Hi, We have a problem with one of our offices in the remote side. It appears to me a congestion issue. We installed phones over there along with Cisco router (Cisco 887) and they are registered on cloud PBX. Our ISP gave 100 Mb  ADSL link (Dialer interface). The same link is used for Data traffic as well. In peak times they have complained for poor call quality. Now I have to deploy some QoS on outgoing interface that data should not impact calls. What I did is mark the traffic with IP address of PBX and allocate it the 75% bandwidth (On Demand basis). My configurations details are mentioned below. I tested it and it doesnt seems to be worked. In-fact data traffic is also disturbed, can any one help in that ? # access-list 100 permit ip any host 101.43.31.291 access-list 100 permit ip host 101.43.31.291 any # class-map match-any VOIP match access-group 100 # policy-map voice-policy class VOIP priority 200 class class-default fair-queue # interface dialer 0 service-policy output voice-policy ... View more

We have project going on. Please refer to the diagram (Dummy Topology) below. We have a customer to whom we are providing internet connection. Currently we are providing the internet through provider A (Primary Path) and through Provider B (Backup Path) as mentioned in the attached topology. Provider A is directly connected with customer router, however provider B is connected with our router (Router-X) and our router is further connected with CPE (Customer Premises Equipment). CPE has two default routes with preferences so its Ok for CPE to switchover easily. Now Site # 2 is now going to be integrated. Customer asked us that traffic from Site # 2 should also pass from the primary link (As primary link is 1G capacity and the links to MPLS provider is also 1G each). Backup path is only 250 Mb. For ALL the traffic to pass through the "Provider A" the "Provider B" has to add the default route in his MPLS network for site # 2 to send all the traffic to Our-Router (Router-X). On Router-X we need to send two default routes (Primary and Backup Path) while tracking the main interface with IP SLA (1.1.1.1) with primary default routes and keeping the preference low for the backup default route. But in this case the MPLS Provider (Provider B) would also have the default route towards us and there will be routing loop in the network in case if the primary path fails as the default route from "Provider B" will send the traffic to our Router-X due to default route for Site # 2 and our router will send the traffic back towards provider B. Our MPLS Provider (Provider B) asked us to make the BGP connection with and ask us to send them the default route through BGP redistribution (Because they don't have any mean of tracking). On my side I need two default routes in any case because one default route is pointing towards the Provider A (Primary Path) and the other default route is pointing towards the provider B (Backup Path). If I send the default route through BGP-redistribution and track that primary static route with IP-SLA to 1.1.1.1 then it will still create the problem because the default route will still remain there in my router as if the primary link down (As secondary default route will take over the route will still remain in the routing table). Now this is the problem we are currently facing. Can any one suggest something to help us. This is a kind of case study for us. But if any one can help us out in this case. ... View more

Hi,   We have a customer who has three sites. We are required to install three routers over there. Our upstream provider is new and he insists that he cannot give public IP for all the three sites. Instead he can do the port forwarding.  Previously we were using L2TP over IPSec to access the in house services. Now since public IP is not available, what is the best VPN option in this scenario for all of our cisco routers. Can any please help. Please keep the things simple for me. Thanks  ... View more

Hi,   We are using HSRP with our Cisco 881 routers connected with single switch as per topology attached. A strange thing happened today. A sudden packet loss appears in the network. I login to the primary router. I pinged all the devices and Internet from primary router and it was OK. I did the same practice with secondary one and every thing was OK. But there is one thing I noticed. I didnt see PC mac-addresses in the mac-address table (Show mac-address) but the entries for the PCs exist in the ARP table and they can be ping. Even when I ping the cam table didnt update. "Show standby" also shows the right information. I shut down the secondary link and then CAM table of the primary started filling up and packet loss disappeared. Can any one help me to figure out what could possibly cause this and what is required to check in such conditions.    Best Regards. ... View more

Hi,   I am looking to implement ip-sla with HSRP. My requirement is to trigger the fail-over if at-least three packets are lost. For example if the track IP configured is 8.8.8.8 then the threshold should be triggered only if at-least three packets are lost towards 8.8.8.8. I am trying to figure out the way but couldn't find any option. I am using C860-UNIVERSALK9-M. Can any one help me   ... View more