Please find the exsting config, after this configuration i am unable to get load balancing in order, always traffice goes automaticly from interface FastEthernet0/0/0 every time i dont know why its happing.

Maximum time uses:-
interface FastEthernet0/1 - 20% (4Mbps Link)
interface FastEthernet0/0/0 - 30% (2Mbps LInk)
interface FastEthernet0/0/1  - 50% (2Mbps LInk)

why every time traffice use primery interface as a interface FastEthernet0/0/1, please suggest what need to be changes for traffice move in order, example:-
interface FastEthernet0/1 - 60% (4Mbps Link)
interface FastEthernet0/0/0 - 20% (2Mbps LInk)
interface FastEthernet0/0/1  - 20% (2Mbps LInk)

Router 1 Config:-

interface FastEthernet0/0
 description office_64/5/10_Lan
 ip address 192.168.90.1 255.255.255.0
 ip flow ingress
 duplex auto
 speed auto
!
interface FastEthernet0/1
 description 4Mbps
 ip address 1.1.1.1 255.255.255.0
 delay 1
 duplex auto
 speed auto
!
interface FastEthernet0/0/0
 description 2Mbps
 ip address 2.2.2.1 255.255.255.0
 delay 2
 duplex auto
 speed auto
!
interface FastEthernet0/0/1
 description 2Mbps
 ip address 3.3.3.1 255.255.255.0
 delay 3
 duplex auto
 speed auto
!
!
router eigrp 100
 variance 2
 network 1.1.1.0 0.0.0.3
 network 2.2.2.0 0.0.0.3
 network 3.3.3.0 0.0.0.3
 network 192.168.90.0

Router 2 Config:-

interface FastEthernet0/0
 description Rack_Lan
 ip address …
0

Network Operations

9K

Solutions

11K

Contributors

Network Operations includes asset management, help-desk supervision, security and user policies, infrastructure administration and anything else that affects the operation of your network. Discussions will include those of best practices in platforms, configurations, performance, security and accounting.