I need your help in designing the dual isp scenarios. There are 2 cisco routers installed as edge internet routers. Each router's WAN connected to defferent ISP.The gigabit 0/0 of both routers are connected in the common 172.20.21.0 network segment with hsrp VIP 172.20.21.1. The physical interface IP of those routers is 172.20.21.5, 172.20.21.6. The failover firewall outside interface connected to this same segment with IP of 172.20.21.3 and 172.20.21.4. The firewall default gateway is HSRP VIP of router 172.20.21.1.
Please help me how can we achieve the dual ISP load balancing using those 2 separate rouetrs. If one router fails another should take over as redundant router.
[toc:faq]The ProblemOn traditional switches whenever we have a trunk
interface we use the VLAN tag to demultiplex the VLANs. The switch needs
to determine which MAC Address table to look in for a forwarding
decision. To do this we require the switch to do...
[toc:faq]Introduction:Netdr is a tool available on a RSP720, Sup720 or
Sup32 that allows one to capture packets on the RP or SP inband. The
netdr command can be used to capture both Tx and Rx packets in the
software switching path. This is not a substitut...
IntroductionOSPF, being a link-state protocol, allows for every router
in the network to know of every link and OSPF speaker in the entire
network. From this picture each router independently runs the Shortest
Path First (SPF) algorithm to determine the b...