Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [cisco]

Cisco is a provider of switches and routers to commercial consumers. Cisco devices run IOS or NX-OS operating systems. 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.

Cisco is a provider of switches and routers to many medium and large companies. Cisco devices often run IOS or NX-OS operating systems.

Since Cisco acquisition of Linksys, the consumer line of switches, firewalls and routers (which do NOT run IOS) have been rebranded under the Cisco name.

This tag is a generic tag - Wherever possible a more specific tag related to the product you are using should be used instead. For example:

, , , , ,

2629 questions
1
vote
3 answers

Issue forwarding port through Cisco 881 router

I am ultimately trying to set up a PPTP VPN server inside my firewall, but to verify that the router will be configured correctly first, I am trying to pass SSH through the Cisco 881 to the SSH server (10.10.100.20). It seems like my configuration…
Dan McClain
  • 6,563
  • 1
  • 21
  • 24
1
vote
3 answers

Cisco ASA Hairpinning with Dynamic IP

I currently have my Cisco ASA 5505 firewall configured to forward port 80 from the outside interface to a host on my dmz interface. I also need to allow clients on my inside interface to access the host in the dmz by entering the public ip / dns…
Joseph Sturtevant
  • 1,274
  • 3
  • 15
  • 17
1
vote
1 answer

Network components responsible for blocking or interfering with long URLs

UPDATE: While we were working on this problem, we realized that HTTPS traffic does not suffer from the "long url" problem (unless, of course, you have an exceptionally long domain name). This is because the query string of the URL is encrypted in…
Ben McCormack
  • 705
  • 4
  • 9
  • 16
1
vote
8 answers

Automatic WAN failover

My workplace has two WAN links, one of which we use as a backup. Both links terminate as Cat5. Unfortunately, we've had bad luck with "dual-WAN" routers, so our current failover plan is to unplug our consumer-class router from one modem and plug it…
Jon
1
vote
2 answers

Cisco PIX 8.0.4, static address mapping not working?

upgrading a working Pix running 5.3.1 to 8.0.4. The memory/IOS upgrade went fine, but the 8.0.4 configuration is not quite working 100%. The 5.3.1 config on which it was based is working fine. Basically, I have three networks (inside, outside, dmz)…
Bill
1
vote
2 answers

Simplest way to do failover routing with Dell PowerConnect core switch

I have a number of remote sites connecting back to head office via Cisco ASA 5505s and Cisco PIX 506es. At head office we have an old Cisco 3000 VPN Concentrator, and a new Cisco ASA 5510. The remote sites use Easy VPN to connect (so they show up…
dunxd
  • 9,632
  • 22
  • 81
  • 118
1
vote
1 answer

Settings up SNMP between a Cisco Router and Linux Box

My end goal is just to see some sort of data out from a Cisco Router 3662. Data like total connections and bandwidth used. I am attempting to use SNMP. I think I have snmp running correctly but I have no idea where the snmp data goes. I am having…
Joseph Montanez
  • 113
  • 1
  • 5
1
vote
2 answers

Change DHCP discover frequecy on CISCO?

Is it possible to change the frequency that a CISCO router sends a DHCP discover packet? Or is there a way to poke it and make it request one?
Shawn J. Goff
  • 415
  • 5
  • 13
1
vote
1 answer

Procurve Switch Multiple Gateways

I have a Procurve 3500yl switch that is currently handling all of the VLANs and the default gateway for my network. Currently, the gateway is set to our old FreeBSD firewall/router and I am trying to switch the traffic to our new Cisco router. I…
user49349
  • 101
  • 2
  • 6
1
vote
3 answers

What do you call it when you have two subnets and find the a common SUPERsubnet that can be used to access both of them?4

I have a Networking test in about 6 hours and I lost my notes on the subject matter and can't recall what the acronym was! Here's the problem case: Given the address 150.20.0.0/27 find the following subnets and appropriate 'subsubnets' (what's that…
Sergio Tapia
1
vote
2 answers

Cisco Switchport Throughput Monitoring with SNMP?

I have a Cisco 4500 that I would like to perform network throughput monitoring on. Which OID should I be looking at to get this information? What options to I have at otherwise getting this information? Where should I look at for browsing the…
MattUebel
  • 927
  • 4
  • 13
  • 32
1
vote
1 answer

dropped connection when port forwarding on Cisco 1841

I'm trying to setup remote access to a security DVR inside of a client's network. The network admin has setup port forwarding on their Cisco 1841 - each device (there are two DVRs) requires a single port for access. External IP:2000 -->…
Jason
  • 193
  • 5
1
vote
3 answers

Cisco IOS router MAC or IP address filtering

I'm trying to filter a specific device from my network. Either MAC or IP address filtering would do the trick, but I have trouble finding the exact Cisco IOS commands to use. My router is a Cisco 870 and the device is connected through wifi (if that…
SaltyNuts
  • 275
  • 1
  • 6
  • 12
1
vote
1 answer

how Router,Switch,Hub categories into Collision Domain and Broadcast Domain?

I always get confuse with this concept. of how many Collision domain.. and broadcast domain for Networking devices and how they work in Collision and broadcast domain . ? Switch Hub & Router in CD and BD ?
Vishwanath dalvi
1
vote
3 answers

Cisco: Route based on vlan

Is it possible in a cisco router to route based on vlan? I have in the router 2 vlans, and 2 possible ways to go out: One vlan should be routed to a certain ip One vlan should be routed to the "outside world" (the router is also an adsl modem) I…
cpf
  • 287
  • 4
  • 11
1 2 3
…
99 100