Network Engineering Stack Exchange
Network Engineering Stack Exchange

Most Popular

more tags
1500 questions
9
votes
1 answer

What happens when a subnet reaches capacity?

Other than not being able to claim any more IP addresses in a subnet, what other bad things happen when a subnet reaches 100% utilization, if anything?
UnworthyToast
  • 201
  • 1
  • 5
9
votes
1 answer

Unexpected AS-PATH ACL behavior

4 routers, lab environment. Trying to filter out routes originating from AS2 (not that leverage AS2 as transit). The process I've followed is: Bakers#sh ip bgp regex _2_ BGP table version is 41, local router ID is 33.33.33.33 Status codes: s…
A L
  • 3,310
  • 9
  • 33
  • 55
9
votes
1 answer

TCP Client / Server in Cisco EEM 3.0

I'm attempting to set up client / server sockets in Cisco EEM 3.0 TCL with IOS version 12.4(24)T8 (this was recently upgraded to determine whether the problem was EEM ver). I have the following two example Tcl scripts (ref: http://wiki.tcl.tk/15315…
Tarah
  • 276
  • 1
  • 6
9
votes
4 answers

Does IPv6 remove the need for a VPN?

I know that a VPN may be used in lots of different ways for lots of different things, so I'm not suggesting that IPv6 removes the need for a VPN completely. I'm interested in one particular use-case: I have a cellular (GSM) router, and…
banjaxed
  • 345
  • 3
  • 8
9
votes
2 answers

How can hosts with public IP addresses have nodes with private IP addresses in their traceroute?

I'm doing some research on users connected to Internet via cable operators and I've seen some unusual route traces. A bit about setup: Basically user has a home router connected to a DOCSIS modem. The router seems to receive a public IP address from…
AndrejaKo
  • 685
  • 1
  • 8
  • 15
9
votes
2 answers

What are common sizes to split a /29 - /32 IPv6 subnet?

As an LIR, you are getting a /29 to /32 network allocation by the RIPE, but I am a bit overwhelmed by the size of this subnet, and don't find a starting point to split this into common sizes. What we need to address with this subnet: office…
Maximilian Ruta
  • 223
  • 2
  • 4
9
votes
2 answers

Does Juniper set a control word on VPLS pseudowires

At the RIPE conference the was a talk about how MAC addresses starting with a 4or 6 may suffer from decreased performance because MPLS routers misinterpret the Ethernet packets as an IPv4/6 packet when load balancing over multiple…
Sebastian Wiesinger
  • 8,107
  • 3
  • 34
  • 60
9
votes
1 answer

Suppress confirmation prompts in IOS when copying files

I am about to upgrade the IOS on several hundred Cisco VG224's in preparation for a CUCM upgrade. I am attempting to streamline/automate this process as much as possible, and currently my main problem is the "confirmation" prompts that IOS gives…
Brett Lykins
  • 8,288
  • 5
  • 36
  • 66
9
votes
2 answers

Cisco AP not powering up until pressing mode button

We have two Cisco 2602E APs and one Cisco 3602E AP deployed at a location in China. They are connected to an HP ProCurve 2910al PoE switch. The 3602E powers up fine when the switch is rebooted (i.e. power loss, they have rolling blackouts in this…
some_guy_long_gone
  • 3,052
  • 1
  • 19
  • 30
9
votes
2 answers

AP3602 with rcvk9w8 image throws "%CDP_PD-2-POWER_LOW: All radios disabled"

We recently bought some new AP3602Es from Cisco. I'm trying to understand why this AP will not turn on the radio when we are sending enough power to the AP. I'm using inline power from the switch, but after the AP comes on, it sends…
Mike Pennington
  • 29,876
  • 11
  • 78
  • 152
9
votes
1 answer

Troubleshoot output drops cisco 3750x

Investigating output drops on a 3750x stack.. Two interfaces that connects to a file server (broadcom teamed interfaces) shows some output drops when i transfer large files. The utilization of the ports are still below the 1Gb port speed. As far…
user209
  • 894
  • 2
  • 11
  • 19
9
votes
1 answer

NCS Cisco Prime licenses

I am almost 100% sure this is not possible, but just thought about double checking with someone with more expertise on wireless. Suppose I have the following scenario: WLC-1 with 25 licenses on building 1 (5508) WLC-2 with 100 licences on building 2…
Brown Taylor
  • 453
  • 1
  • 4
  • 11
9
votes
4 answers

FTTH and alternatives

I was listening to a interview regarding the back country and Fiber to the home with the Swedish professor in telecommunications Per Ödling. Once in the interview he was referring to technologies that was on the way that was "as good as fiber" for…
Niclas Nilsson
  • 195
  • 6
9
votes
2 answers

Cisco ASA Routing Issue

I am working on a lab right now and am having some issues with ASA routing. Here is the current network topology: Currently if I login to the console on the ASA or Router I can get outside to the internet no problem. The second I login to the layer…
thefiddler
  • 345
  • 1
  • 3
  • 6
9
votes
1 answer

JUNIPER: Why is OSPF adjacency breaking when I enable FBF on an OSPF interface?

I've built a test lab where I am testing Filter Based Forwarding (FBF), aka Policy Based Routing. Question will follow below, but first, the details: Below is the topology diagram: OBJECTIVE: Any traffic destined to Staging from Site 1 should route…
NetEng76
  • 141
  • 7
1 2 3
…
99 100