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Questions tagged [ios]

The operating system used on the majority of Cisco's routers and switches; a package of routing, switching, internetworking and telecommunications functions tightly integrated with a multitasking operating system. For Apple's mobile device OS, use apple-ios.

309 questions
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ASA 5540 Enable Password Issue

I have a Cisco ASA 5540 running the following Software/Manager version: Cisco Adaptive Security Appliance Software Version 8.2(2)17 Device Manager Version 6.3(2) I use ASDM to make changes to the firewall on a constant basis with no issues.…
Anonymous
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Do you actually keep IOS up to date?

In quite a few environments I see Cisco hardware treated as 'set it and forget it'. Many admins just don't even think about updating IOS. If you look in places like Packstorm or Bugtraq, some months you will see tons of attacks all centered at IOS.…
Terry
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Cisco IOS PBR - PBRing Skype

I've got a very simple question, which seems to be extremely difficult when put into practice. I have a Cisco IOS router with two Internet links (one over a WAN, through a proxy, everywhere, etc.) the other direct Internet. Most traffic destined for…
Azz
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What "reachability" means in a routing table?

Check this routing table track 1 ip route 10.46.52.5 255.255.255.255 reachability ip route 10.1.0.0 255.255.128.0 10.243.222.1 track 1 ip route 10.1.128.0 255.255.128.0 10.243.222.1 track 1 ip route 0.0.0.0 0.0.0.0 10.11.70.2 name FW_INTERNET ip…
Ricardo Polo Jaramillo
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What characters are illegal in Cisco IOS username secret passwords?

I am using username secret to add users with encrypted passwords to our switches and firewall. I have been battling with the same switches and firewall for a couple of hours trying to get securely generated hard passwords for all admins. Sometimes,…
Alain O'Dea
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Can we route video on my redundant link while the primary is up and turn it off if the primary fails over to secondary?

We have a remote location that is currently routing data over a satellite connection. I am adding a cellular fail over if the satellite goes down. I have been asked to install video cameras that will stream video, but this takes a lot of bandwidth…
user45741
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How do I setup dynamic VLAN assignment on an autonomous Cisco 1142n?

I've gotten my Cisco 1142n autonomous AP configured with every option under the sun, but I still can't get dynamic VLAN assignment working! I verified the following: I give priority to VLAN assignment via RADIUS with aaa authorization network…
gooddelta
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Cisco 2811 to Forefront - stop broadcast traffic

I recently upgraded from an old ISA to a Forefront box. I'm now receiving a ton of 0xc0040050 errors. The vast majority are to an internal broadcast address - 100.100.100.255. This is a legacy subnet that runs on VLAN 1. I have three VLANs defined…
Tim Brigham
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Trunk port wont accept the Printer vlan

I have three switches daisy-chained together and I have a printer vlan serviced with a print server off the core (1st) switch. the middle switch trunk port will not accept the printer vlan. I issue the following command "switchport trunk allowed…
Mark Detchemendy
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Cisco ACL Not Applying

This is probably something extreamly simple but I am executing the following code to block usage of port 80 on ip 192.168.1.50 and it does not seem to be working. The interface is right and I am using a Cisco Router 2820. Here is the code I…
Al Katawazi
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Cisco SNMP OID for track/SLA monitor

I have Cisco 3600 router, and a few SLA monitors configured. Based on these monitors, I make a decision where to route users (basically a failover). It works very smooth and nice, to the point where no one notices when one of the connections goes…
Sergey
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Cisco IOS: Is ip inspect used?

There is a Cisco IOS router with the following code in it. The below code seems to define Context-based Access Control Engine inspection rules. I don't think any of this is used. The only occurences of the words SDM_HIGH, DEFAULT100, inspect, appfw…
700 Software
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IOS traffic-export equivalent for Junos

In IOS the traffic-export command allows you to take incoming packets and send them, unaltered, to a specific interface. Is there an equivalent way to do this in Junos? I've got a J-series 2350 here. Initially I was going to look at the port mapping…
John
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Cisco 1760 T1 Setup

My 1760 has a WIC1-T1 card in Slot 0 and the slot 0 "OK" light is lit. When the router boots it shows that it sees the T1 card. I would like to configure my T1. I received the following details from my ISP: * Removed IP's IP Version: IPv4 Router…
Joseph
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IOS not saving evaluate rule in access-list

I have a basic firewall set up on an pretty od IOS in form of IPv6 access list exterior-in6 evaluate exterior-reflect sequence 1 permit ipv6 any host [my external address] sequence 10 permit tcp any host [my internal address] eq 22 sequence…
DeeJay1
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