Cisco Switching/Routing :: RIP Updates Not Getting From 1811 To 3750x?
Jan 8, 2013
I am trying to get a 1811 to update routes on a 3750x. My static routes are being redistributed to the switch fine, however my connected networks are not My router has Vlan with several subnets attached.
interface Vlan1
description $ETH-SW-LAUNCH$$INTF-INFO-FE 2$$ES_LAN$$FW_INSIDE$
ip address xxx.xx.xx7.185 255.255.255.0 secondary
ip address 172.90.0.185 255.255.255.0 secondary
ip address 172.99.0.1 255.255.255.0 secondary
ip address 10.170.10.254 255.255.255.0 secondary
[code]....
A host on the xxx.xx.xx6.0 network cannot ping a host on the 10.10.44.0 network. All ports on the switch and the router are in vlan1
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Jan 19, 2013
I have an 1841 running Advanced Enterprise Services 12.4(22)T3 that is functioning as a DHCP server and DNS server. What I am trying to figure out how to do is have the DNS service respond to queries about the clients of the dhcp service. I have successfully enabled it as a caching server for other requests, like "google.com" and "cisco.com", but what about the hosts on the local LAN?
As an example, let's say a Windows computer connects to the network with the hostname "computer" and receives an IP address from the 1841 with the domain name "test.net". I would like the 1841 to serve DNS queries for "computer.test.net" with the IP address that it assigned.
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Sep 5, 2012
I've got LACP-enabled port-channels between a Cisco 3750 stack and a few different switches (some Cisco 3750s and some Juniper EX2200s). The Ciscos are all sending slow LACP updates, the Junipers are sending fast LACP updates (but the Cisco they connect with is responding with slow LACP updates).
I have a couple of questions:
1) what are the pros and cons of slow vs fast updates? my research has led me to the conclusion that fast updates are better for network resiliency as long as you have plenty of bandwidth overhead (which I do at the moment). is there anything to add to this conclusion?
2) is there any way to configure the Cisco 3750s for fast updates?
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Nov 6, 2012
We have several DMVPN-connected sites that are connected to our 2821 ISR pair.They're all configured as eigrp stub connected summary. Yesterday, a few of the sites went inaccessible, but the VPN tunnels were still up and running. Upon further investigation, we noticed that the remote sites stopped receiving routing updates from our 2821's. As a quick fix, we added static routes to bring the sites back up.Later that night, we removed the static routes and cleared the eigrp neighbors, hoping it would fix the problem. When it didn't, we cleared them two more times.Suddenly, the router lost all downstream adjacencies. While we were adding statics to at least bring the sites back up, all of the adjacencies came back.
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Nov 1, 2012
I have cisco router 800 series 887 VAW. WiFi is connected to all my devices through this router, i.e., Windows XP, Vista, Wii, Nexus 7 and HTC Desire S. I can access internet from all these devices. The apps which are already downloaded on my Android devices connect to internet, but the bigest problem is here:
1. Google Play does not connect (on both Nexus 7 and Desire S).
2. Chrome does not work on Nexus 7
3. Nexus 7 fails to check for any system update.
4. Fails to sync accounts.
I tried to contact to the company which gave me this router, but they told the problem lies with my tablet. But the tablet works perfectly fine with others networks and Android phone works fine with 3G and other networks.
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Aug 30, 2012
I have a Cisco 1811 with a 4/port Serial Async/Sync (HWIC 4 A/S) and another 2 port A/S serial wic. My router seems to have a problem reading the 4/port card. I did some research and it looks like there shouldn't be a compatibility issue.
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Oct 30, 2012
My question is wrt policy-based routing on my network. Our switch is a 3560G 24PS running Adv Ip Services image. It is connected to an 1841 and an 1811 each with a dual-wan connection . The 3560 defines 6 vlans and we are using PBR to route some vlans via the 1841 and some vlans via the 1811.
From a client on one vlan a traceroute to a client on another vlan goes through the 1811 before being routed back to the 3560. Is it possible to use PBR to detect traffic that is destined for another vlan on the same switch and then route it directly?
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Feb 25, 2013
I have manual Cisco 1812 (1811) Integrated Srvice Router Cabling and Installation in front of meI have Cisco 1811 connected to my laptop according to this manualI have Cisco SDM latest version installed on my laptopI have DHCP enabled on my laptopThe problem that my laptop can't get valid IP adreess from the router (see att. laptop_, laptop_2)
Which IP address I have to use in order to get access to router inrerface (see. SDM_1)?
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Oct 25, 2012
Recently i atsrt having problems with my cisco router 1811/k9, apparently was booting continiosly when restarted.
After i connected my console i found the problem while booting:
DDR memory test failed. Resetting the router ...
I tried to contact cisco TAC, but i need a reseller contract number to place a ticket, i do not have a resller contract number as my router was bought more than two years ago. I called cisco support and they told me to contact my reseller, my reseller told me to contact cisco so i am in a eternal loop of forwarding phone calls...
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Sep 25, 2012
We have currently LMS 3.2 installed. We know have some new switches C2960-48PST-L that are not supported in CiscoView and Common Services.When trying an update in Software Center | Device Update, we receive an error message:Error while downloading package information from Cisco.com for the selected products. See the C:/PROGRA~1/CSCOpx/log/psu.log file for details.
The psu.log file shows the following:
[ Wed Sep 26 14:33:15 CEST 2012 ] INFO [SecurityHandler : getCSProxyLogin] : No proxy User Name configured
[ Wed Sep 26 14:33:15 CEST 2012 ] INFO [SecurityHandler : getCSProxyHost] : No proxy Host configured
[ Wed Sep 26 14:33:24 CEST 2012 ] INFO [SecurityHandler : getCSProxyHost] : No proxy Host configured
[ Wed Sep 26 14:33:24 CEST 2012 ] INFO [SecurityHandler : getCSProxyPort] : No proxy port confgured
[ Wed Sep 26 14:33:26 CEST 2012 ] INFO [SecurityHandler : getCSProxyHost] : No proxy Host configured
[ Wed Sep 26 14:33:26 CEST 2012 ] INFO [SecurityHandler : getCSProxyPort] : No proxy port confgured
[code]....
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Oct 2, 2012
I have Cisco 1811 and Cisco 2960 interconnect with each other by TRUNK link. As time pass i recieving below log on cisco 1811 router.
DTP-5-NONTRUNKPORTON: Port Fa8 has become non-trunk
LINEPROTO-5-UPDOWN: Line protocol on Interface FastEtherne t8, changed state to down
LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan100, changed state to down
LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan200, changed state to down
LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan300, changed state to down
LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan400, changed state to down
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Jan 17, 2013
My management has tasked me to give them a high level overview of the different switching we can choose for our new building.
This is what I know so far.4 Closets, each closet has 450 ports,One MDF room that is will contain one UCS Chassis and a Nimble iSCSI SAN.
I am working on the spreadsheet and it looks like this (Not totally filled):
2960s3560x3750x45064510Approx cost (Each, 48PORT, POE+, 10G uplink, Dual PS, IP BASE)
6K7K8K45K75KMax Capacity192432432192384Backplane speed206464520520ProLeast ExpensiveStackable to 9Stackable to 9ProDual PSDual PSDual PSDual PSDual PSProLayer 3 opt
Layer 3 optDual SupsDual SupsConExpensiveExpensiveConNo Dual PSConLayer 2 OnlyCannot stack more than 4
For the MDF I would like to use 2 Nexus 5548's with FEX's, and the layer 3 daughter board. For the IDF's I was thinking of two 4010's.
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Mar 6, 2013
i cant find any difference in these two devices when i am trying to compare throughput.I need upgrade our new POP and there will be around 4900 MAC adresses in VLAN 150 and 130 MAC adresses in vlan 200.Uplink is 1 gig routed internet connection and there is 14 downlinks to separate villages.i found a few differences for eg stack interface on 3750x but i dont need it.
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Dec 27, 2012
I have a stack of 2 x 3750X switches these are running 12.2(55)SE5. I needed to add some static IP routes and found that the ‘ip routing’ command is not supported. I came across a document that stated “On switches running the LAN base feature, static routing on VLANs is supported only with Cisco IOS Release 12.2(58)SE and later.” So I have upgraded to 12.2(58)SE2, but ‘ip routing’ is still not a valid command.
The release notes state:“On the Cisco Catalyst 3560-X and 3750-X Series, it adds support for 16 static IPv4 routes in the LAN Base image.”
I have read other posts that talk about running the ‘sdm prefer routing’ command which I have done, but I am still unable to add any routes or run the ‘ip routing’ command.
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Dec 9, 2012
I have an 1811 with several subnets connected to it.I recently installed a 3750x plant and want to bring my interior routing back to it.
All the routing is handled by the 1811 via secondary interfaces on vlan1?
I have 192 ports, and subnets show up on almost all of them. None of the ports are assigned to any specific vlans. Most ports have several subnets on them.
What is the best approach to getting the 3750x to handle the routing?
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May 22, 2013
my company pay a switch 3750 X. WS-C3750X-24T-E. It uses IP services basically but I failed to configure InterVLAN routing. why interVLAN routing doesn't work on my switch?
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Jan 24, 2013
I am setting up a vm environment for a customer in my lab off site. I have two stacked 3750-x switches, a san, and threes UCS c220 M3S servers for hosts. I am trying to separate the lan traffic, san iscsi traffic, and san management traffic using vlans. The problem is i'm unable to communicate cross vlan with my current config, which I have attached to this post. The only noteworthy things in my conifg is that the ip route 0.0.0.0 0.0.0.0 192.168.83.6 is referring to a switch stack they have on site, that I will connect this stack to using the first two trunk ports on each switch, that I do not have here in the lab. I don't want to cause any confusion in why I have things set a certain way.
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Mar 28, 2012
Why does my 3750x-12s switch say it's not supported in CNA??? I upgraded to CNA 5.7.1 and still says unsupported. This device is supported or I'm just missing something.I use CNA heavily to manage our MANY vlans.
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Mar 4, 2013
I want to confirm this is a licensing issue. On a 3750X with ipbase, I cannot create a vrf. So I would need the universal image, and that is a seperate license, correct?Is there a link that describes the difference bewteen ipbase and univeral images?
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May 22, 2013
I have a query regarding attached Network Design
PC---2960---3750(One Routed Port and All Switched Port)------------------------ 3750(One Routed Port and All Switched Port)-----2960------Internet
I have many Vlans on left side of image , Right Side of Image is having internet connection via Modem, and local connectivity between VLAN works fine but Other Vlans Except Vlan1 is able to Access Internet.Note that 3750X did not have NAT Feature ,How should I able to get Internet on Other Vlans (10,20)
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Jan 5, 2013
scenario A
A site .
PBX --->
Data ---> other brand router ----> 3750X ---> wan
[Code]....
How to know whether QoS work on the 3750X or not ? Is it correct about the config in scenario A ?
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Feb 3, 2013
I have a one question. I am using Cat3750x-48 switch. Suddenly it has occurred following high CPU log message in Cat3750x-48 switch.
%SYS-1-CPURISINGTHRESHOLD: Threshold: Total CPU Utilization(Total/Intr): 62%/0%, Top 3 processes(Pid/Util): 162/40%, 156/10%, 74/1%
What is meaning of PID 162 ?
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Jan 1, 2013
There seems to be a lot of conflicting information on what can and can't stack together in the 3750X range.
I know that LAN Base can only stack with other LAN Base switches.
Can IP Base stack with IP services in 3750X? I have also heard that the 15.x.x IOS restricts mixed feature set stacks?
I know that Cisco recommends that all switches in a stack have the same IOS and feature set but having all IP Services in a stack can get too expensive.
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May 7, 2013
I'm trying to review a QoS setup, and I'd like to make sure I fully understand the current setup before I change anything. I'm seeing output drops on two different queue-thresholds, but not sure how packets are making it to one of the queues.
Switch Version
CORE#show ver
Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 15.0(2)SE, RELEASE SOFTWARE (fc1)
System image file is "flash:/c3750e-universalk9-mz.150-2.SE/c3750e-universalk9-mz.150-2.SE.bin"
cisco WS-C3750X-24 (PowerPC405) processor (revision A0) with 262144K bytes of memory.
Switch Ports Model SW Version(code)
I can find queue4-threshold3 in the mappings, but how are packets getting mapped to queue2-threshold1? The priority queue is disabled for this interface, so I'm not sure how this queue is dropping packets, according to the maps nothing is mapped to 02-01.
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Mar 21, 2013
I am building a switch stack using 4 48 port 3750X switches that will also have the power stacked. If I install a single 715W power supply in each switch will the stack support 802.3af accross all 48 ports on each switch? My calculations are 48 ports x 15.4W which gives me almost 740W needed which is over hte 715W power supply. I was reading somewhere were it mentioned that in a powerstack additional power can be drawn from the stack. I know this will not work if you are trying to support power on all switches accross all ports but would it if say 2 of the 4 switches are needing to provide PoE accross all 48 ports? If I say we can only use 24 ports per switch for PoE that drops the power need down to 370W which I believe should work. Just trying to get a better understanding of PoE consumption. Would the best solution be to just add a second power supply to each switch?
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Nov 24, 2012
I have a switch which is rebooting it self, we bought it a year back,its a new switch, i did not find any error on sh ver after rebooting. I am using OP manager, i did not receive any alerts. I have done all diagnostic test, all are passed, i did not find any problem..
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Mar 1, 2013
I am having an odd issue on a couple of new 3750X switches.I am trying to configure VRF-lite and it is not recoginizing the command.Does that make any sense? I have goggled the syntax ans it should be right.
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Feb 4, 2013
we 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.
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Mar 7, 2013
This 3750X stack (3 members) has some 100% cpu spikes. Is this bad enough to start tracking down the cause(s) or is this somewhat typical and not a reason for concern? I just took this reading. How can you detemine when the 100% and 80% spikes occurred?
2222233333333332222222222444442222222223333322222222222222
7777733333333338888888888000007777777770000077777888887777
100
[Code].....
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Nov 1, 2012
I have two WS-C3750-48PS-S switches and I need to add two more. The new part number I am looking at is WS-C3750X-48P-S will these all stack together ?
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Jan 12, 2013
This is my scenario. I have my IP as 172.16.1.1 (aaaa.bbbb.cccc.dddd) which has full internet access. Now when i am not available in the office, i noticed some one assigning my IP in to his workstation and gaining full internet access. How do i restrict such things? i.e. even if some one assigning my IP on the network, they shouldnt access LAN or WAN.I tried 'arp 172.16.1.1 aaaa.bbbb.cccc.dddd arpa' configuring on my L3 Cisco 3750X switch assuming i can acheive, but that did not work.
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May 23, 2013
If the 3560 or 3750 "X" series support GRE.I am pretty certain the older 3750-E does not support GRE (both in hardware and software)Was hoping the new super duper X series do. If not, it could get expensive
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Oct 26, 2011
I have been looking to find out the list of features that the IP Base IOS has for the 3750X series switch. What would be ideal is a comparable list but essentially I need to know which of the LAN Base/IP Base/IP Services has SSH functionality.
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