But, only a particular IP within a subnet has this problem. All the remaining IP of the same subnet are working fine. Hence, the problem is quite specific to a particular IP in this day while the other particular IP in another day. There is no pattern we can conclude in this stage.
Sounds like the DHCP server is reusing an address before the router's arp cache has aged out. You can ping the gateway and that updates your gateway routers cache but the other vlan is using the other router that still has the mac of the last host that had that address. Next time it happens try pinging both routers with their real IP addresses (not the HSRP address) from the problem client. Then try pinging the other vlan. You could also try clear ARP cache on both routers.
If that fixes it try making your DHCP server hold used addresses longer or make the router age its arp entries faster (I dont know how to do either).
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.