Tagged Questions

Cisco is a major provider of switches and routers to most medium and large companies. Cisco devices often run IOS or NX-OS. This is a generic tag to be used when no more specific tags are available. See the partial list of tags in the full Tag Wiki.

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6 views

Multihomed Cisco VPN server

I am trying to configure Cisco 1841 with two external IPs to accept VPN connections on either external interface and maintain data flow through the interface on which VPN connection did happen. My ...
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0answers
4 views

Cisco 1602i CAP with mikrotik

Is it possible to configure Cisco controller based access points with Mikrotik controller ?? This is need to apply the same wifi profile on all access points, the AP now are Stand alone and i need ...
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4answers
101 views

Cisco IOS: Show incoming Telnet sessions

According to show ? the show sessions command is supposed to show Information about Telnet connections. Although I'm connected, the sessions does not show up. Both devices run Cisco IOS. How can I ...
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1answer
65 views

Do Juniper switches support vtp?

We have a mostly Cisco network, though for our access layer we usually deploy Juniper Virtual Chassis switches. To replicate this, we are interested in deploying a few juniper switches in our product ...
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0answers
9 views

Cisco Valet M10 [closed]

I have Cisco Valet M10 router. All the HTTPs connections are working fine for me but not http connections. I get error message saying page not available. On direct connection without router I am able ...
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0answers
9 views

What is the Cisco 7200 VXR Netflow Default Sample Rate?

I am trying to collect netflow data from a Cisco 7200 VXR router. I need to specify the sample rate, but I cannot seem to get the information from the cisco router and I do not know what the default ...
0
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1answer
30 views

How can I prevent myself from being automatically logged out of a cisco nexus switch because of inactivity

Is there a way where I can prevent myself from being logged out of a cisco nexus switch/router (or any other cisco device) after a period of inactivity? I get this message after being kicked off: ...
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1answer
20 views

Access files on remote computer via VPN

Environment: We have Office Mac Pro. I have Mac Mini at my home. I can connect to Office VPN. Question, How can I access file in Shared folder from Mac Pro from home? I have tried smb:// and afp:// ...
0
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1answer
28 views

Input traffic spikes on outside interface at same time every day

For the last two days I've had this issue where our internet connection SLOWS to a crawl and is almost unusable. I logged into our Cisco ASA 5500 (not very well versed with it) but I was able to see ...
2
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2answers
426 views

Cisco RV110W: Use LAN port as WAN? [on hold]

I have Cisco RV110W Wireless router. WAN port was burned after a storm. Can I use one of LAN ports as WAN? Looking under "Switch Settings" I can't find solution. In the Cisco documentation, I could ...
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0answers
17 views

Mac OS X Server 10.6.8 No Lan Access for times [closed]

I have a Mac OS X Server running 10.6.8 and a Cisco PIX 501 Firewall. Sometimes I cannot connect to the Mac Server (Ping, VNC, HTTP, FTP, etc.) from a higher level network (Computers attached to a ...
3
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1answer
41 views

Cisco CVE-2014-0224 Vulnerability

We have a Cisco RV-042 Small Business router and our PCI scans flagged it as being vulnerable to CVE-2014-0224 (CCS Injection/Man-in-the-Middle). It appears to be another OpenSSL vulnerability. We ...
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0answers
23 views

How to build a Layer 2 VPN across an uncontrolled network using cisco router?

We have two cisco 871 routers, one is in the datacenter with a fixed ip address, the other is at our office with a changing ip address(dsl with pppoe). How to build a L2 VPN for this scenario? I ...
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2answers
42 views

Cisco 887VA - Cannot open port 110

I am trying to configure a Cisco 887VA at work to open port 110, but no matter what I try, it doesn't seem to work. The router is accessed from within the building via a web UI but require CLI ...
0
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1answer
39 views

How to type a £ symbol over console with Cisco IOS?

I've noticed that I'm unable to type a UK-pound symbol (£) over the serial console using Cisco IOS 12.2. The symbol instead is interpreted as a hash (#). If I open the Windows character map and ...
0
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1answer
32 views

Cisco PIX Firewall Version 6.3(5)

I am unable to ssh to any servers. I've exhausted every possible thing except the corporate firewall. Its an old cisco pix firewall. [model] Cisco PIX 501 I'm trying to figure out 1) how to ...
0
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1answer
85 views

Is this a botnet? [closed]

I manage networking equipment at a small ISP for 60 highrise buildings. Each building has anywhere from 1 to 60 24 port switches, or some DSLAMs, or some coax gateways, with p2p radios on the roof, ...
0
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1answer
11 views

Connection to MGMNT iterface on Cisco DSC 9124-K9 lost

From some reasons i've lost connection to mgmnt interface in DSC9124-K9 - I cannot ping, cannot see MAC in arp. Fabric interfaces are working well, without problems so I do not want to reset whole ...
1
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2answers
43 views

Syslog does not record logs received over TCP to a file

I am trying to setup a centralized rsyslog server on CentOS 6.5 for Cisco routers and switches. On the Cisco devices, I've set the correct date/time and enabled timestamps, logging to the server over ...
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0answers
14 views

In what Cisco IOS versions is the “Show LLDP Neighbors” command available?

Could anyone help me with this? Or a place to find command and availability in versions or devices? I'm really new to networking. Thanks in advance.
0
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2answers
44 views

Cisco internal VLAN setup with access to public network

I have a Cisco 4948 switch that I'm dividing in half (half public, half private VLAN for NAS access). On the public side, Gi1/0 is the up-stream connection to the router, and G1/0-23 are configured ...
0
votes
1answer
59 views

What will happen if the fiber optic power budget exceed?

I know that before you use the fiber optic cable you should calculate the power budget and make sure that the total power should be below the Transceiver power budget margin to be sure that the system ...
0
votes
1answer
32 views

Wireless Router Username and Password Access

Does anyone know of a Wireless N Router that would allow me to setup Usernames and Passwords instead of an SSID and Password? The problem I am having is when my company lets an employee go I have to ...
1
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1answer
47 views

CISCO Catalyst switch API

I have a Cisco catalyst switch and there is a task to code some web gate which will allow billing to control ports in switch, gather different statistics, etc. What is the modern way to achieve that? ...
0
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2answers
51 views

How can I use SSH to run Cisco IOS commands in Global config mode?

I know about Kron, but there is supposedly no way to run global config commands: http://www.techrepublic.com/article/schedule-commands-with-cisco-ios-kron/ If I connect using Putty, Putty is able to ...
0
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1answer
16 views

snmpv3 EngineID for Traps in net-snmp

I'm trying to collect simple logs from Cisco devices using netsnmp with SNMP v3. I can get the messages to appear in my snmptrapd, but I have to manually add the EngineID to for them to talk. E.g., ...
1
vote
1answer
59 views

Cisco 2901 - IPSec VPN Maxing CPU

We have a Cisco 2901 on the edge of a 100Mbps/100Mbps WAN link which is providing an endpoint for an IPSec VPN to a Juniper SSG 550M. The problem is that we are seeing a max of 'only' 40Mbps over the ...
0
votes
1answer
39 views

Virtualized Linux firewall as router on the stick for cisco switch

I have got: Linux(virtual maschine on esxi) <---trunk---> cisco Switch. On virtual maschine vSwitch setup: VLAN ID 4095 Enables trunking on port group (VGT Mode) LINUX interfaces file: ...
0
votes
1answer
25 views

openconnect on startup at debian wheezy through ssh [closed]

I am trying to connect to Cisco vpn using open connect. I can do it with the terminal where it asks for my user and pass. However, is there any method for automating this on login.
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0answers
49 views

Cisco “show archive config diff” displays crypto pki [migrated]

I have a Cisco WS-C3560G-24PS. We're going to make some changes to it, so I ran the command show archive config diff to make sure everything is fine if we need to revert the changes. My problem is ...
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0answers
89 views

VLAN setup Cisco SG300 and SIP gateway

Hopefully someone can shed some light here. I'm quite new to networking and not too sure if I'm doing the right thing here. We are setting up a new VOIP phone system with SIP gateway for our company. ...
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0answers
14 views

Cisco 7921G IP Phone not working

Got my hands on a second hand 7921G wireless IP phone. It should be configurable via USB; but need drivers to do that ...
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0answers
16 views

SRP521W Intervlan routing and NAT

I've a Cisco SRP521W router which I've set up with two VLANs called normal_Lan and SWSVLAN. I don't want devices on each VLAN to communicate with each other so I've turned INTERVLAN Routing OFF. ...
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0answers
35 views

Cisco 2901 Inbound NAT with local IP overload

Overview We are replacing a Juniper SSG on one of our networks with a Cisco 2901. Everything has so far been quite smooth except some issues have come up with external ports needing to be opened. ...
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0answers
51 views

Cisco SG300 switch does not send RADIUS messages to server for 802.1x

I want to eventually configure the SG300 to authenticate wired clients with 802.1x and Microsoft NPS (RADIUS). I am currently testing this setup using a single port (Port 7) on my SG300, a test ...
-2
votes
1answer
37 views

How do I allow data to span from port to port on a Cisco ASA [closed]

I'm running a Cisco ASA5520. I could have sworn I had this set up when I installed the system and checked the right boxes in the "Wizard" in Cisco's ASDM, but data only goes from port to port if it ...
0
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0answers
52 views

Cisco SG300 Switch VLAN issue

We've got Cisco SG300 switch (in L2 mode) which we use to extend our network. It's ge10 port is connected to main switch (upper level, connected to different PC and Servers with no issues) and has ...
0
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1answer
50 views

can't ping the GW when configure linux with two vlans?

my scenario: vlan1 <--------> [interface0/1] L3 Switch [interface0/2]<-----------> vlan2 by follow this tutorial: vlan1 have one linux machine: I Configure Linux to have 2 Virtual ...
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1answer
44 views

high cpu usage on 2811 router

there is high cpu usage and high intterupt rate on 2811 router while there is low rate traffic about 10 Mbit. How can i fix this problem. output of sh processes cpu sorted 5sec | exc 0.00 command that ...
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0answers
38 views

How To Stop Cisco ASA Spoof Attack

I have thousands of "Deny TCP reverse path check from 10.60.60.X to 10.60.6X.X on interface outside" The IP addresses for the source and destination hosts are all over the board, and the interface is ...
0
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0answers
56 views

Cisco 887 router as an IKEv2 VPN server?

A follow up to this question. The scenario is exactly the same, but I replaced my 877 router with a 887VA running IOS 15.4. The VPN server configuration works exactly like before, and I can ...
0
votes
1answer
31 views

Cisco CGS2520 switch to reveal MAC address when port goes active?

Is there a way to have a Cisco switch reveal the MAC address of a device via Syslog when it is plugged in? I get messages that a device is connected, but there isn't a lot of detail: Sep 9 12:50:51 ...
1
vote
1answer
20 views

Cisco 10GB-T module port duplication issue

I purchased one two port 10GB-T ports network module (C3KX-NM-10GT) for my 3750-X switch stack (4 in the stack). After powering off the entire stack, plugging the module in, re-powered everything. ...
2
votes
3answers
90 views

VLAN planning and questions

I currently manage an environment with IP addressing of 10.10.10.x/23. We have 3 VLANS set up, and I use that term very loosely. The reason I say I use the term loosely is, the 3 VLANS have full ...
0
votes
1answer
80 views

Juniper with multiple DHCP pool connected to Cisco switch

Newbie question: In our law office we have the following setup: Juniper SRX connected to Cisco L3 switch via trunk port. Cisco switch has: VLAN 5 range: 10.4.0.10 - 250 /24 VLAN 6 range: ...
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0answers
54 views

squid3 wccp2 setting up gre tunnel from squid proxy to router

I am trying to setup a gre tunnel between a squid 3.1 proxy on linux debian, and a cisco router. I want to have web requests to port 80 to pass through the proxy first. I have created a gre tunnel ...
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0answers
36 views

DNS options on Cisco switch providing DHCP

At the company work for we decided to move DHCP duties from a Windows server to our 3750-X switch stack that's the gateway for our network. I researched the commands needed and cobbled together the ...
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0answers
37 views

Connecting to Access Switches Management Console via SSH

In a typical lab setup: [USER] -> [Cisco 2960X] -> [Cisco 3560X] -> [Firewall] -> [Router] 3560X carry all the internal routing, VLANs and is the VTP server. It has below IP settings: Management ...
0
votes
1answer
44 views

Completely block access to Cisco

There is Cisco Catalyst 3850 (WS-C3850-48T-E) which is managed only via management port. There are several VLANs on the switch. Also the switch works as a DHCP server. SNMP & SSH are already ...
0
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0answers
46 views

Reduce Bandwidth on a cisco router (Cisco 877)

PS:Sorry for my english i'm french so i'll try to write the best as I can. I looking since a few weeks now for a command to reduce the bandwidth on a cisco router. I done try a lot off command and ...