Cisco :: WS-C4948 Vlan1 Management From Outside?
Feb 3, 2013
I'm trying to get a catalyst going for remote management using cisco network assistant.I've basically, enabled telnet;
enable conf t line vty 0 15 password {password}
login
exit
gave it an IP;
int vlan1 ip address {IP} {Subnet}
no shutdown
exit
[code]...
and write mem to save it all. I can ping, telnet and access cisco network assistant from inside the network perfectly. But the problem I'm having is accessing it from outside, can't even ping the device. I can ssh to other servers behind the network just fine. There is no firewall in place at the moment, the provider's drop is plugged in gige port 1?
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Mar 13, 2012
i am experiencing message loss for 1 sec randomly (within a span of 2-3 days) for multicast feeds running through cisco 4948 switch.But not able to isolate the issue is due to c4948 box or something else.
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Feb 3, 2013
C4948-10G switch running IOS 15.0(2)SG ?ACS 4.2 cannot authenticate on the vrf interface. The issue on vrf aaa authentication.
aaa new-model
!
!
aaa authentication login default group tacacs+ local
aaa authentication login no_tacacs local
aaa authentication enable default group tacacs+ enable
[code]....
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Apr 29, 2013
I'm using "WS-C4948(12.2(54)SG)+PWR-C49-300AC/2". The following message are logged in the system log, but it was to check the status with the show command and status LED, but there was no abnormality. I thought the power supply has failed, but I seem different.
040861: Apr 27 07:00:50: %C4K_IOSMODPORTMAN-4-POWERSUPPLYBAD: Power supply 1 has failed or been turned off
040862: Apr 27 07:00:50: %C4K_IOSMODPORTMAN-4-POWERSUPPLYFANBAD: Fan of power supply 1 has failed
I checked.>> #show environment alarm no alarm
#show environment status power supply
Power Fan Inline
Supply Model No Type Status Sensor Status
------ ---------------- --------- ----------- ------- -------
PS1 PWR-C49-300AC AC 300W good good n.a.
PS2 PWR-C49-300AC AC 300W good good n.a.
All Status LEDs are green.
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Apr 3, 2013
I encountered an issue while trying to boot Catalys WS-C4948-S switch. I power on the switch and I'm able to see the boot messages thourgh serial console cable. But it gets stuck at line "Image text-base: 0x1000000, data-base: ..... ". Also I can enter into rommon mode. I tried to use different kinds of IOS images, tried to boot from tftp but with no luck, the issue is the same.
There are no erros on the screen, it just gets stuck when it enters into IOS, so I don't see the IOS prompt.
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Jul 1, 2012
Working on a C4948-10g switch. Trying to reset switch to factory settings. I have ran the Switch#>wr erase, command but the vlan's are still in the config. If you do a show vlan it still shows all the vlan text. I have tried the Switch#>delete vlan.dat, doesn't work. Tried Switch#>delete nvram:vlan.dat, doesn't work. Tried Switch#>erase startup-config, doesn't work. How can I get rid of the vlan's?
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Feb 25, 2013
I am running (cat4500-ENTSERVICES-M), Version 12.2(53)SG2 on the switch. I have a scenario where I have 3 end user equipments connected to a Cisco 4948 L3 switch. At the switch end port 1/46, 1/47, 1/48 are the terminating points for these 3 devices . I have added these three ports to VLAN140 (switch port access vlan140 on the gig interfaces).
The device connected to 1/46 is the one I'm testing some signalling features on. My requirement is to have intermittent packet drop on this interface so that my signalling associations would go down now and then. I'm trying to simulate a real-time network congestion/latency/packet drop in a simple manner.
I do not want to shut/no shut the 1/46 intf to cause this. Some way to achieve intermittent packet drop on this gig1/46 intf ?
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Mar 18, 2013
I have 3 Data centres which I am linking up via Single Mode Single Strand Fibre.The switches at each data centre are WS-C4948-E
-Distance between Data Centre 1 and Data Centre 2 is 60km single mode single strand
-Distance between Data Centre 2 and Data Centre 3 is 70km single mode single strand
What type of SFP do I need to use in each Data Centre for the WS-C4948-E switches for these distances.
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Dec 27, 2009
In default mode the ASA 5505 is setup with two Vlan's, one inside and one outside. Vlan1 is the default inside VLan, with IP 192.168.1.1. I would like to change the subnet of Vlan1 tot 192.168.10.1, but when I do, no Ethernet port is assigned to Vlan1 anymore (was 0/1 - 0/7). What I have done is;
#config t
(config)#interface vlan 1
(config)#ip address 192.168.10.1 255.255.255.0
But after that, no Ethernet port is within Vlan1, so I tried the following to assign one (port 0/1);
#config t
(config)#interface 0/1
(config)#switchport access vlan 1
(config)#no shut
But nothing happends when monitoring (#show run) interface 0/1 (no Vlan assigned)
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Nov 13, 2012
I have the following topology:
2x 877 routers, one interface from each router (port Fa0 which belongs to the router internal switch) is connected to the 2960 switch, the switch himself configured with default settings, flat with one v LAN.
I have configured HSRP in the following manner: router A is 10.0.0.2, router B is 10.0.0.3, virtual IP is 10.0.0.1, take note that the HSRP configuration along with the IP address are configured on vlan1 interface.
Now when i connect a PC to the switch with static IP (10.0.0.4) and trying to ping 10.0.0.1 I'm not getting replies. i see on the PC, using wire shark, the icmp request goes out but on the primary router (and also on the backup) i can't see the icmp request (using debug ip icmp).
this behavior happens only when the HSRP is configured on interface vlan1, when configuring the same configuration on Fa4 (which is WAN interface) everything works fine.
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Feb 26, 2012
I have an ASA5505 where vlan1 (inside) and all associated ports (e0/1 - e0/7) are down. Workstations on vlan 1 are online and working. Vlan2 (outside) is up and running normally. I tried to shut/no shut on the vlan. I also rebooted the firewall. No change. Why vlan1 is down?? I've attached some config info and some troubleshooting.
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Apr 7, 2011
I have a problem with my Cisco 887V VDSL-router. The router gets a ip-address with dhcp from my provider. That works fine. I also can ping from the router:
routerVdslTestNew#ping google.ch source vlan 1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 74.125.79.99, timeout is 2 seconds:
Packet sent with a source address of 10.10.10.1
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 48/48/52 ms
My problem: If I want to ping google from a computer in the VLAN1 the ping doesn't work.
C:UsersXXXXXX>ping 74.125.79.99
Ping wird ausgeführt für 74.125.79.99 mit 32 Bytes Daten:
Timeout.
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May 20, 2013
I want to know how am i do to change the Vlan1`s IP address because the actual ip will be used in another vlan. Actually i haver 10 vlans in L3 mode (routing) implemented in it.
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May 12, 2013
router 1721 with one wic-1adsl ,i have adsl conection with irb static ip. the router connect with mannaged switch through a trunk port. the switch has 2 vlans one for the static IPs and the other for private lan. i need the private lan to be able to go to internet. vlan2 can go to internet because it has the same subnet with provider but vlan 1 canot go internet, so how i can make all vlans go internet(the router has only 1 fastethernet port)
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Jun 4, 2012
Got an odd problem with trunking, all vlans except vlan1 trunk perfectly. Link is from a pair of dualhomed FEX 2248TP's to some 3650G Switches. Nexus running - version 5.1(3)N2(1) 3560's running - 12.2(53)SE2 & 15.0(1)SE2
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Jan 16, 2012
I have a problem where only the 2950's switches go transperant. They drop VLAN1 thus no CDP snmp packets. The users keep working fine but our NMS center keeps calling me at 3am when this happens.
These are access switches that connect to stacked 3750's. Some of the uplinks are using media converters that i have been trying to get removed. But i doubt that it could be the cause of the vlan1 going down.
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Nov 19, 2011
I have 2 VLANs set up and I know they are set as default to not allow one to communicate to the other. Is there a way to set a rule to allow that? I'd like VLAN1 to be able to access VLAN2, but not the other way around.
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Jan 28, 2013
if i have this config:
switch port mode trunk
trunk aloved vlan 50
will travel over this trunk untagged packets? For eg the V LAN 1 is by default native V LAN without tag. If i have created a bog ring with catalyst 3560x switches with no spanning tree on V LAN 1 can be the case of this config a loop ???
I am using upper config on interfaces that are connected the switches together in ring.
Other interfaces on switch have this config:
int range 0/1-4
switchport mode acc
switchport acc vlan1
int range 0/5-24
switchport mode acc
switchport acc vlan50
I am using vlan1 just for local switching without connection to internet! I am asking just because i have this king of messages in logs:
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet1/0/27 (1), with SW3560x_BR8874 GigabitEthernet1/0/19 (50).
GI 1/0/27 and GI 1/0/19 have this config:
switchport mode trunk
trunk aloved vlan 50
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Mar 1, 2013
I have an SG500 that is already deployed with some Access VLANs on it. The PVID is still the default 1. I am trying to change it to 19 with as little interruption as possible. If I just go to the VLAN Management Tab and change the Default VLAN to 19 and reboot the switch, will it migrate my management IP to the default VLAN without any trouble? Would it be less interruption to: Create VLAN 19, assign it an out of subnet IP address, change a port to PVID 19, connect directly to that port, go to that IP address, remove the original management IP from PVID1, change all the ports to PVID19 then change the management IP back to the original?
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Feb 21, 2012
the attached image shows what i am trying to achieve.i need to establish connectivity from subnets 10.30.5.X and 10.30.6.X (in VLAN1 and VLAN2 respectively) to subnet 10.11.35.X
i have a trunk port on my cisco 2960 that is connected to GiE0/0 on my Cisco ASA that has 2 sub-interfaces with IPs in the subnets mentioned above.my problem is i can only connect to 10.30.6.X from 10.11.35.X (and vice versa), but no connectivty to 10.30.5.X
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Sep 7, 2012
My plan is to use VLAN1 for the internal private network and VLAN2 for free public wifi. My question is can I use a PC on VLAN1 to configure/manage my access points? There are no dedicated PCs on VLAN2.
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Jun 17, 2012
It is my understanding that the FWSM for the 6500 series switches uses a 6 port Etherchannel on the backplane to communicate with the 6500 series switch.Can you shutdown vlan1 on the switch and still communicate with the FWSM? I was under the impression that you could not (although I am looking at a config with it shutdown)
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Apr 1, 2013
I have two locations DC and Corp connected to each other via Point to Point Circuit. I have forced the two core switches setup as GLBP pair to be primary and secondary for certain VLAN's including VLAN1.I have a switch in our Corporate office 3750 which is where the point to point circuit terminates. VLAN1 SVI is manually shut on that switch. Also the priority on VLAN1 is increased manually like this, "spanning-tree vlan 1 priority 28672".
Now the issue is that the Primarey Root Bridge in the DC is the root bridge for VLAN 1. But this other switch 3750 in our corporate office also is a root bridge for VLAN1. [code]
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Apr 8, 2013
I have a customer with several SG300's providing VLAN1 for data and VLAN10 for voice. The PC's are piggy backing off the phones and showing up in the SG300 fine:
One department has recently employed more people so we have an SG200 switch to connect the computers and phones to. I don't seem to be able to get any connectivity between the new switch and the SG300 it is connecting to. I have setup VLAN1 and 10 as per the images below:
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Jun 10, 2013
Is there any way to have my Cisco 877W Router alter from using one static route to another static route when another router on the network is reporting destination host unreachable?
Router 1 (192.168.2.253)
Dialer0 -> ppoe to internet
Vlan1 -> local 192.168.2.0/24
Router 2 (192.168.2.254)
Dialer0 -> ppoe to managed VPN (172.16.28.1)
Vlan1 -> local 192.168.2.0/24
Router 2 is connected to another network through a managed VPN and that network also has internet access. I want to be able to have two routes to the internet on Router 2. And when Router 1 internet goes down packets get routed through the VPN instead.
I currently have on Router 2
ip route 0.0.0.0 0.0.0.0 192.168.2.253
ip route 10.0.0.0 255.255.255.0 Dialer0
ip route 0.0.0.0 0.0.0.0 172.16.28.5 250
Which does nothing when Router 1 has its Dialer0 interface shutdown, or goes offline completely.I suspect I could reverse the setup and have everything routed through the VPN by default and then if / when Dialer0 interface goes down it would switch to using Router 2, but if the problem is in the remote network and interface Dialer0 stays up, it would probably do the same thing... nothing.All devices mentioned are Cisco 877W routers with ADSL and a bunch of fast ethernet interfaces.
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Apr 10, 2013
What is VLAN Management
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Apr 20, 2012
I have multiple remote sites connected back into my infrastructure via satellite. I'm building a GRE tunnel accross this satellite infrustructure to my user's routers. I'm using EIGRP through these tunnels and everything is working great as far as connectivity to my users is concerned. However, with each of these packages, I would like to be able to remotely manage the satellite modem. My problem is that these modems all have the same web management IP address (192.168.1.1:80) and I can't change them. I thought to myself, "too easy, this sounds like an excellant case for NAT!" Either I'm tackling this thing all wrong or something because I can't seem to get it to work. Here is what I've so far (IPs modified and extra info cut[CODE]
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Jan 26, 2012
A small remote site is going to need a dedicated 10mb connection to our Main Campus. Probably an 10mb ELAN connection(not decided as of yet). The site will be small - no bigger than 2500 sq feet with small walls possibly. Only one VLAN will be needed and we won't need any voice applications or back-up WAN ports. The site will provide connectivity for approximately 15 people. I've been looking at the 800 series routers for a solution. Do you think the 860 with the built-in 802.11 AP will suffice? I have a couple of concerns:
Does the 860 have CLI management?Will I be able to create a secure, encrypted tunnel between the 860 and a 2811 router on our Main Campus side? The 2811 has a 10mb ELAN secure tunnel on one interface already. I will purchase another interface card for this new, remote site VPN connection.Will the built-in AP give me coverage for the sq footage? I understand that there are extenuating circumstances to be concidered but, generally speaking?
From the video spec I viewed, the presenter said it had "basic security". What does that actually mean? This concerns me, as I want to built a secure WAN connection.Finally, does the 800 series fit this application or are there other Cisco products I should consider?
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Dec 14, 2011
I have installed successfully installed and configured LMS 4.0 and every thing was okay until the customer decided to change the server IP address without notifying any one.
so i have returned the server to its original ip address since nothing worked after they changed the IP, but even after restoring the old IP address the device descovery is okay, but when i navigate to the devices management nothing appears in the all devices drop down menu and the remaining menues also.
i have tried to restart and to start a new device discovery also i have tried to run a data collection but nothing changed.
still stck on the devices are not appearing in the device management tab.
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Nov 18, 2012
I have two dinasour APs that I need to fix. They are configured in bridge mode to bridge a few VLANs between two sites. Right now the management IP on BVI 3 interface doesn't work. Does it have to be on BVI1 for it to work? When I say "work" I mean I am able to ping it and use SNMP to monitor it.
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Dec 6, 2011
I'm using LMS 4.0.1 (current patches and device packages)
There is a problem with the configuration fetch.There are some 2503 routers with IOS 11.3(6) and the message on LMS is: Couldnot enter ENABLE Mode from USER Mode on Device
The devices arn't configured with username, only telnet pw and enable pw; no access-lists or other limitations configured
The credential check is ok ... multiple checks done ... devices deleted, new discovery ... devices deleted and manually added .... with the link //serverip:1741/rme/rmedevices.do I've changed the timeouts multiple times (up to 60 seconds for TFTP, SNMP) .... all these have had no effect of the config fetch
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Dec 5, 2011
Any possibility remotely manage cisco 876? Remotelly I mean by connecting to WAN IP (DSL interface) from outside. It could be via CCP, telnet or ssh doesn't matter.
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Nov 5, 2012
I'm trying to separate my management traffic from regular traffic by splitting the management and "outside" interface to separate vlans but I'm hitting a routing issue. Say I have have a management network of 192.168.1.0 255.255.255.0 running across vlan 1 and I want to use 192.168.2.0 255.255.255.0 running across vlan 2 for the outside interface to send all the other traffic excluding the management traffic across. Tag both vlans on the external interface, say Eth0/0 Default route of route outside 0.0.0.0 0.0.0.0 192.168.2.1, With this, you can not hit the management interface because there is no route defined for the 192.168.1.0 network. However of course if you try to set one, you'll get the "connected route exists" error. How can I set the default route or gateway of the 192.168.1.0 network on the ASA. Switches just don't complain like the ASA does.
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