Cisco Switching/Routing :: Telnet On Port 6066 To Configure Router
Apr 23, 2012
We have several routers that can only be accessed on telnet port 6066 (vice 23). I have no global exec privilege so I can not provide config.So my question is: how do you configure the router to accept port 6066 for telnet and deny port 23?
I have a new 877 that I am using for internet traffic for 3-4 internet only devices.I also have a clean network that i want to insure no cross contamination. However I plan on rolling this out to many sites, but for management I was hoping to set up a reverse telnet to the console port from our one of my clean switches. which should allow me to keep the units seperated and allow me to manage changes etc remotely. Unfortunatly there is no Aux port on the clean switch (3560). Is there still a way to acheive this? can i configure one of the ethernet ports to connect to the console of the 877?
I am having issues with 'telnet' on port 2821 to a range of servers connecting through vlan interface from my core switch 6513 running s72033_rp-DVIPSERVICESK9_WAN-VM) version 12.2(33)SXH7, RELEASE SOFTWARE (fc3). The telnet on port 1556 and 13724 is ok.
I Have a Cisco 1941 router which had its GE0/1 port burnt out and we have since plugged in a module with 4 fast ethernet ports. I need to reconfigure the router such that at least one of the Fast ethernet ports can server the purpose of the GE0/1. GE0/0 connects to our Service provider and GE0/1 connected to the inside network.Currently, while connected to one of the ethernet ports, i can telnet into the router on the address 192.168.29.1. when i'm on the router, i can ping our remote site, network address 192.168.24.0 with no problem, but when i use the command "Ping 192.168.24.0 source 192.168.29.1" there is no response.
I need to configure the port forwarding on Cisco 887 to forward port 22 on Public IP to a LAN IP port 2200. I don't know anything on Cisco router at all, beside telnet to the cisco and quit . Any step by step command.
We have a cisco 2911 router configured with password for telnet login, but I always failed to login use telnet, does any one know any place need to be modify?
I have a cisco L2 SG300-10p Managed switch . I want to configure one port as a turn but cant find the command Encapsulation dot1q . Its a poe switch i want to use for both internet and voip in separate vlans.
Trying to configure the Cisco 4948e switch gigabit ethernet port with "switch port trunk encapsulation dot1q", but didn't get the option. Please find below the options got after "swith port trunk"............
SW(config-if)#switch port trunk ? allowed Set allowed V LAN characteristics when interface is in trunking mode native Set trunking native characteristics when interface is in trunking mode pruning Set pruning V LAN characteristics when interface is in trunking mode
SW(config-if)#switch port trunk. Please find below the version of the SW............
SW#sh ver Cisco IOS Software, Catalyst 4500 L3 Switch Software (cat4500e-LANBASE-M), Versi on 12.2(54)SG1, RELEASE SOFTWARE (fc1) Technical Support: {URL} ROM: 12.2(44r)SG11 Hobgoblin Revision 21, Fortooine Revision 1.22 [code]...
So, whether the command is not supporting on this Cisco switch ? But we have Cisco 4948 Cisco sw where that command is working fine.
Possible to configure multichassis port-channel between a VSS and 3750X (Port-channel not in the same switch on the 3750X stack). I got it using LACP but I need Pagp to get VSL redundancy “dual-active detection pagp trust channel-group 1”. I am using the last VSS IOS version 15.0(1)SY. I can’t get the option “switch 1 preempt”, has it changed with other option?
how to configure this. I did it in the past but kind of forgot how I did it.I have a stacked 3750 (two physical switches) connecting to a 2960.
I am creating trunk ports with limited access to VLAN 300, 600, and 700.
There is two interfaces connected from the 3750's(one on each physical stack member) to the 2960.I have the physical interfaces configured exactly the same.
Should I keep the configuration on the physical ports and not configure the Port-Channel Interfaces? Do I need to configure port-channel load balancing? Is the channel-group mode sufficient? Goal is to basically create 2 links to the 2960 to double the bandwidth and provide redundancy.
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
I have two stacks 3750X on two different sites with two links L_2_L, and I want to configure the port channel to aggregate the two links.
Site A Site B 3750X -A1 --------------------------------------( )--------------------------------------- 3750X -B1 ( L-2-L ) 3750X -A2 --------------------------------------( )--------------------------------------- 3750X -B2
Below the configuration that I have put the two stacks.
site A interface Port-channel5 description Etherchannel group entre le stack 3750X-A et Switch Lan_2_Lan switchport trunk encapsulation dot1q switchport trunk allowed vlan 11,12,999 switchport mode trunk switchport nonegotiate speed 100
But the problem is only one link is Bundeled in channel group, see below
Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 5 Po5(SU) LACP Gi1/0/15(I) Gi2/0/15(P)
I have a switch layer 6500 series connected to a firewall, the port configuration between them is layer 2, in another words I do not configure an IP address in the Cisco switch port to conected it in the firewall, but when a apply a policy on firewall it lose communication with others vlans, just the vlan that is connected between the switch and firewall works, attachment the design. I think that is necessary to configure the connection between the firewall and switch as layer 3 ( a port with IP address in the switch), but I would like to know why? The switch is configured with about 10 vlan and it is a inter vlan routing, a default route is configured in the switch where the gateway is the firewall.
I am trying to configure a loop back interface like so: [URL], on the following device:
C3550 Software (C3550-IPSERVICESK9-M), Version 12.2(50)SE, RELEASE SOFTWARE (fc1on port gig0/1 which is using a 1000Base-SX adapter. This is for troubleshooting purposes and it does not appear to be a feasible option. Is there another way to accomplish in the IOS?
We have Dell M6220 blade server that server is connected to cisco 3750 switch. I am trying to configure LACP in 3750 for two port which are connected to Dell M6220 server switch. The channel-group 2 mode active commande is not taking then its showing the error protocol mismatch and if i run show int port-channel 2 command the port channel status is showing down. The Dell server switch is on simple mode. below i have attached the required details.
Switch#show int port-channel 2 Port-channel2 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set
How to configure traffic flow between computers inside VLANs and a routed port? Here is the setup details:
1. Switch 3750-X 2. VLAN 100 - ( SVI IP address 192.168.100.1 /24) 3. VLAN 200 - ( SVI IP address 192.168.200.1 /24) 4. routed port gi1/0/48 (IP address 192.168.150.1 /24). Note: this port is directly connected to a firewall ASA 5520 port IP 192.168.150.100 /24
Ip routing is enabled on the switch and inter vlan traffic is flowing ok. I can ping the routed port gi1/0/48 from any computer connected in the VLAN 100 or 200. For example computer with IP 192.168.100.25 can ping the routed port 192.168.150.1. Switch can ping firewall port 192.168.150.100 and the 'sh ip route' command shows the network 192.168.150.0 /24 as directly connected network.
any computer in the two VLANs CANNOT ping firewall ASA port 192.168.150.100 Is it because inter VLAN routing does not work with a routed port on L3 switch? I looked up fallback bridging, but it is meant for non IP traffic.The goal is I am trying to set the ASA port as an internet gateway for VLANs.
I have aaa new model configured on a number of isr's(1800, 1900, 2900, 3800 etc). When i have aaa configured, the telnet logins use that authentication and not the password in the line vty portion. Is this by design. would disabling aaa enable both telnet and aaa authentications, essentially making it a dual login.
On the supervisor card of a cisco 6500 series, according to the following link, [URL] it only has 2 uplink ports on the card. Would I be correct in assuming that I only have those to ports that I can configure IP addresses on?
The cisco that is being devlivere is coming with a 48 port switch and 24 port fibre switch. Could I change any of those ports into a router port and configure IP addresses on those?
The supervisor card is a ws-sup-720-3b the 48 port switch is a ws-x6748-ge-tx the 24 port fibre switch is ws-x6724-sfp
I'm fairly new to Cisco products am in the process of developing my network knowledge on a deeper level. I have a 3825 with a HWIC-4ESW and I'm struggling to fully understand how the two "see" each other. I've setup a V LAN with a layer 3 address on the HWIC and added the switch ports to it. This seemed to allow devices connected to the switch ports to talk to the built-in router ports. I thought this was all making sense until i applied an access-list to the router port. It's a simple ACL i'm just using for testing and the only thing it does is blocks telnet from anywhere. I know the ACL is setup properly because if I connect a device directly to the router port i cannot telnet to the port. However, if i connect a device to one of the switch ports, i am able to telnet to the router port successfully.
It seems that I'm missing something with how traffic flows from the switch port to the router ports and how the two "see" each other.
I was looking for a way to connect an AUX port from a 1700 router to a 6500 switch module console port, to see the output of the Switch's on the 1700 router, in case there is a network downtime, I could see what's going on in the switch, what cable should I use ? Also, is there is any kind of documentation for this type of config what have I seen is very few info.
#sh run | inc user ! username USER0 secret 5 $1$passwordusername USER1 privilege 15 secret 5 $1$passwordusername USER2 privilege 15 secret 5 $1$password ! #sh run | inc aaa ! aaa new-modelaaa authentication login local_authen localaaa authentication login radius_authen group radius localaaa authorization consoleaaa authorization exec local_author localaaa authorization exec radius_author group radius localaaa session-id common ! #sh run | begin line vty ! line vty 0 4access-class 3 inexec-timeout 15 0authorization exec radius_authorlogging synchronouslogin authentication radius_authentransport input sshline vty 5 15!sh verCisco IOS Software, C3560 Software (C3560-IPSERVICESK9-M), Version 12.2(55)SE6, RELEASE SOFTWARE (fc1)
the intent of the above is that management connections will only be accepted via SSH, and all of those will be authenticated via RADIUS, unless it's down, then it will use the local username/pw combinations, most of which are given Privledge level 15. Telnet should never work.SSH works as expected (authenticates via RADIUS), but the problem is that Telnet also works, will ONLY use the local database (never RADIUS), and, for some reason, leaves the users at Privledge level 1, instead of the configured 15.Essentially, it seems that at every point I have told it to do something that isn't the default with regards to telnet, it ignores me.Prior to a recent IOS upgrade, the switch didn't support SSH, so the previous config was Telnet with RADIUS, and that worked fine.
I have set up a newly switch, cisco 3570C. Its in v15 and the only configuration i did is:
-set up interface ip add. 10.132.16.111 -set up telnet
I am able to telnet within LAN environment. I cant ping or telnet the switch in a WAN enviornment. Is there any setting i should confgure on the switch?
I have a Cisco 2960-S Switch, It is connected to a jack in the building to check the settings, Interface VLAN 1 has an ip, there is a default gateway, Any host connected to switch can access the network resources. But the problem is that I have to use Serial Cable to configure it. I cant ping or telnet into it from any other device. PC's are on different subnets/VLANS.
Basically this switch is connected to a port in a different switch, Do i have to make a trunk?
I have 2 switches. 2960 and 3750. I have trunk on both ports of the switch. there are couple of vlans and ports are assigned to those vlans. examples are management, voice and data. int vlan 1 has ip there is default gateway the hosts are able to connect to the internet when connected to the switch.