Cisco WAN :: Implementation Of Short Sequence Number Format Support In PPP Multilink Header For MWR 2941
Jun 11, 2012
One of my customer has raised a new requirement for implementation of short sequence number format support in PPP multilink header for Cisco MWR 2941 E1/T1 serial interface, whereas router is supporting long sequence number format.here is the output of "debug ppp negotiation" command:-Currently in the MWR debugging logs we can see that by default MWR is sending long sequence header format as below
I am using the 26 character WEP code. Was wondering if it's possible to setup a short password or PIN number. Been troubleshooting problems with a wireless blue ray player that has required multiple resets. Entering the wep code with the remote is hard!
I am using a CISCO 2941 DC-A router,For the PPP testing.I was using GL card from the GL communications.In the case of GL card it supports this below Feature"In MLPPP Simulation, NCP can be configured to send Packets over PPP links in the bundle or on the MLPPP bundle."My query Is in the Cisco Router 2941-DC-A,Is their support for sending NCP over PPP in the case of Multilink(MLPPP).Because I found out that in the case of MLPPP the Cisco router sends NCP packets over MLPPP only. How to configure the cisco router to send NCP packets over PPP in case of MLPPP.?
I have a faulty ASA5520 and I am not sure if I have a SMART net contract for it or not (I manage over 200+ ASAs). The problem is that the Serial Number sticker that is normally on the back of the ASA is missing. The ASA5520 is also faulty and doesn't power on so I cannot boot it up and run 'show ver' or similar. If I open the chassis there appears to be other Serial numbers on the Power Supply, and Motherboard etc but they do not seem to be the correct Chassis serial number i.e not in the right format, and if I put them into the Trade tool I get no results.
There must be another record of the serial numbers besides 1x sticker to the rear of the chassis that can fall off? How I can get the chassis serial when the device isn't booting. or (Cisco) is there a way to find the chassis serial number from the power or motherboard serial?
I have a 3750 running 12.2(55) and when I configure BGP I only get the standard AS number choice of 1-65535, but my provider is supplying a 4-byte AS number which is six digits and it gets rejected at the prompt on the 3750. Does that mean no support on 3750
my company just ordered fornew LMS release and exactly needed the support to open TAC's .I searched but couldn't find the part number for this,some one send me this part number CON-PSUS-LMS410K9,I searched but I could not find anything usefull.
I have two MWR 2941's in a lab environment awaiting deployment in a SAToP environment. They are both running the latest IOS, mwr2941-adviprank9-mz.151-1.MR3.bin. After being up for about 4 days they both stop responding to telnet attempts. I do not get a reject message - it just goes to a blank secreen with a flashing cursor. The only way to fix it is to reboot. I read that an older IOS had a similar bug on the MWR1941 but I cannot find anything about the 2941 having issues such as this.
We got a new CISCO 2941 MWR router shipped with the “mwr2941-adviprank9-mz.122-33.MRA.bin” image .I am not able to configure the Ethernet service OAM(CFM) . We need to configure a outward domain and outward MEP.The system is not allowing me to configure a outward MEP. There seems to be no option to configure an outward MEP. I am successfully able to configure inward domain and inward MEP but this does not fit in our setup as we want CCM to be send outwards .
I have two Cisco 2941's going over a IPSEC VPN. I need to push the same network over this connection. For example i need 192.168.255.0 / 25 on my side and i need to plug in a laptop on the far end 2941 with the same network. I have built GRE tunnels before and i found a configuration online to brdige interfaces over a GRE tunnel.
when i get to adding the bridging to the configuration which i will show below i get an error. Please see below. Also when i try to add the same briding command on the GRE tunnel which is needed it doesnt show the bridging command as being available. The Cisco 2941's are both using version: mwr 2941-iprank9-mz.124-20.MRb1.bin.As i stated the only end result i need is to be able to configure a path from point A and B and have the same network on each end.
I managed to narrow down my question to this.SOCKS5 proxy is able to handle both TCP and UDP transport protocols.If I have IPinIP encapsulated tunnel, will this work? in other words, does SOCKS5 expect Layer 4 header immediately after Layer 3 header or not?
I have an ACE version A5.2 configured in one-armed leg (doing source nat). I have a requirement to add(or copy) the "referer" header value from the original request to the request send by ACE.
I cannot figure out how to copy this value. It is easy to add the source ip address by adding: " insert-http x-forwarded-for header-value "%is".
So how I am going to copy the Refere header?
#Referer #Address (URI) of the resource from which the URI in the request was obtained
I created several rules to balance on a specific server somes apps. Everythings works great in http but no in https.In my example, i would like [URL] to be redirected to my server2 but it's always using the default rules instead of the L7CLASSSrv2. Today [URL] is well redirected. All other apps are correctly loadbalance with the stickyness effect but I can't handle the https connections.
class-map match-all L4-WEB-IP 2 match virtual-address xxxx tcp eq www class-map match-all L4-WEBHTTPS-IP 2 match virtual-address xxxx tcp eq https class-map type http loadbalance match-any L7CLASSSrv1
We are using Cisco ACE 4710 to load balance servers. We have created VIP under the interface vlan using nat-pool command. Also, we have changed the gateway of the server to point to the ACE vlan ip address which is created using alias 10.x.x.x 255.x.x.x command under the interface vlan. In short ACE is in inline mode for the servers which needs to be load balanced.
[code]...
But still I am not able to view the original client IP. Just to add more, the site is a HTTPS site & we have not doing any kind of SSL offloading on the ACE, it is taken care by server itself
I just want to do the HTTP & HTTPS load balancing without SSL offloading & should be able to see the original client IP in the server logs
Is there a way to convert TCP options header into an http header using Cisco ACE ? is there an equivalent solution with Cisco as the one proposed by F5 here: url.
We have an ASA Version 8.0(5)19 as our firewall.We are trying an cloud service on the internet and found that the ASA is removing the X-Forwarded-For on the header on the surf traffic.Is it possible to not remove the X-Forwarded-For in ASA?
I have a Cisco 1841,c1841-ipbase-mz.124-20.T4.bin, with 2x HWIC-1ADSL-M.I have managed to bond 2x DSL with PPP multlink with the config below and traffic is being sent equally across both DSL circuits. However if i disconnect either of the DSL cables connectivity fails. I was expecting connectivity to continue to work just over the one circuit. [code]
I think I have my PPP multilink setup correctly. Though I am getting AL lights on one of my connections via a VWIC2-2MFT-T1/E1 card. One AL light is on at each location. Though I checked with my ISP and they said it was my network cables as everything looked good on their end. Currently one T1 circuit is connected at each end so users do not see a disruption. This is a new install with two routers and the config is shown below.
I have some tunnels which terminate to my home router. I'm allowing the other ends of the tunnels to use my voice setup. I need to prepend *67 to all called numbers which don't originate from my house. I don't want people calling my home number based on the caller-id number they see when someone across one of the tunnels calls.
So if 5008 calls 212-333-4444 I want it sent to my provider as *672123334444. If 5001 calls a number, I don't want it touched. Can I do this? I can use IOS or CUCM here.
We are migrating from ACE 20 module to an ACE 4710 appliance. [code] When pasting in the config on the ACE 4710 running A4(2.1) code, I get the subject error message when trying to enter in the highlighted sticky-serverfarm command above. Again, this config works on the older hardware and older code.
I've no experience in VoIP and been ditched with looking at an IP trunking problem on our network.The users where getting dead lines or silent calls, but it seems after re-seating IP trunking card here and there around the network a few times, all is settled to normal. Unfortunately it's a third party that look after the majority of the telephony, and as they can't figure out why this happens they often say it must be a problem with the data WAN it traverses.So I started trying to figure something out, I have IPSLA monitoring setup in Solarwinds on most of the routers and all looks well from that aspect; MOS is 4.34 and Jitter is only 1ms at worst. I've taken a wireshark packet capture of the IP trunk by mirroring the port on the switch at a main site where I've been told a lot of calls are routed through. Inside wireshark I used the 'telephony> voip calls' tool and decoded all the calls. The output is showing most calls have 'Out of Seq' and 'Wrong Timestamp' at around 25-50%. Although these calls seem fine otherwise, and I took this capture whilst the fault was not occurring. I know I need to capture next time when the fault is occurring, but this is what I have for now.How can i fix this or even start to troubleshoot further?
p.s- each site has two routers running GLBP to the WAN, over two ISP locations. I read something about having consistent routing to avoid packets arriving out of sequence, but haven't found anything yet to say this is how I can/should do that.
I seem to get worse range on the DIR-655 than I did on the DIR-615. I was able to walk out to the parking lot with 1 bar of signal on my phone with the DIR-615. I can get about half way there before I have no signal now that I've got the DIR-655. Are there some settings to disable that might be playing a role in this? I've got the router configured for wireless N only, could that have something to do with it?
I have a Cisco 2821 with two serial interfaces bundled using PPP multilink. I want to monitor traffic flow (net flow) on the multilink interface. I have tried configuring ip route-cache flow/ ip flow ingress / egress but no luck.The other thing is when I do sh ip cache flow I guess I should see the multilink interface in both Source and destination columns which is not happening (not showing in destination column).The other router with same config but with ATM sub-interface working properly (same IOS). Are there any hits on this ? Also, is it possible to use SPAN feature ? The monitoring server is at some other site (coming via WAN).
I have two Cisco Routers 3800 series for my internet traffic (2 ISP). I configure HSRP on the interfaces gigabitethernet and at the main router I put the multilink interface to track. When the connection drops to the main router traffic does not switch on my second router.
Customer site connected to a PE using 2 x E1 circuits aggregated using Multilink PPP. The CE is a 1760, and the PE is a 7206. This is the customer HQ site.
Connected to the same PE are three other sites from the same customer. Each is connected with a single E1, again each CE is a 1760.
During some testing the customer did some large file transfers concurrently from each of the three remote sites into the HQ, so we had data coming into the PE via the three E1's (6Mbps) and then being routed onto the 4 Mbps Multilink PPP interface into the HQ, which is a potential bottleneck. This test failed miserably with packets being dropped on the output interface on the PE facing the HQ.
But then if Multilink PPP encap is removed, and we just connect the HQ using one E1 with HDLC encapsulation, the test works, even though we have half the bandwidth to the HQ, so an even greater potential bottleneck.
I am looking for any other compression methods I can use for my PPP multilink connection. The PPP multilink compression is composed of two T1 lines. There are no slip sec errors or packet errors that I saw recently. R1 is a 1911 and R2 is a 2911.
I have a question regarding mlppp and bonding mpls T1 circuits. For the longest time we have been able to get by on one T1 circuit coming into our 3845 router. Well this T1 has now become congested and they are wanting to add bandwidth to this T1. We connect to the phone company via an MPLS T1 currently. So now it appears as though we are going to purchase another MPLS T1 circuit and bond the two T1's together. The way our network is currently set up, we utilize the same AS number on all of our remote routers regardless of location. Keep in mind I don't have any sort of mlppp set up at this moment, so unfortunately I can't post any configs. I'm just questioning the design portion and how to go about doing this.
Here is where my dilemma begins........
For every MPLS circuit we order on the remote end, we specifiy an IP for the remote router itself and one for the provider to assign to their equipment (the bgp neighbor statements). Now granted i'm no BGP extraordinaire, not even a novice really, but I don't understand how I am going to bring two T1 circuits into the same router (basically with 2 pairs of IP's). In order to bond the two T1's together, i'll need to create a multilink interface and assign an IP to that, but yet I still have 2 SETS of ip addresses. And if that isn't enough of a dilemma, I also need to spedify a neighbor statement in order for my AS to bind to the adjacent provider AS, but yet I have two IP addresses for that as well.
MPLS customer with 4 T1s in a multilink. If one of the T1s drops there is a brief delay in traffic picking back up and I actually lose packets from premise back to CO. You can see this loss both with pinging across the circuit and with techs on either end running JPerf. It can take as long as 6 seconds for the reconvergence to actually happen on the multilink and traffic picks back up. In my experience this is normal behavior for Mulitlinks
I'd also like to note that it is indeed much quicker reconvergence when you physically pull the T1, any of the T1s, rather than administratively shutting down one of them and I understand that the hardware is quicker than software and that's a good thing, obviously. I've tried this with and without ppp mulitlink fragment disabled on either end and every other combo between the two. Each of the 4 serial interfaces are on line timing and I tried free-running just on the off chance that it could imrpove the loss, but it gets worse.....back to line timing. I've even tried this on other CPE platforms like two different versions of Adtran CPEs and I get the same thing. Currently I have a new 2821 CPE in place and still get the same thing. Still see a brief amount of traffic loss up to 6-7 seconds or so at times.
7600 side:
interface Multilink592 ip vrf forwarding ****************** ip address ************************* load-interval 30 no peer neighbor-route ppp multilink ppp multilink group 592 ppp multilink fragment disable no cdp enable service-policy output VPN-TEMPLATE-2(code)
