Cisco :: Packet Marking In Router

Oct 12, 2012

i'm doing B.E., final year.My project is IP we hav to mark packets in router.Is it possibe to mark packet in cisco packet tracer?

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Cisco WAN :: Packet Generator For DSCP Marking 866Vae

Feb 20, 2011

My new small router 866vae crashes and makes cold reboots every 20-30 minutes. I updated IOS, but it didn't work. The logs show texts like this:

Possible software fault. Upon reccurence,crashinfo, "show tech" and contact Cisco Technical Support. http serverip http access-class 23ip http authentication localip http secure-serverip http timeout-policy idle 60 life 86400 requests 10000!ip dns serverip nat inside source list 101 interface Dialer0 overload!dialer-list 1 protocol ip permitmac-address-table aging-time 15no cdp run!access-list 23 permit 101 permit ip anyaccess-list 111 permit udp any eq bootps any eq bootpcaccess-list 111 permit tcp any anyaccess-list 111 permit udp any anyaccess-list 111 permit icmp any any echo-replyaccess-list 111 permit icmp any any time-exceededaccess-list 111 permit icmp any any unreachableaccess-list 111 permit icmp any any administratively-prohibitedaccess-list 111 permit icmp any any echoaccess-list 111 permit gre any any!control-plane!!line con 0login localno modem enableline aux 0line vty 0 4access-class 23 inprivilege level 15login localtransport input telnet!scheduler allocate 60000 1000!end

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Cisco WAN :: 7200 - Egress Netflow V9 And Output Packet Marking Order

Aug 17, 2011

when using egress netflow (v9) and output marking.
The topologie : Server <-----> R1 1>-----<1 R2 2>----<2 R3
R2 is a 7200 with c7200p-adventerprisek9-mz.124-15.T11.bin What I'm doing :- R2 forwards ping packets from Server to R3. When they arrive on R2, icmp packets are marked with CS3

- I change the DSCP to CS4 on R2 before forwarding packet to R3. I'm using for that an output service-policy on the R2-2 interface like this : interface ATM2/0.36 point-to-point

ip address
ip flow ingress
ip flow egress


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Cisco WAN :: Which DSCP Marking To Use For Ex90s

May 17, 2011

1) which DSCP marking to use for ex90s(HD video)?
2)  as a test we are planning do to deploy ex90 at few of locations. at  location 1 we will do DSCP EF marking while at the other location we  will do DSCP AF41 for video..assume, LOC1 calls LOC2: so,  when video traffic from LOC1 arrives to LOC2 will it be marked as EF?  and when traffic from LOC2 arrives LOC1 then traffic will be marked as  AF41? if yes, then will there be any issue sometimes in case if we run  out of bandwidth for EF?

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Cisco WAN :: 877 - Policy Map Not Marking Packets

Aug 22, 2011

I have a weird issue with a QOS policy that I have implemented. Details are below.
This is basically the policy I have created. It is running on a Cisco 877 router (running Advance IP Services 12.4). The internet connection is an Internode ADSL service.
class-map match-any VOIP
match access-group name VOICE-OUT


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Cisco WAN :: QOS Marking Query Of 7206VXR

Nov 2, 2011

We have subscribed for MPLS links from Service provider we have a DC where the core connectivity is 90 MB and Remote branch location Connectivity is 64 Kbps. We are in process of enabling QOS for our links with co-ordination with Service provider ; as per our finding the branches have more RX traffic (downloading) so after discussion with provider we were advised to mark traffic from the core end and give it to the provider.The provider at its PE will honor the marking and set some B/W percentages and prioroty based on the DSCP marking values.
We need to mark this traffic so it is feasible to mark the traffic at the core DC router which has the below H/W details,Cisco 7206VXR (NPE-G2) processor (revision A) with 917504K/65536K bytes of memory.
Processor board ID 36161439
MPC7448 CPU at 1666Mhz, Implementation 0, Rev 2.2
6 slot VXR midplane, Version 2.11
or is it feasible to mark the traffic at the core switch.

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Cisco WAN :: 3725 / Marking A Traffic With AF31

May 29, 2012

I have a Cisco 3725 router with IOS version "Cisco IOS Software, 3700 Software (C3725-ADVIPSERVICESK9-M), Version 12.4(12)". And this router is serving as a CE route for our MPLS connection to the service Provider. We do also have multiple VRFs ( around 10) and the WAN interface is DS3. So we created point-to-point subinterfaces and we put them in different vrfs. We have now transitioned to a new ISP and the ISP requested us to mark all of our outgoing traffics with DSCP AF31. So I have created the following policy-map
policy-map TRAFFIC-OUT-WAN-AF31
  set ip dscp af31 
class-map match-any TRAFFIC-OUT-WAN
match any  
Now we do have multiple GRE tunnel interfaces sourced from one of the WAN subinterface ( which is a member of VRF A). So the moment I applied the the policy-map  on this WAN sub-interface (using the syntax "service-policy out TRAFFIC-OUT-WAN-AF31"), most of the GRE tunnels went down. And there is eBGP running on top of these GRE tunnels.

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Cisco Routers :: SRP521 DSCP Marking On QoS?

Jun 14, 2012

I am running 1.1.24 and spa303 phones I have a qos policy setup to mark all packets                  
The following is my qos

makring enabled
Value 0xb8
On my upstream device I only allow traffic that is marked with this dscp value.  No traffic is coming through.  RTP traffic is marked because it comes off the phone marked but I would expect the qos Policy so mark everything going to that ip space to be marked.

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Cisco WAN :: Marking Traffic On 3020 Switch?

Nov 25, 2012

I want to mark traffic on Cisco 3020 switch entering to interface gigabitEthernet 0/1 ingress direction with DSCP values. interface gigabitEthernet 0/1 is in access mode and in vlan 10. 
This is my config:
access-list 1 permit host
class-map match-all ipclass1
match access-group 1


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Cisco Switching/Routing :: Dscp Marking In 2960S

Jul 21, 2012

i did on cisco 2960S switch at user ingress interface. but the marking is not showing in show policy-map interface gig 1/0/10 interface and ACL is not showing any match.
I also had a config reference from 2960S cisco guide.
access-list 103 permit tcp any any eq 80
access-list 104 permit tcp any any eq 23
access-list 105 permit icmp host any
class-map IN_HTTP
match access-group 103

class-map IN_TELNET
match access-group 104(code)

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Cisco :: Anyway To Implement Priority Marking On Voice Packets On IP Communcicator

Oct 9, 2011

anyway to implement priority marking on the voice packets on the IP communcicator which installed in a laptop (running Data VLAN in the switch)?

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Cisco Switching/Routing :: Nexus 7000 QoS Marking For Both DSCP And COS

Jan 29, 2012

I have a pair of Nexus 7K's running 5.1(3). I have a handful of edge devices that I need to mark ingress traffic, and need to mark both DSCP and CoS. Right now, I have a working config that marks DSCP appropriately.While that works dor DSCP, the MQC will not allow me to mark both DSCP and COS in the same class, and unlike IOS, it appears that Nexus does not have a default DSCP-to-COS mapping. My understanding is this can be solved using table maps, but I don't see how that can solve my problem in this specific scenario (it appears I can do marking or table-map mutation, but not both?). How I can accomplish both?

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Cisco WAN :: 3750G - Loss Of DSCP Marking When Routing Between VLANs

Jun 8, 2013

I have a 3750G switch running 12.2(44)SE6 my customer has some Cisco EX90 and ex-Tandberg VC units connected to the switch in a dedicated VLAN 600. The switch is then connected to the WAN router which has its own VLAN 6
From sh mls qos interface x/x/x statistics I can see that the traffic is marked by the VC units as DSCP 34 however when I run this command on the interface to the CE router the marking has been lost.
Similarly in the opposite direction incoming from the CE router I can see the marking coming from across the MPLS ok but when I check the output to the VC unit the marking has been lost.
This would indicate that in the process of routing between VLAN's the DSCP marking has been lost.
how to correct this issue. Because my interfaces are in different VLAN's do I need to VLAN based QoS?

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Cisco Switching/Routing :: 2960s / Marking The Traffic Between Two Hosts (Data Replication)

Feb 6, 2013

in switch 2960s ( c2960s-universalk9-mz.122-55.SE5 ) , i want to marking the traffic between two hosts (Data replication), i choose to use " mac access-list"  to classify my trafic before apply the policy marking . but did'nt work . c

!  my mac ACL
mac access-list extended test
permit host 000a.1a41.aa52 host 000a.1a41.1bc2
class-map match-all test
match access-group name test


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Cisco :: Which Route Will Router - C / Use To Forward Packet

Jul 30, 2012

The router receives a packet with a destination of which route will Router-C use to forward the packet? [code] The answer that the book give (Cisco's routing protocol and concepts) is: E however, and this is where i am confused, why isn't the answer A? This answer covers the left-most bit.

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Cisco :: Where To Download Router Template On Packet Tracer

Oct 20, 2011

Asking about Packet Tracer. I currently use packet tracer 5.3.2.Can you give me any link where to download router template on packet tracer? I want to explore cisco 2821 but packet tracer 5.3.2 has an existing of cisco 2811 only then, I tried to add the 4 ports of RJ11 but I cannot see the 4 port telphone.

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Cisco WAN :: ICMP Packet Can't Transit Between 7609 Router

Jul 11, 2012

We have two 7609 routers at different city . Our both 7609 routers make MTU 1800 bytes and when I ping the other router with  packet (1500 bytes) ,it can get thought .But when I ping with 15000 even 1506 bytes ,it didn.t work .As I didn't  disable the DF field .
Internet address is
MTU 1800 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 96/255, rxload 81/255


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Cisco :: HQ Router Can't Send Packet To ISP Router?

Apr 4, 2012

i'm currently doing task in this packet tracer, i've already completed 100% but i noticed that there are certain router cant send packet to the main router,i think the best way is to add default route, and i already add default route but it doesnt come out on the routing table,problem : HQ router cant send packet to ISP router?

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Encore Router - Packet Loss In The Connection

Apr 21, 2013

My problem is that i have a packet loss of like 2% to 6%, which is a lot considering that i play a lot of Online games, causing lag spikes and net frozes.I will say all the information i can about my pc.My PC hardware hasn't been modified, so the manufactor page ( ) tells what is installed in my pc.About software, i need to find if this problem is software-based, my AV is Microsoft Security Essentials and i use MalwareBytes too.About how im connected, im connected via Wireless to a router. (dunno model, i just know its a encore router)

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WRT54G2 Router - Packet Loss During Gaming?

Jul 1, 2011

I get 10Mbps download, and 1Mbps upload. I play on wire, not wireless!I have a WRT54G2 router, and I've had it working for around 2 years now. I've been gaming(Unreal Tournament 2004) with it and now-a-days I've been getting packet loss and it is super annoying. I keep getting owned during game play because I skip here and there and it lags sometimes. Also, the laptop upstairs that the family uses sometimes can't connect to the router, so I have to unplug then replug the router for the laptop to connect to the router. Is my router giving up? Its a G router, should I shift over to N anyways?

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Cisco Switching/Routing :: 887 Router - 50% Packet Loss On GRE Tunnel

May 22, 2013

We have a site were we have a 887 cisco hsiung a GRE tunnel
When pinging anything froom the tunnel source to the tunnel dest on the local lan we get a  50% packet loss
Protocol [ip]:
Target IP address:

replicated the setup exatly in our lab  and it works 100% with exactly the same config.

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Cisco Firewall :: Intermittent Packet Loss Between Router And ASA 5510

May 11, 2013

We have Cisco router 2800 router which is directly connected to ASA 5510, till now there was no issue every thing was working fine, but from past 2 day's we are facing a problem, when we try to ping to any outside public IP their is a intermittent packet loss & same issue to the remote office through IPSec tunnel, We are able to reach our ISP router from outside whithout any issue & there is no packet Loss, if we try to reach the ASA their is a intermittent packet loss.

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Can't Connect To Internet Through Router - Missing QoS Packet Adapter

Jan 2, 2011

I have a new PC with the Windows XP 64-bit OS. When I attempt to connect it to my home network, it doesn't see the network, and other computers can't see it. The network card driver is a 1394 Net Adapter. The driver appears to be working correctly, but it's not getting packets in or out. The setup seems to be missing the required Q0S Packet Adapter, but Windows won't let me install it.

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Linksys Wireless Router :: Packet Degradation With EA4500?

Dec 19, 2012

I am bridging my NetComm router to the Linksys EA4500 and it is giving me only 8MBps whereas the line speed is 14MBps. I have tried to connect directly to the netcomm by disabling the EA4500 and I am getting 14MBps. Any way to increase my speed?

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Linksys Wired Router :: BEFSR41 How To Use A Packet Sniffer

Feb 10, 2011

how to use a packet sniffer for a night school class, but lack a hub at home. I only have a BEFSR41 Cable/DSL Router with 4-port switch.Is there any safe way to use active sniffing methods? Would the "Mac Flooding" I've heard about work, or do I need to find some kind of ARP poisoning method?Unfortunately while I do recall using Etherpeek around 10 years ago, it was at a very basic level and I'm out of practice.Is there a way to make the switch act like a hub?

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Linksys Wireless Router :: E4200 V2 Packet Loss?

Jan 18, 2012

I seem to be having packet loss with the E4200V2 which is upgraded to the latest firmware as of today, 1/18/12
The application is accessing a security DVR which uses a RTSP / RTP stream.  Of course this requires certian ports to be forwarded in order for this to work.  This works flawlessly with a WRT310N or a Cisco 871 Router so I know the port forwarding is correct.
With the E4200V2 it works intermittently, I can replace EV4200V2 with either the Cisco 871 or the WRT310N and there are no issues.

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Cisco :: Ipv6 / Ipv4 Fragmented Packet - How To Prevent It In Router Part

Jan 1, 2013

i got trouble for this ipv4 & ipv6 fragment trafic prob/ do i prevent it from comming in to my network? is it way to prevent it in cisco router part?

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Linksys Wireless Router :: E2000 Packet Loss (cabled)?

Mar 9, 2011

A while ago I bought a WRT320N as a trade-in offer, unfortunately I had around 20% packet loss on my connection after I set it up. If running directly through my cable modem I had no connection issues at all.I was running the whole setup cabled, and have no peripherals using the wireless connection.The router was returned to the retailer for RMA, and in the end I got the purchase credited.My setup ISP: Dansk Kabel TV (danish provider for internet, TV etc.)Modem: Netgear CVD31T  DOCSIS 3.0 compliant Cablemodem (I do not have access to the modem, as it is provided by the ISP. I have now bought an E2000, and set it up in the same manner as the previous router.This has returned the same problems I had with my previous router.Updating the firmware didn't make any difference.Using as my test reference I get results like this.when connected directly to the modem I get 0% packet loss, max 20ms ping and jitter is 2-3ms.Have I been so unlucky to get 2 faulty routers in  a row, or could there be some problems with Linksys routers and Netgear?I have unsuccessfully tried switching cables without any change, tried moving the router "far" away from the modem, monitors etc to see if there could be any interference from the wireless.

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Cisco WAN :: Poor Performance / Packet Loss With 887VA Router On ADSL Line

Dec 6, 2012

We have a remote site connected to ADSL line with a Cisco 887VA router attached. This has been working fine for the last couple of months. However, recently, the site have started to complain of performance issues (network slow, applications disconnecting, etc)Looking on the router, we can see evidence of packet loss/timeouts from a simple ping to the internet e.g. [code]
However, we have logged the fault with our service provider and they return all line tests as clear but what is particularly strange is that they also report “and the SNR Margins are well within threshold levels (Upstream 11.5 and Downstream 15.0)” which, unless I’m misunderstanding something, seems to be completely different from what the router itself is reporting.Is there a reason why the service provider’s stats for Noise Margin would appear to be so different from what the router is reporting?

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Linksys Wireless Router :: E4200 - Why Huge Packet Loss At Gig But Not 100Mbps

Nov 20, 2011

Vista 64 Intel Pro 1000 with latest driver Here is a shot of the lagometer in COD Black Ops when all is good. I used to see this with my old WRT54GS and connected at 100Mbps Full Duplex or Half Duplex and I currently see this when connected through the E4200 at 100Mbps full or half duplex AND when connected via Gigabit via one of the 4 ports on the back of my cable modem, a Motorola SBG6580 [URL] This next screen capture is what happens when I try to connect via Gigabit thru the E4200. It either starts out like this right away or within 30 seconds to a minute this will start to occur. I believe the red spikes indicate packet loss. [URL]

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Linksys Wired Router :: RV082 Gateway Shows No Loss On Packet

Mar 25, 2011

I have RV082 in many locations and it is working fine.One location I just starting to have problem with packet lose (50 to 60 %)I ping between two location which i am having problem.Gateway to Gateway shows no lose on packet (reply with 20ms avg.)but router to router will lose packet 50 to 60 %.

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Linksys Wireless Router :: EA4500 - Automatic Packet Site Settings?

Nov 19, 2012

I am curious as what the packet size should be set . is the bigger size == lower speed smaller == faster or just leave automatic setting for packet size?

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Linksys Wireless Router :: Apple Bonjour Packet Support For WRT110

Jul 10, 2011

Can the WRT110 forward Bonjour packets?  I have one WRT110 running my home wifi network with firmware version 1.0.07.  I've spent hours trying to get my iPad to print to a wireless printer (HP D110a).  I can print and scan from several wireless PC's on the same network but cannot see the HP printer.  I started with the WEP 128-bit and then switched to WPA for a while but no luck so I switched back to WEP.  I've read that other's have had similar problems with this and other Linksys routers.
From the iPad point of view I have iOS version 4.3.3.  When I try to Airprint, for example through the Safari web browser, I see no printers available.  I've tried many apps all with the same problem.

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