Cisco Switching/Routing :: DHCP Client And Http Secure-server Config In C2950 Switch
May 7, 2013
I am trying to configure interface vlan1 to get an ip address from dhcp by entering the commnad ip address dhcp ios rejects the dhcp portion of my command as not recognised although it is referred to in Cisco manuals.my IOS version is c2950-i6k2l2q4-mz.121-22.EA14.bin.I get the same problem when I try to configure ip http secure-server on the switch. Is this a known bug or whether I have the correct IOS version for these commands?
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Sep 16, 2012
I using IOS c2950-i6k2l2q4-mz.121-22.EA14.bin but no support command "ip http secure-server" and I not connect switch by CNA. How I fix ? Or IOS C2950 support ip http secure-server and ssh ver2 ?
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Jan 24, 2013
I seem to be having a problem with DNS name resolution after configuring my router (Cisco 3725 running IOS image: c3725-adventerprisek9-mz.124-25.bin) for handling DHCP requests.
Before I made the change, everything was working correctly; I could ping Google.com from a computer inside my LAN and would get response from one of Google's public IP's like normal.
I had a separate DHCP/DNS server running Windows Server 2008 handling the DHCP request and DNS queries.
When I made the change, I turned off the DHCP/DNS server and issued the following DHCP commands to my router:
Code...
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Jul 30, 2012
How to configure cisco 3560 to force the client only can get ip by dhcp-relay server ?
The company i am working in has 5 vlans which have been set an lay-3 switch(3560), uses the dhcp-relay server .(in svi configuration: ip helper-address X.X.X.X) well , that works ok~
Now , I got my problem: I need to force the client only can get ip by dhcp-relay server, that means if anyone set static IP manunally , he can't really access to anywhere (to provent anyone set static IP with malignancy )
I know if a h3c router , how to set this configuration n svi configuration : dhcp relay security address-check enable )
the how to configure on a cisco 3560 ?
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Feb 23, 2012
Haveing issue with DHCP server handing out IP addresses to client connected to VLAN5 interface.ISP Router>Firewall -(WatchGuard Drop-in mode) I have several 3750 switches and one acting as a L3 switch. The L3 is configured as follow: [code]
If I connect a laptop to int fa1/0/10 I DO NOT get an IP address from the 10.100.0.8 scope. If I connect to another interface within the VLAN 1, I get an address from the 10.100.0.0 range.
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Apr 26, 2012
I'm attempting to configure a Catalyst 3560-X Switch to act as a DHCP Server. There is documentation that supports this feature. Below is my config procedure however after the completed procedue no IPs are handed out to clients. [code]
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Feb 11, 2012
With out using any server, will DHCP be configured in cisco 2950/2960 switch?I man cisco it self should work as a dhcp server also.
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Jun 24, 2012
I need to configure a Cisco 2960 switch as a DHCP server. The current IP address will be on a different seed than the DHCP addresses. i.e.
Switch IP = 10.1.2.3, GW = 10.1.2.1, Subnet = 255.255.255.0
DHCP addresses would be 192.168.1.1 - 200, GW=???? (10.1.2.3?) and subnet would be 255.255.255.0
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Mar 18, 2009
Can a layer 2 cisco 2950 switch be used as a dhcp server with it's own address pool.
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Aug 8, 2012
I have a Cisco 876 router running 12.4.(15)T5, configured as DHCP client. This works nicely.
A Cisco 886 router, running 15.1 software also works with the DHCP client. This also works but has the following strange beheaviour: In the running-config an ip route 0.0.0.0 0.0.0.0 <dhcp assigned address> appears. Also - some other static routes that are in the config using the dhcp keyword are duplicated with the dhcp-assigned address
Now - when a write mem is done, these dhcp-generated route entry's are stored in the startup-config...
This beheaviour is completely different and VERY unwanted. After a change from DHCP server the config will simply stop working, when a write mem was done at the first DHCP situation.
Should we stop using write mem commands when a DHCP client is active in IOS? Is it a bug? Is it a feature?
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Jan 6, 2013
I have been trying to get the http server enabled so I can access Cisco Network Assistant. I have my interfaces configured but for some reason the server in not running, port 80 is still closed. [code]
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Sep 16, 2012
I have tried search but found found anything for the 3750 switch about how to redirect HTTP, HTTPS & SMTP traffic to altenative gateway, than our standard gateway on our network, so here goes:
The network that need the HTTP, HTTPS and SMTP traffic redirect is 192.168.5.0/24 and should be redirect to 192.168.5.205 where as all other traffic need to be direct to 192.168.5.199.
Can the 3750 switch do this typo of refirect and if how?? I cannot find anything on the Cisco site stating how or even if it is possible!
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Jul 22, 2012
I'm in the process of configuring QOS on a 3560 routing switch in a GOLD, SILVER, BRONZE priority type scenario.
Firstly, I understand that this config will add a tag of "precedence 5" to a packet if it matches the "ACL_QOS_GOLD_In" access list. Question is does the router see this "precedence 5" tag and then sets the priority, or am I missing something in my config where at present it just sees the "precedence 5" and doesn’t act on it ?
Secondly, Since the "precedence 5" tag has already been added to the packets, do downstream routers see this tag and act accordingly or so I need to configure those is well ? [code]
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Mar 17, 2013
i have a simple router on a stick config which is providing dhcp to a customer SSID. however i don't want employees to stay on it and eat the band width since its open. the lease is set to an hour, is there anyway that i could set it so that once your lease expired it can't be renewed for 4 about 8 hours? I am using a cisco 2600 router in this setup.
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Feb 9, 2012
I can't to connect on my switch (WS-C2950G-48-EI) with Telnet or HTTP.When to connect with console, i have a error [code]
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Apr 18, 2012
I need getting access to my http server. I have a host name that I configured to point to my IPS IP address. Port 80 is enabled on my server, but I can't seem to get access it from my web address [code]
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Mar 24, 2013
cisco WS-C6509-E Core switch with IOS "s72033-ipservicesk9_wan-mz.122-18.SXF11"
i have 2 question
Q.1 i want to upgrade this switch what is the latest IOS ver. supported by this module ?
Q.2 i need to enable http server on this switch when i run this comman it's accsebt but i cant get http work
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Nov 6, 2012
I have a 3750 catlyst switch in my network and it is like a distubation switch,And for the nating and dhcp nomadix is using as gateway in the same network. for one of my local PC i need to config the port forwarding in 3750 switch. How to config the port forwarding on 3750 switch,
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Nov 16, 2011
I am in the process of setting up an interop lab for some engineers. The enviornment will consist of some 3750's, H3C's and ProCurves. My concern is that the end user will have Priv-Exec access for CLI usage on the 3750's and they can change the "en" password (I hope they don't but it has happened).Is there a way I can "break in" during the boot process to reset the password? The reason I am doing it this way is because I have an Altiris server with rebuild automation scripts in xpect and I would like to automate the process so I do not have to use a manual factory default reset.
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Jul 28, 2012
I was trying to configure an SF 300-24 for use in my home and obviously did something dumb. It was working fine. The f/w was updated and I had configured 2 VLANs. VLAN2 was ports 1-6+GE1 for IPTV streaming and VLAN3 was ports 7-24+GE2 and GE3 for the rest of my LAN. I was plugged into GE4 and was configuring the switch with a laptop. GE4 was the only port still on the default VLAN1. I chaged the default VLAN to VLAN3, which forced a reboot and the switch never came back up. Attached is what I see when I connect to the console port: [code]
I can't access to GUI using it's static IP or it's default IP on any port and the console never reaches the point where I can log in. The System light is flashing green but the boot sequence never progresses past what's in the screen shot. I tried to do a hard reset using the recessed button on the front panel but it does not seem to have any effect, no matter how long I hold it down.
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Mar 9, 2013
I have a WS-CE520-8PC Switch. I have tried a full 30/30/30 reset, factory reset, and I am still unable to access the express setup page. Running Win7 x64 on the host os (have tried windows 2000 and xp)It also wont allow me to access direct managment mode when pressing the admin button for 10 sec.
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Nov 7, 2011
I uploaded a new config file via TFTP to a 3560 switch. What are the order of commands to get it to boot from this new config file instead of the file listed in 'sh boot': [code]
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Jan 10, 2012
My network generally runs older routers (2600 series) with 16 port switch modules (NM-ESW-16). This has always worked great since I can configure the router and the switch ports on the fly, making changes to either as necessary. Well I am upgrading to 2811 routers, and we wanted to get gigabit ethernet ports on our switch modules. I think I made an error when I purchased a few of these switch modules: NME-16ES-1G.
The first problem, is that the switch ports don't even show up on the router config, I have to establish a session into the switch, (And I can't seem to get back to the router unless I manually switch off power and restart). I don't like this type of switch module, it's like I'm running a completely separate device, and while having a layer 3 switch is cool, It doesn't let me setup routing protocols so I don't like doing it this way. I want to go back to using a switch module that simply adds a ton of ports to my router like the NM-ESW-16. (Note: The NM-ESW-16 does actually work in the 2811 and would be perfect if it were Gigabit speed.)
The seconds problem is that the NME-16ES-1G isn't actually a Gigabit switch. It has a single gigabit port, but the 16 ports are all Fastethernet, and not gigabitethernet. So ideally, I am looking for a switch module that I can fully configure from the router interface that has 16 gigabitethernet ports, and works with a 2811. IE I want to do this. [code]
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Mar 15, 2012
how can i take backup of startup config to tftp server through tftpd server.I am using 4506e switch
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Oct 10, 2012
What image i would need for my 2950 to enable DHCP snooping and DAI features (just for lab purpose)?
or are these features just available on the bigger modular switches (4500 and 6500)?
>sh ver
Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(22)EA8a, RELEASE SOFTWARE (fc1)
[Code].....
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Jan 7, 2012
I am running DHCP snooping for VLAN 1 on below switch
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(22)EA4a, RELEASE SOFTWARE (fc1)
Model number: WS-C2950-24
Looks like below IOS does not support snooping.
Model number: WS-C2950-24
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(14)EA1a, RELEASE SOFTWARE (fc1)
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May 23, 2013
I need to configure public and private wireless access using an ASA 5505 and an Aironet AIR-AP1041N-A-K9. I need to be able to do this via ASDM and http if at all possible. I simply do not have the time to learn hundreds of lines of arcane CLI code. The Aironet connects to the ASA successfully, and receives an IP. I can then connect to the AP wirelessly, but do not receive an IP. I have setup a second SSIDVLAN on the AP, and can't connect to it at all.
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May 17, 2012
I can ping [URL], from the router but not from a client attached to the router dhcp interface(10.1.3.1). When I turn on ip routing I cannot ping at all. Here is the config I have now that can ping the internet from the router.
sh runBuilding configuration... Current configuration : 1191 bytes!! No configuration change since last restart!version 12.3no service timestamps debug uptimeservice timestamps log datetime msecno service password-encryption!hostname
[code]....
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Sep 29, 2011
i am facing the same problem now but am using windows 2003 server
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Apr 17, 2012
If i connected the latop to brand new out of the box ASA 5505 through consloe cable and i have a config file on this laptop from other ASA5505, is there anyway i can upload that config file into startup-config of this new ASA5505 through console cable, without using TFTP or FTP?
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Jan 25, 2012
I use a C2950-24 switch, with IOS 12.1(22)EA12 release.When I try to connect in console mode, I can see the "Press RETURN to get started!" message, but it's not possible to me to have the # prompt.An "authorization failed" message is displayed. And the same message is prompted.
I try to recover password by following the recovery procedure. After the boot command, I never see the message "Continue with the configuration dialog? [yes/no]: ".
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Jun 26, 2012
1 Cisco switch stack (SGE2010) in L3 mode, 2 Vlans.
Vlan 1 = 192.168.0.253/24, untagged on all ports except 14/15
Vlan 2 = 192.168.22.1/24, untagged on port 14 and 15
SGE2010 default route 0.0.0.0/0 next hop 192.168.0.1 (Checkpoint UTM)
DHCP Relay enabled
DHCP server set to 192.168.0.16
DHCP interface set to Vlan2
[code]....
Expanding the ICMP entry, it appears that the destination is the pc client since it shows a Dell mac address, and the source is the Checkpoint UTM (Sofaware).
I can ping and tracert from the Checkpoint to my static IP on Vlan 2. The same goes for the DHCP server to/from Vlan2, so I am confused as to why the routing is failing. I have tried adding Port Fast to the stack ports, but nothing changes.
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May 31, 2012
i am not sure if this is something with my DHCP setup or not, but it certainly seems to be the culprit. I am running a 3560G and using it as DHCP and to do V LAN routing (Geiger protocol). I have 10 pools configured with a few static addresses per pool. Now to get down to the problem. I have a computer (and this problem seems to be a gremlin as it changes what computer is affected quite often) that will connect, get its IP, immediately disconnect, then send out a DHCP req again. The computer has a static assignment in the pool, and for the brief second that it connects, it gets the right address. If i move the computer to another v lan, all works right. If i delete the static entry it will get an address in the right v lan no problem. The command i have been using to add static entries is:
address xxx.xxx.xxx.xxx client-id 01xx.xxxx.xxxx.xx
That seems to have been working on all my static routes except for a bank of computers in vlan3. I have went as far as to delete the pool and recreate it, heck i even recreated the v lan and i am still having issues. Below are some snippets of the running config for review.
The DHCP Pool for the affected LAN:
ip dhcp pool Dev3
network 192.168.3.0 255.255.255.0
boot file bootx86wdsnbp.com
next-server 192.168.1.78
dns- server 192.168.1.8 192.168.1.78
[Code] .....
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