Cisco Switching/Routing :: ASR 1002 And Udp Broadcast
May 16, 2013Since a upgrade in IOS XE 3.0.9, our ASR 1002 have a problem with the DHCPDISCOVER.
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Cisco Switching/Routing :: Can Create Svi On ASR 1002
Apr 22, 2013I need to know, can i create svi on the ASR 1002 ?
View 2 Replies View RelatedCisco Switching/Routing :: L2 Vs L3 Between 1002 And 3750X Core?
Feb 4, 2013we are replacing network equipment at one of our sites. The network will have 12, 3750X switches(6 stacks) - one stack will be the core. A 1002 will be the WAN router to the Main campus. The 1002 will connect to the core via 2 ethernet cables. I'm debating whether to use L3 or L2 between the router and Core. I've heard that routing is more efficient if L3 is used and also I will be able to create an L3 etherchannel between the 1002 and Core switch. See the attached doc.
View 6 Replies View RelatedCisco Switching/Routing :: Use Of Vlan 1002 - 1005
Aug 14, 2012i've heard that it is now possible to use Vlan 1002 -1005, perhaps only on certain devices.
View 3 Replies View RelatedCisco Switching/Routing :: 1002 ASR Sometimes Vlan User Will Not Be Able To Access
Apr 2, 2013We are having Cisco router 1002 ASR and 2841 switch. Some times perticular VLAN user will not be able to access the network but from the same switch others VLAN users can able to access. We were getting ARP entries in router but we cannot ping the IP's. Even we clear the ARP entries. Once we restart the switch users can access the network. We have changed vlan ports, uplink too. but problem not solved. and we observed CPU utilization will be going 70-80% some times and at same time switch hangs.
View 3 Replies View RelatedCisco Switching/Routing :: ASR 1002 Inter-chassis Redundancy
Sep 9, 2012Can any share some useful links on how this works and how to configure it? Do you still need to configure FHRP or does configuring redundancy take care of active/standby relationship between the ASR's?
View 2 Replies View RelatedCisco Switching/Routing :: ASR 1002 Router Will No Longer Communicate With Anything
Feb 12, 2013I was asked to configure a new ASR 1002 today and after successfully puttintg the config on the router (via TFTP) the router will no longer communicate with anything. There is nothing in the config to cause this (it was actually pulled off a working production ASR 1002) and I am unable to ping a local loop back IP while consoled into the router?? I removed the config, reloaded the router and configured a new loop back - same issue cannot ping the loop back or anything else connected to this router.
View 7 Replies View RelatedCisco Switching/Routing :: ASR 1002 Enable TACACS On This Router
Feb 12, 2013We have CISCO ASR 1002 router on our DC, I want to enable TACACS on this router.what is the usage of key, we need a separate key for every device? or. [code]
View 9 Replies View RelatedCisco Switching/Routing :: ASR 1002 - 2 Ports To Emulate At L2 Switched Port
Jun 12, 2012I know that the ASR 1002 has 4 integrated ports but the problem that I am having is that I need two of those ports to emulate a L2 switched port. Is that doable?
If not than I need to purchase the following module below. Is that price really true?
Cisco Switching/Routing ::1002 Layer 3 Ether-channel Vs Two Separate Links
May 19, 2013We were going to create a 2 port, layer 3 etherchannel between a 1002 router and a 3750X layer 3 core switch. We wanted to create bunled link between them but, now we are going to be putting a Riverbed device between the router and core switch. Because of this, would it be best to abandon the idea of creating a layer 3 etherchannel and just have 2 links from the router and core switch and have traffic load balance between the 2 links?The Riverbed will have 2 connections into it from the Core switch and 2 connections into it from the 1002 router. I was hoping to keep the layer 3 etherchannel but, do you think it would be best to create 2, /29 nets and have the router/Riverbed and Core Switch/Riverbed load balance.
View 5 Replies View RelatedCisco Switching/Routing :: 2821 Forwarding Udp Broadcast
Jul 31, 2012I have 2821 router configured with two subinterfaces. This router is connected on cisco 2960 switch. The trunk on 2960 is configured without any prunning of vlans. I noticed that udp broadcast traffic is being forwarded through my router on native vlan 1 (this interaface do not have ip address configured). Below is configuration:
Router:
interface GigabitEthernet0/0
no ip address
duplex auto
[Code]....
Cisco Switching/Routing :: 891W ISR / Can't Get SSID To Broadcast
May 27, 2012I'm working with some 891W's that have the internal 800-series AP. I have this router set up initially using Cisco Config Express, then, using Cisco Config Professional 2.5 I set up the firewall and other featuress that CCE doesn't do. Overall this is a very simple router, meant to be a small business Internet gateway device but is currently in my lab.
The intended WLAN setup is very simple. One SSID, with broadcast enabled, using WPA2-Personal. Auth: open Encryption is both TKIP and AES-CCM.
However no matter what I do I cannot get thhis thing to broadcast . In the past I had sometimes run into issues where if I had more than one AP running independently it would cause a channel conflict and one or both would cancel each other's radio, so I disabled all other AP's in my vicinity.
Also I've had issues in the past where f I enabled both TKIP and AES, sometimes clients can't find the AP as a result. My solution had been to disable one of them leaving just the other - no change here however.
Via the IOS, ssid config shows mbssid guest-mode which I believce is default.
Interestingly, if I do the following:
ap# Config t
ap(config)# dot11 ssid <myssid>
ap(config - ssid)#guest-mode
end
I end up with both "guest-mode" and "mbssid guest-mode" in the sh run for the AP, and voila, my AP broadcasts the SSID. However clients end up joining without any security at all, no prompts for pre-shared key or anything.
Cisco Switching/Routing :: ASA 5500 - IP Directed Broadcast - Wake On Lan
Dec 17, 2007how to configure the ASA 5500 with "Directed Broadcast" for Wake of lan from other networksegment. we want pass traffic from 192.168.10.0 network to 192.168.100.0 DMZ Network to turn on the server with Wake on Lan.
I read something about "Static NAT" but how do i make this one?
Cisco Switching/Routing :: 1841 / Blocking Broadcast In Network
Oct 4, 2012I am using 1841 LAN router. Recently some broadcast is happening in our network when some users are connected. I need to block them automatically by detecting who are they.
I can block them manually but i want router to detect them and block.
Cisco Switching/Routing :: Allowing DHCP / ARP Broadcast Through Nexus 3048TP?
May 8, 2013I have a 3945 with a basic DHCP configuration applied to it. This 3945 is connected into one of the access ports of my nexus switch. I'd like to simply have the 3945 hand ip addresses out to other clients connected to the nexus switch. I have zero experience with nexus & haven't been able to turn much up through searching the net.
View 1 Replies View RelatedCisco Switching/Routing :: SG-300 VLAN And Multiple Subnet Domain Broadcast
Jan 25, 2012I recently bought SG-300 28P to create the VLAN. My network hs 3 subnet 192.168.1.0, 192.168.2.0 and 192.168.3.0.My main net work is 192.168.1.0. I want to divide it to VLAN to eliminate the boardcast storm; especially from the domain 192.168.3.0
But I want all the devices from 192.168.1.0 to access other subnet.
Cisco Switching/Routing :: 3750 / How To Identify Broadcast Traffic Source
Feb 23, 2012We have 2 switches split across 2 datacentres connected via an interconnect. Over the past couple of days the interconnect provider's Cisco kit has shut down our port (err-disabled) due to a broadcast storm. They had the level set at 1 which I thought was a bit low. They say they tried to set to 2, then 5 but still kept tripping the storm-control feature so they set at 10. They say they've always had it set at 1% (on a 100Mb switch) and so we must be generating more broadcast traffic.
I'm trying to identify where the broadcast traffic is coming from. On our Cisco 3750 I've clear interface counters and when I do a sh run | i broadcasts there are a few ports which have what seems like a high broadcast count. The one port that is especially high and the only one tripping the storm-control feature (I've enabled on all our ports to try to identify where the traffic is coming from) is the port connected to the 100Mb interconnect. I've mirrored that port to another port and connected a server with wireshark so I can capture all the traffic across that port.
What I'm struggling to find is the source of the broadcast traffic.I have a few questions are these broadcasts layer 3 or layer 2 broadcasts. Also in the output below when it says broadcasts received is this inbound to the port i.e. from the connected device or is this a total of inbound and outbound broadcasts.
When I use wireshark and filter the capture on broadcasts (ff:ff:ff:ff:ff:ff) I see only 200-300 compared to the thousands the switch is reporting.If I filter on the broadcast IP address I also don't see the numbers corresponding to what I see in the show interface output.
GigabitEthernet1/0/1 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 0014.a93f.7401 (bia 0014.a93f.7401)
Description: Interconnect
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 4/255, rxload 44/255
Encapsulation ARPA, loopback not set
[code].....
also I'm currently doing : monitor session 1 source int g1/0/1 both, and also tried just rx incase I just need to be looking at receive traffic but still nothing is standing out.
Cisco Switching/Routing :: EIGRP And HSRP Being Broadcast To End User Ports On 6509?
Nov 14, 2011Is there away to disable the mulicasting of eigrp and hsrp to the end user ports on a 6509?
View 2 Replies View RelatedCisco Switching/Routing :: How To Limit Broadcast Traffic On 3560 Switch Port
Dec 17, 2012How do I limit broadcast/mulitcast traffic on a switchport to e.g. 5000 pps ? I don't want the port to shut down, just block or drop broadcast traffic that exceeds 5000 pps.
View 19 Replies View RelatedCisco Switching/Routing :: 3750x Switches / 32 Loop Back Responding As A Broadcast?
Jun 7, 2012I have a bunch of 3750x switches that each have a 10 gig routed link back to a central 4507 (loopback = 172.30.255.255).We carved up a /24 (of course, the /24 doesn't really exist except in our address tracking spreadsheet) into a bunch of /30's for routed WAN links and /32's for loopback addresses.We started on the low end for /30 subnets (ie 172.30.255.0/30, 172.30.255.4/30, etc.).We started at the high end for the /32 loopbacks (ie 172.30.255.255/32, 172.30.255.254/32, etc.)
Well, when I try pinging 172.30.255.255 from the access layer 3750x switches, the 3750x seems to be treating it as a broadcast ping where it lists each member that responds instead of the regular !!!!! response (this makes think something is odd with the 3750x). Of course, only one member responds (the core). But even the core seems to respond with the other end of the /30 instead of the actual /32 loopback (which makes me think something is odd in the core). I could have sworn that I've setup similar topologies without problems (ie, using 10.0.0.0/32, 10.255.255.255/32, etc as loopbacks) and as long as the mask is a /32, it should work.Also, I can ping/ssh to that loopback if my laptop is on a directly connected subnet. But I can't do it from any of the 3750x switches (which are also directly connected).I've double checked for overlapping subnets, but nope. I don't see any. Routing looks fine. The actual /32 is being propagated everywhere properly.
Cisco Switching/Routing :: 2960G / 3650G - Non-broadcast Traffic Appearing Across VLAN
Jul 5, 2012We run a network of several 2960G and 3650G switches in a network with a number of VLANs. One one particular VLAN (let's call it VLAN 10) it appears that non-broadcast traffic (i.e. normal unicast traffic) is being copied to every port in VLAN 10 only on one switch . The traffic is not crossing trunk ports and does not appear on other switches that have ports in VLAN 10. We first spotted this by noticing that a UPS port had an unusual amount of activity on our port througput graphs:
This traffic at 4 am is not expected and this profile is repeated across all ports in VLAN 10 on this switch (a WS-C2960S-48TD-L stack running IOS 15.0(1)SE3)\iffed one port using local SPAN (the UPS port) and discovered that this traffic was not broadcast, which was running at a normal low rate at all times. The traffic appeared to be unicast traffic from other ports of the sort you might see on a hub. It was from various hosts that live on VLAN 10, most (not all) of the conversations had one end station homed on the 'problem' switch. There are about 800 non-broadcast packets per hour and this is a busy VLAN so it does not account for all the traffic on the VLAN.
Cisco Switching/Routing :: C6509 - Broadcast Not Working Between Primary And Secondary IP Address
May 11, 2012I have recently configured secondary ip address on LAN Interface of Cisco C6509.. We have some application which needs to use broadcast traffic communication to communicate with client... Broadcast is working within subnet & also working from broadcast server to primary subnet. But not working from secondary subnet.. I have checked broadcast within secondary IP range & it's working fine... Secondary not working broadcast with primary and also with broadcast server... broadcast address is different for these subnet but both should be communicate since configured on same interface... When I went through Cisco website found that command "ip directed broadcast" which will pass broadcast to different subnet... But I'm not sure whether any other impact if I enable that command on particular Ethernet interface...
View 6 Replies View RelatedCisco Switching/Routing :: 4500 / 3560 / 2950 - Slow Network / Broadcast
Jan 31, 2012Our network feels slow and trying to find the best way to investigate this properly. We have Cisco chassis 4500 with mix of 3560/2950 Edge switches 1GB backbones and WLC/WCS in place. The network is broken into multiple V LANS and IOS on our switches haven't been updated in 3-4 years.
On a wireless laptop (G) with get throughput of 1-2MB/s transfer speed with usually 10 clients per AP and LAN we get anywhere between 7-15 MB/s transfer. Using wire shark on a wireless laptop we see a lot broadcast traffic from other clients and the same for LAN. What is the best way to troubleshoot performance issues on the network and where do I start?
Cisco WAN :: 1002 - ASR Not Doing Basic Routing
Dec 25, 2012I have 2 sub net directly connected to a ASR 1002. This is the configuration
interface GigabitEthernet0/0/0
ip address 193.145.14.114 255.255.255.252
negotiation auto
[Code] ....
The interface gi0/0/0 is connected directly to 193.147.14.113/30 in another router. And the Gi0/1/1 is connected to my internal infra structure. From my router I can ping 193.145.14.113 . So. I configure my PC with default-gateway 193.147.107.3 (ASR).
From my PC
I can ping 193.147.107.3 (gi 0/1/1)
I can ping 193.145.14.114 (gi 0/0/0)
But I can not ping 193.145.14.113 (the other point connected to gi0/0/0)
Why???? It is a IP inside of a sub net directly connected to the ASR. Why the ASR is not doing routing? ip routing is enable.
Protocols / Routing :: How To Calculate Broadcast Address
Apr 27, 2012How can know the Broadcast address before subnetting? I know how to calculate the broadcast address , but don't understand 'Broadcast address before subnetting'?
View 2 Replies View RelatedCisco WAN :: 3825 Routing Loop In OSPF Broadcast Network
Jun 23, 2011I have 30 branch all over the country.There we have Cisco 3825 Series router at HO, and 892/k9m 1841 and 1811 routers in BO.My branches are being connected to HO via dual link which has been linked with two ISPs,both are Layer 2 link provided by the service provider,
-ISP1 subnet: 172.19.0.0/24
-ISP2 subnet: 172.20.0.0/24
usually i have the route pointing to HO ip from each branch routers. [code] Where, there are four branches acting as the gateway for the branch router 172.20.0.13. What cause the problem,and how can I solve this issue permanently?
Cisco WAN :: BTU And AMP For ASR 1002
Oct 8, 2011I would like to know the technical Specification regarding the AC power supply for ASR1002.
I need to know the following:
Voltage
Amp
BTU
Watt
BTU and AMP for ASR 1002?
Cisco WAN :: ASR ASR 1002 Port Not Going Up With 100 Mb?
Jun 28, 2011I have one ASR 1002 router and one GSR router. when i insert SFP-OC48-IR1 module with GSR and connect 100 Mb link that comming from MUX then the GSR port is up but when the link is connect with ASR with same module the port not going up.i had cross check the module GSR to ASR but the problem remain same.
View 1 Replies View RelatedCisco WAN :: ASR 1002-F Bridging
Oct 27, 2012I have Cisco router ASR 1002-F on which I have created two subinterface, Gigabitethernet 0/0/1.333 and Gigabitethernet 0/0/2.111. I try to bridge those two subinterface but no success. I can create bridg-group and everything needed but I can not add subinterface to specific bridge-group. If I try write command bridge-group on subinterface there is not even possible to chose this command.
View 1 Replies View RelatedCisco VPN :: ASR 1002 / ISR 1841 - Get VPN
Mar 6, 2011OK ran into a little problem with getting this to work. Only group members participate in the encryption process, correct?
I have numerous remotes all coming into one central location. I set up a KS and have currently only 2 of the remote routers set up as GM's, with the intention of the others coming into play as I move forward. Here is basically what I have in my KS and GM's:
KS
crypto isakmp policy 10 encr aes authentication pre-share group 2crypto isakmp key testkey address [code].........
GM's
crypto isakmp policy 10 encr aes authentication pre-share group 2 lifetime [code]....
So I applied the crypto map to the serial interfaces on my routers on either side of the cloud (central-ASR1002 and remote-ISR1841). When I did this, ALL the remotes went down and I'm not sure why. Even the ones that didn't have anything to do with gdoi. Ya, it wasn't good. I thought that only the group members would be affected.
Is it the fact that my acl is encrypting any to any? Surely I don't have to reverse that and have two statements with the same syntax. I'm basically just trying to encrypt all traffic from specific remotes back to the central side. However, I'm trying to do it without taking down the rest of my network .
Cisco :: Monitoring ASR 1002 With IOS-XE In IPM 4.2
Oct 26, 2011We are running LMS 3.2 with IPM 4.2 installed....and we are looking to do IPSLA monitoring on a couple of our Cisco ASR's with IOS-XE code installed.
I looked at the IPSLA feature mapping and it only talks about supported IOS code....do we need to upgrade our current IPM module to a current version?
Cisco WAN :: Asr 1002 Changing A Route Map
Oct 23, 2012I have route-map defined on my ASR 1002 12.2(33)XNE and applied to my gi0/0/1 interface. I need to change the IP address defined on the "set ip next-hop ..." line. My question is, when I make the change in just the route-map definition, does the change take effect immediately, or do I need to remove and re-apply the "ip policy route-map ..." statement on the interface? If I do have to remove and re-apply, will this be service-affecting for all the traffic flowing through the interface? I'm just not sure what to expect.
View 2 Replies View RelatedCisco VPN :: ASA And Aggressive Mode In ASR 1002
Jan 8, 2013I have Cisco ASR 1002, code XE 3.4.1 doing site-2-site VPN with an ASA managed by another company that I have no control over running 8.3 (I think).the site-2-site vpn is very easy straight forward as follows.
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