Protocols / Routing :: Corrupt ARP Table On Quidway R1760
Dec 10, 2012
I have a problem on a router of mine, a Quidway R 1760.The problem occurs as follows. On Friday I rebooted the device and the ARP table looked right, in other words there were only a hand fully of lines that looked like this.
[code]...
I have two requests/questions.how can I prevent it.to a software manual for a Quidway R 1760 or simlar? I need to access the routers OS but have no password for it and cannot find any commands on the internet.
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Jan 16, 2013
In datasheet of WS-SUP720-3B - link- was said that are only supported around 256K routes (fib?rib?).With this value I can't get 2 full bgp - that is around 850K ..
The supervisor is that control this or just memory ? I said this because I have a 7204-npe-g1 whith 2 fullrouting and 1G of and he are ok..
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Nov 12, 2012
We have two Cisco 3560E layer 3 switches at the core of our network. The switches are configured as an HSRP pair and the clients on our network point to the HSRP address as their default gateway. So if CORE-A dies, then CORE-B will pick up the address and the default route for the clients will continue to be available.We also need to specify a few static routes on the core switch to allow us to get to specific networks. Is there a way to do this so that the routes failover in the same way that the default gateway does?
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Jan 31, 2012
I tried the "Advanced Routing" Feature over the RV-042 V3 Dual WAN VPN Router , And the New IP Subnet i added ( 10.0.7.0 ) in the Static Routing Table does NOT Appear in the Routing Table of the Router. Please review the attached Print Screen for both the Static Routing Entry Configuration & the Routing Table of the RV-042 Router.
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Dec 5, 2012
I started using RIPv2 on Packet Tracer. I got two subnets to connect with two routers. After I completed that, I decided to add a third router. How to setup the Routing Table for atleast R3 ?
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Oct 2, 2012
I am using Cisco 2911 & IOS version is 15.1. My problem is that after some days (e.g. 15-20 days), the routing table suddenly stops updating & then I have to enter the default route again to make it up. I am using Track 1 to track default route here. After primary link goes down, the Track is also going down but after coming the primary link up, the track is not coming up. So, I have to add the default route again to make it up.
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Nov 14, 2012
We have small which I'm looking to implement and have built this on GNS3.
We have:
Router A in site 1
Router B in site 2
Router C in site 3
Router A and B are connection via a point to point 100M link and from Router C we have a 2 point to point one of which is 5Mpbs and going to Router A and Router B.
For Router C to reach Router A network it will go via Router B and these are 100M connection. When the link between Router A and B goes down. Router C should update and start using the 5m route.
For some reson, the routes are not updating. I have to do 'clea ip eigrp ne' for the routes to update and if I reload the routers all works well, it seems the problem is intermittent.
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May 22, 2013
I am attempting to filter a specific host(s) from my OSPF routiing table on a ASA 5550 (ABR) using LSA prefix lists. However, when I look at the other routers in that area, I notice that ALL LSA type-3's are being removed (10 hosts are now missing from the routing table). I have verified the filter is working on the ABR, but I can't figure why ALL hosts/routes that were coming into the area are now being filtered instead of the specific one that I want to filter out.
Here is the config on the ABR:
prefix-list pdm_pl_000 seq 10 permit 206.253.180.137/32
!
!
router ospf 1
network 10.0.0.0 255.255.255.0 area 0
network 10.150.10.0 255.255.255.0 area 10
network 10.150.252.0 255.255.255.224 area 10
[code]....
The 206.253.180.137 host is actually coming from Area '3'. Am I doing something that is removing all type-3 LSA's?
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May 28, 2011
I'm learning about iptables, but I don't fully understand the chains of NAT table (prerouting, postrouting and output).I'm specially in doubt about prerouting and postrouting. As far as I know, DNAT can be made with prerouting and SNAT can be made with postrouting, so I think prerouting is for input and postrouting is for output, but the material I'm reading (and another sources) are not clear.
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Dec 8, 2012
I have this routing table which I need to fill in for the network shown in the image attached. guide me to some good resources to understand
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Nov 2, 2011
Hope u all fine and doing well, Everything i donwload at end it's crrupt After download finished when opining files Files Crrupt Error.
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Feb 4, 2013
We have a BGP / OSPF configuration as shown in the topology picture. When the connection towards Internet is taken down, we expect the traffic to be forwarded toward WAN 2 (preferred) or WAN 1. The problem is that the BGP learned routes disappears when the Internet connection is taken down. The IP routing table on R2 only shows internal networks and the networks between R2 and WAN 1 and 2. No routes to internet is shown. We run "show ip bgp neighbors <ip-to-wan-1-router> received-routes" it contain internet routes. And when we run "show ip bgp neighbors <ip-to-wan-1-router> routes" it contains no routes at all.
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Feb 22, 2011
Which data structure used to preparation of a routing table.
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May 9, 2012
I am currently using 2 routers. One is a 2wire router with stock firmware it is connecting to the internet and can't be altered all too much, it also has a PC connected to it. The other is a WRT54GL with Tomato on it with pretty much EVERY other PC and device connected to it, it is also connected to the 2wire and DMZ'd through it.What I want to do is somehow allow everything on the Tomato router to have access to the 2wire router's PC. (For media access or printers or whatever on Windows 7)
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Apr 2, 2013
viewtopic.php?f=33&t=24000
How can you remove these "L" routes in routing table?
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Jul 2, 2012
What are the rough figures that a NPE-G2 is able to hold for the BGP routing table?
378475 network entries using 51472600 bytes of memory 378482 path entries using 21194992 bytes of memory 63008/63003 BGP path/bestpath attribute entries using 8065024 bytes of memory BGP using 82975730 total bytes of memory
Are these 3 memories different memory allocated or are they are a sub-set of each other? If a NPE-G2 has 1GB RAM, does it mean that the routing table limit is depending on the RAM availability?
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May 26, 2013
What is the size of the routing table in the 800 series?
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Oct 6, 2011
I have an externaL free Agent Hard Drive that I have a corrupt folder on. I would first like to fix it but if not possible I would like to delete it.
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Jan 23, 2011
I need to remove (or change) the default entry in the routing table for Windows XP, which routes packets with a destination equal to the adapter's address to localhost. The reason for this is I want the PC to be able to send packets to a device (with IP address A) connected to one adapter on the PC with IP address B, even though a second adapter on the PC has IP address A.
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Nov 27, 2012
Is there a Table which the list the route table entries on Cisco ISR Router especially ISR 1921 Router.
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Feb 6, 2013
On the 6509, with normal 67xx cards installed, where is all the mac table held, is it held on the card itself or on the supervisor? And if I use dcef cards, I gather the MSFC copies the mac table to the DFC ?
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Jan 11, 2012
Cisco 1812, Version 12.3(8)YI1..What does "none" mean ?Most of mac adressess in cam has specified interface, but several has none.
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Apr 12, 2011
I have a Dell Vostro 200 desktop, about 5 years old. I tried to update the latest Flipshare Video software but it corrupted partway through. system can't find the folders to uninstall so I can reinstall either the previous or the most up-to-date version. I tried the uninstall in safe mode as well with no luck.flip is in husband's name so I can't contact flip for support.
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Jan 19, 2013
Every file I download seems to be corrupt, although, files I download from another computer and put on a flash drive and install them from the flash drive work no problems at all. I'm putting this here because this might be relevant to the problem, my AMD display driver crashes every once and a while for no particular reason and WhoCrashed points to atikmdag.sys being the problem (I believe I may have fixed the BSOD through a guide) but nevertheless I would like to find out what is causing this. I've been testing things for three days now, different PSU, same, RAM tests came back okay, CHKDSK came back okay as well as wiping my hard drive and re installing windows, fresh download of all the drivers, latest display drivers, no viruses, and done everything on the "Why do I get the NSIS error list"
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Jul 1, 2010
I am downloading the latest firmware for the Annex A version of the AM200 DSL modem and windows (7 / 2003 / 2008) is unable to extract the contents of the zip.
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Dec 10, 2011
I occassionally see an issue on my network wherein a few of my devices (my phone, my wife's iPod, and my Ethernet-connected HTPC) will continually return a bad username/password combo when accessing services like Gmail (IMAP/Exchange), Pandora (HTTPS), or Boxee (HTTPS). The seem to have problems at the same time, which makes me think they are doing this as a result of something failing on my router (and yes, I'm certain the saved passwords are all correct since I won't change them and they'll start working again later).
Whenever the problem occurs, I'm making sure the date/time are right on my devices (i.e. certificate validity dates) and that they all sill have normal internet access. If I had to speculate, I'd guess this problem his happening when my router is under significant load and it's dropping some SSL packets.
I'm running the Linksys WRT310N v2 with firmware 2.0.0. I see there's an updated firmware available (2.0.1), but haven't yet applied it - and the release notes don't speak to my problem at all. I've rebooted the router after the last occurrence
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Jan 9, 2013
We installed a new ASA 5510 (ver 8.3(1)) on the weekend and since then have had one isolated email issue.Here is the situation. We have a remote office that connects to us via IPsec site-to-site tunnel. They remote in to one of our servers and from that server email themselves PDF's. They have their own exchange server for general use, but the emails sent from our server go through our exchange server of course. The received email shows the user as the sender AND receiver. This previously worked fine.Since installing the ASA though, users get the following error when they try to open the document: "There was an error opening this document. The file is damaged and could not be repaired."They tried this with a text file and the same thing occured. I have disabled SMTP inspection and have omitted the remote office from the CSC SSM scanning. This has not worked. The remote office also has an ASA 5510 (ver 8.2) but no changes were made this weekend. No updates were applied to Exchange this weekend.Previously my office was using a Cisco 1800, Cisco VPN Concentrator 3000 and Untangle gateway box. I replaced all 3 with the ASA. My supervisor is currently at this remote location and he can still email himself attachments from that particular server with no problem through the tunnel.
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Feb 9, 2013
I've tried to download the .docx document to both Win and Mac computers. On both platforms MS Word complains that the document is corrupt.
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Jul 7, 2012
I know its probably got something to do with EIGRP no auto-summary, I was wondering if I could get some input as to why a route would change from being variably subnetted, which is usually the case until no auto-summary is deployed. Or am I totally lost? I attached a screen shot for a closer observation.
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Feb 19, 2012
I am in need to have the arp table cleared every 5 seconds or so on a 2800 router. I was wondering how I might be able to accomplish this.
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Jul 23, 2012
My 2821 router has an arp table with the wrong ip to Mac mappings. The impact is that I can reach any host in the 10.1.1.1 subnet. I can reach hosts in the 192.168.35.0 just fine. [code] It is as if the 192.168.35.1 device is answering all arp requests as a proxy arp or something. Clear arp-cache nor clear ip arp on my 2821 have any affect.
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Apr 8, 2013
we have 6500 cisco switch as a backbone switch in universty. When ı want to look mac addres table , it does no show all mac address.ı mean if ı type ;show mac address-table there are not all mac address.
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Feb 21, 2012
we have a 3750 and use dhcp services on the switch. every so often we run out of ip's even though we have much less users than the size of the allocated dhcp pool. I've noticed that the dhcp bind table is full but a ping-sweep only shows very few ip's being assinged and used. It looks like the IP addresses are not being released from the table even though I have decreased the lease time to 8 hours.
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