Hi, i need explanation of a resolved issue. I have a router that is connected to a firewall. Router interface ip is 126.96.36.199/28 and firewall connected interface ip is 192.168.100.16/28. Router was not able to ping firewall. On this direct cable connection. Later found router was learning 192.168.100.1/31 from its wan multilink interface from mpls cloud. Blocking this subnet from receiving on multilink resolve the issue ans .1 of router was able to ping .16 of firewall. My question is why so? When we ping .16 packet reaches .16 since it kearning .16 from directly connecred interface and when .16 firewall respond back, it sees .1 as connected unterface and shoukdnt generate arp request? And ask .1 router to tell him its mac and send packet on mac address? Why communication wasnt happening when router was learning .1 with /31 from multilink interface? Any explanation would be helpful thanx
[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...