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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:

, , , , ,

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BGP path prepended route not listed anywhere

We have a simple multi-homed setup with two routers that advertise our AS to two ISP. The second ISP (ISP B) is only used for backup when ISP A goes down, so we prepended our AS 3 times on this route. Note: These are example ASN, not the real…
Julien Vehent
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Why did my Cisco router hang?

We have a Cisco 1841 in our storage IDF that was originally running a 12.4(1) IP-BASE image; I wanted to upgrade to an advancedservicesk9-mz image, but the flash did not have enough space, so I deleted the running image. Later I tried inserting a…
Mike Pennington
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Load balancing with Cisco router

I have a Cisco router with two bonded T1's which are setup as a VPN to the main office. We need more bandwidth but can't get other connections (or it's too costly), so I would like to have a dsl connection installed. This DSL connection will run…
dingalingchickenwiing
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Cisco network icon topology misleading, is it really considered standard?

Cisco says: Cisco icons are globally recognized and generally accepted as standard for network icon topologies However, some of those icons are very misleading, see for instance: So I hesitate to use them in documentation, and find it hard to…
Nicolas Raoul
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Cisco FC SAN switch decision

I've got to buy a bunch of FC SAN switches in the next week or so, I have to, and want to, buy Cisco MDSs. Servers are HP BL490c G6's in C7000 chassis with Virtual-Connect Flex-10 ethernet interconnects and VC FC interconnects (Emulex HBAs btw), all…
Chopper3
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Cisco vs Everything else

A huge debate raged when we were setting up a new phone system. The guys doing the install did not believe in paying high prices for Cisco gear when they could do the same things with lower priced alternatives. From what I have seen Cisco is rock…
Terry
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Why is my Cisco 877 Router booting with garbage characters throughout?

My Cisco 877 is booting with the following results, and I'm looking to understand why. The below is happening consistently. I'm doing this via console cable to my PC using HyperTerminal. The first portion of the boot output is as expected. I reach:…
Robbie
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Cisco access list logging. Why is there a difference between IPv4 and IPv6?

I've got a Cisco 877 router. I've got an IPv4 access list and an IPv6 access list set up and configured similar to this: interface Dialer1 ... ip access-group INTERET-IN ipv6 traffic-filter IPV6-IN The Access lists are similar to…
growse
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Is Etherchannel actually needed on a Cisco switch when configuring NIC teaming on a server?

As per subject: I have some HP servers that support NIC teaming (O.S. is Windows Server 2008 R2), and I have a Cisco switch that supports Etherchannel. Do I need to configure a channel on the switch for teamed NICs of each server in order to take…
Massimo
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Cisco ASA LDAP Group Privilege Level

We have a pair of ASA 5510s (8.4.3) on which we use LDAP authentication for VPN and SSH access. On all of our Catalyst switches, which use RADIUS, we're able to set the shell:priv-lvl to 15 in the RADIUS config (2008R2 NPS). However, the best I…
bab
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On a Cisco switch, how do I see the difference between current VLAN settings and those that have been written to memory?

If a switch gets rebooted and the settings haven't been "wr"d, when it comes back up things will be all wrong. I want to see what the current vlan settings are vs what has been "wr"d. Thanks!! Edit: Er... I meant like the difference between…
cat pants
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Fast Ethernet module for Cisco 2620

I have a Cisco 2620 Router. It comes with one fast ethernet port built in (circled in red), and one old AUI ethernet module is installed (circled in blue). I figure I can put a transceiver on the AUI interface to get a second RJ45 connector. What…
Kenny Rasschaert
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1000 Mbit/s fiber switch to 100 Mbit/s fiber switch - no communication

This morning, I troubleshooted a fiber connection between two switches in the same building. It was a single-mode fiber. I knew this fiber was fine, because I had installed it myself and tested (with my OTDR) after installation. My customer was…
renosis
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Is my ASA 5505 almost dead?

I just got a refurbished ASA 5505. It works fine until un need to reload it or unplug it from power and replug it, when I do this and it's warm (even after some minutes of uses, so still physicaly cold while touching it), in this case, it simply…
Kedare
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4 answers

Cisco Get Current Interface Throughput

I can graph a device interface with SNMP tools, platforms like Cacti even make pretty graphs, but these are based on polling intervals (typically, every 5 minutes). I can use the CLI; r1>show int gi0/0 GigabitEthernet0/0 is up, line protocol is up…
jwbensley
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