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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1answer
26 views

Cisco ASA5505 - icmp deny any outside breaks internet - how to block outside pings?

We want to block any ICMP requests that are initiated to our network from the public internet. I ran icmp deny any outside, but when I do that, it takes down our internet - nobody can load web pages. ...
0
votes
1answer
25 views

Connecting two Cisco Routers on the same subnet via ethernet

We have two routers. One is a Cisco UC540, the other is a Cisco 891F. The UC540 manages our VOIP but has been reaching maximum CPU usage. We are trying to separate our data and our voice networks ...
0
votes
1answer
29 views

need to add IP access list to ACL for Cisco Switch Access

Can't figure out what I'm doing wrong here. I could not access my Cisco 3750 switch from the data center IP earlier today. It's in extended IP list but not standard. I can access from both IPs in ...
0
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0answers
34 views

Remote Desktop can not access LAN PC

Have a Cisco VPN - I am able to login, and RDP to the SBS server. When I try to access the LAN PC's they are not responding. ireshark the connections on all the PCS at the time of the request, and I ...
0
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0answers
11 views

time based policy map on cisco 6500 with sup720 cards

We are trying to limit an internal subnet (/24) to a bandwidth limit of 15 mbps during the week day time. It seems to constantly be limiting the subnet during all times however: PCN6500#sh policy-map ...
0
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0answers
16 views

Cisco catalyst network module 3850-nm-4-10g link is off

I am going through the installation guide for the cicso module referenced above and It says if the leds are not on that "link is off". It doesn't say what this means or what causes this. Is it just a ...
1
vote
1answer
61 views

Trouble Shooting errdisabled Cause

I have a Cisco Catalyst 3850. I added a network module with 4 gbic for fiber connection. The module is not showing any lights on either side of the connection. After the searching the depths of the ...
0
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0answers
46 views

DHCP option 43 on switch Dell PowerConnect 5500

I have Dell PowerConnect 5524. Put SW01(config-dhcp)# option 43 hex f104ac1338fa got Option code 43 is not a valid HEX string. Strange. Its worked ok for me on Cisco device. Looking at User ...
0
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0answers
43 views

How to use SNMP to get port state of all VLAN in Cisco switch

I am working on using SNMP to get the state of the port of a spanning tree. I used OID .1.3.6.1.2.1.17.2.15.1.3 and it returned the state of the port. e.g. C:\Users\imuntol>snmpwalk -v 2c -c test ...
0
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0answers
10 views

Running GVRP and VTP on the same network

Within are network we have HP 5400zl switches with GVRP and CISCO 2950 switches with VTP. Is it possible to run GVRP and VTP on the same network without any problem? I know that GVRP and VTP not ...
2
votes
0answers
49 views

Cisco 2851, nodes on local network can access Internet but router can't [closed]

I am using a 2851, on GE0/1 I have a BT OpenReach VDSL modem and GE0/0 goes to a switch and the rest of my network. The desired configuration is pretty straight forward and mostly works, I want the ...
0
votes
1answer
54 views

bandwidth monitoring by TCP/UDP port on Cisco 2960 or Linux

We have an international line between two sites with limited bandwidth. I want to monitor bandwidth usage between the two sites, and understand which type of traffic consumes the most. Ideally I ...
1
vote
0answers
14 views

Is it possible to run the Cisco NX-OS 6.x copy command without the prompt to select a VRF?

I am currently working with a network scanning tool that logs into Cisco routers and runs commands on those routers. The problem I'm encountering has to do with what the copy command expects. The copy ...
-1
votes
1answer
26 views

Cisco sg500-24p web-based configuration utility ip adress

How can i know what is the ip adress to the web-based control panel for my Cisco sg500 if it is not the default and if i don't want to rest the switch, i need to change vlan for a port ? The switch ...
0
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0answers
35 views

HP Proliant and Cisco 3560G LACP - Up Sngl-port-Bndl Mstr Not-in-Bndl

I have to connect two GigaEthernet ports to get 2Gbps. I´m trying to connect a switch 3560G to a HPProliant DL 380G6 to give 2Gbps to the server through the switch. I use LACP in switch in this way: ...
0
votes
0answers
14 views

configure SNAT on traffic over IPSEC VPN on cisco router

I have a site to site VPN to a cisco router from an openswan on linux. 10.1.1.0/24===177.19.158.163[+S=C]...189.125.24.142<189.125.24.142[+S=C]===172.16.100.0/24 The VPN is working properly. But ...
0
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0answers
23 views

Translating Cisco ASA nat rules to Palo Alto fw

So we're going to be replacing a cisco ASA with a plao alto firewall and because of reasons, testing ahead of time is not exactly a thing. So I'm setting up the config on the palo alto ahead of time ...
1
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1answer
72 views

Linux GRE keep alive

What are possibilities in Linux kernel (?) to work with Cisco endpoint encorporating GRE keep-alives? We have GRE IPsec tunnel set up with another company. We would like to have backup tunnel which ...
2
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0answers
31 views

Manually specify a tunnel gateway for an IPSec VPN Connection (ASA)

I have currently got several VPN's on-premise that are setup on the outside interface and using the default gateway on the interface as an originating source of the VPN tunnel. Although the outside ...
1
vote
0answers
82 views

What are the differences between Blue coat ProxySG and Cisco Ironport?

What are the main differences between ProxySG and Cisco's Ironport Appliances? I already found out: Cisco's Ironport: - is only available as a scalable Hardware Appliance (not Virtual) - high ...
0
votes
2answers
69 views

Inter VLAN Routing Issue

Here's what I have setup 3 Networks across 3 switches (3x C3650) 10.7.64.x/24 (Vlan 7) 10.10.10.x/24 (Vlan 20) 192.168.1.x/24 (Vlan 15) The switches are all connected to each other, with Switch ...
-4
votes
1answer
56 views

Windows 10 client GPO to favor DHCP server over another one [closed]

We have a cisco RV180W and a Windows server 2012R2, both acting as DHCP servers, the cisco is here to serve IP's if our server is down, but it's been a week since it has taken the lead into DHCP ...
1
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0answers
37 views

Cisco vWLC sha2 certificates not supported bug?

I currently have an app running with a Cisco virtual Wireless Lan Controller, all works fine except we get some error messages regarding SHA1 certificates, when I'm looking for SHA2 support the cisco ...
2
votes
0answers
82 views

Strongswan to Cisco ASA

I have a problem with connection two nets with IPsec. On the one side is Cisco ASA 55xx on the other TP-Link router with Debian 8.3 with StrongSwan behind the NAT. The problem also that I have ...
0
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0answers
42 views

VLAN Cisco Packet Tracer

Im creating a VLAN and i have connected everything right but I need to use the classfull C network 192.168.0.1 and subnet it to 4 equal size network.. So far i know the first IP on PC0 & PC4 I ...
0
votes
1answer
82 views

Cisco Nexus 7000 Multicast IGMP Snooping enabled - packets got to all interfaces

I have connected three servers to Cisco Nexus 7000 switch. Server1 send multicast packets, server2 subscribes to multicast packets and server3 is for the tests. No matter if I subscribe to multicast ...
1
vote
1answer
104 views

Catalyst 2960-X no xmodem or tftp transfer

I tried to upgrade the IOS on a Catalyst 2960-X stack with three members. The upgrade failed and left me with three switches without bootable files. So I connect to the rommon via console using ...
1
vote
1answer
202 views

RV325 to RV320 site to site ipsec tunnel

Gateway to gateway tunnel from RV325 to RV320 (either direction) won't connect. I can't find any sort of error log. Both are WAN1 (only one connected) and IKE PSK. Both local and remote groups ...
0
votes
1answer
85 views

First ping (to any destination) fails from switch but not from router

I've got a basic network setup, just doing NAT to a single public address to an internal /24 without any VLAN's or fancy routing. Both my router and switch are running Cisco IOS 12.x. My ...
0
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0answers
168 views

Site to Site VPN one-way traffic Azure <-> Cisco ASA

We have a site-to-site static routing VPN (classic VPN, not ARM) attempting to connect to a remote Cisco ASA 5555 (a supported VPN device). The on-premise network can successfully initiate the tunnel ...
0
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0answers
15 views

Cisco VWLC redirect page without authentication, radius or dhcp?

I have a virtual Cisco CMX sytem for the tracking of customers in a smalland a virtual Wireless Lan Controller also from cisco, in it's webconfigure I can choose for it to redirect to a webpage we ...
0
votes
1answer
47 views

Forwarding IPs to Switch for NAT

I have a Question. We actually have a Cisco 1812 Router and we're Switching to an ASA 5512-X. The Problem is, the ASA 5512-X only has 6 Ports. The 1812, had 8. All in use. We need to translate 3 ...
0
votes
0answers
50 views

Configuration of VLAN for managing computers on the other side of a switch?

I have a modestly smart Cisco SG200 switch connected to our institute's Ethernet network. To this switch, I connected four Linux and Windows computers. (So, the configuration is: one network ...
0
votes
3answers
31 views

Cisco IOS NAT assistance

I am a cisco newbie, I have configured VLANS, dhcp, can get an IP address on my local machine. I can't seem to get out to the internet from said machine. Am I missing something in my NAT setup? ...
0
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0answers
33 views

Can't route traffic from Cisco to Asterisk over port 5060

My VOiP provider has informed me that I must route incoming calls from my Cisco router to my Asterisk server to port 5060. I can ping my Asterisk server from my Cisco router fine, there's a direct ...
2
votes
0answers
52 views

Creating additional VLANs on Cisco SG200

I would like to create 2 separate VLANs using a Cisco SG200-series smart switch (layer 2) where the devices would not see each other, while being able to connect to the internet. The setup is simple, ...
1
vote
0answers
202 views

Cisco vpn connect failure [closed]

I am trying to connect through Cisco Anyconnect secure mobility client to my office vpn site but getting this error: The IPsec VPN connection was terminated due to an authentication failure or ...
1
vote
1answer
61 views

Setting up Cisco ASA VPN to use both radius and local users

I've got a Cisco ASA setup with L2TP/IPSec VPN, all is working well except for one minor issue. Ideally, I'd like to be able to log on to the VPN using either that RADIUS server users or the local ...
-1
votes
1answer
90 views

Cisco Router - How do I host multiple websites with one public IP

I'm having some difficulty configuring my Cisco 4300 Series router to host multiple websites with a single public IP. I have created my access lists, but the techs over there tell me I must have one ...
0
votes
1answer
237 views

%Invalid interface type and number

I am trying to apply a scenario from the Cisco CCENT book where a 2811 Router uses VLANs. I have applied the network as is in the book inside my Packet Tracer. Here is the section in the book and ...
1
vote
1answer
28 views

Cisco SG200-50, accessing a network printer from 2 VLANs

The requirement is to create an additional (guest) VLAN (a Cisco SG200-series smart switch is used) so that the devices on the guest VLAN could not see those on the internal network (the default ...
0
votes
1answer
88 views

Cisco WAP321 dropping ARP packets

At my office we have 4 WAP321 connected directly to a Cisco 891f router. Randomly throughout the day, computers will lose access to the network. They will remain connected to the Wifi SSID, but can't ...
2
votes
1answer
160 views

ASA 5510 Secondary Public IP Range on outside interface

We are in process of upgrading from an ASA5505 to an ASA5510. I have a co-location configured for 3 ranges of public IP addresses on two different subnets. The 5505 is working as expected. Example ...
0
votes
1answer
55 views

Cisco Aironet 1200 dhcp relay config

It's about 6 years since I last configured an IOS device and I have forgot a lot of it sadly! I got a Cisco Aironet 1200 AP ( IOS (tm) C1200 Software (C1200-K9W7-M), Version 12.3(2)JA2, RELEASE ...
0
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0answers
35 views

Site to Site VPN connection is not established between cisco routers in GNS3

guys. In a Scenario I'm using sokootRtr1 as CA server and sokootRtr2 as CA client. As the following, both routers have their digital certificates; sokootRtr1#sh crypto pki certificates CA ...
2
votes
0answers
27 views

Cisco Switch Routing performance monitoring

It is quite a question for me: I have Cisco Catalyst 2960S switch which is nice hardware even despite its age and EOL. I'd like to set it as small router between several networks within a remote ...
0
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0answers
46 views

Cisco ME3400 IP-Based Bandwidth Limitation

The Cisco we use is: show version Cisco IOS Software, ME340x Software (ME340x-METROIPACCESSK9-M), Version 12.2(55)SE, RELEASE SOFTWARE (fc2) Technical Support: http://www.cisco.com/techsupport ...
1
vote
1answer
56 views

DHCP Server Port-Based Address Allocation on Cisco switch 2960-x

I am trying to configure DHCP Server on a Cisco 2960-X switch to achieve port-based address allocation. I would like the IP address assigned to any device connected to that port to be the same every ...
1
vote
1answer
72 views

Replace client switches with Netgear to match core or instead mix/match Cisco?

We are looking for how we can have a more reliable, simpler network. How can we keep out administrative burden low, and work smarter not harder when it comes to our infrastructure? Background: We ...
0
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0answers
73 views

Site to site vpn with one vpn endpoint behind NAT

I building an IOS <> Strongswan vpn between 2 host and following this exact guide: http://www.cisco.com/c/en/us/support/docs/ip/internet-key-exchange-ike/117258-config-l2l.html I use ikev1 since ...