I have an issue within my Test network. I am having issues with Games consoles playing and then having network drop outs where there is no internet connectivity for 5 mins all longer. Then the connectivity reumes itself after a while. I have a 300mb pipe which seems a suitable amount of bandwidth.
I am diasy chaining a net gear switch in to a port that is a 1 GB port. I cant see no logs on the swiitch at the time of actionb and I have no port security.
However I do see logs regarding DHCP Snooping
%DHCP_SNOOPING-5-DHCP_SNOOPING_MATCH_MAC_FAIL: DHCP_SNOOPING drop message because the chaddr doesn't match source mac, message type: DHCPREQUEST, chaddr: f8d0.ac9c.7cef, MAC sa: f8d0.ac9c.7cee
I am constantly plugging in and moving devices.
Could this be the DHCP ?
Removing DHCP snooping ? apart from reducing security. Could this impair the environment ?
The issue I have got is testers with multiple devices connected to the netgear which is the plugged into a cisco 4510 switch which has snopping enabled. Im thinking even if I remove the VLAN that these test devices are using from the snooping config. I am not leaving the whole network exposed.
So the multiple NICs in the netgear could be causing an issue with the snooping ?
“When a switch receives a packet on an untrusted interface and the interface belongs to a VLAN in which DHCP snooping is enabled, the switch compares the source MAC address and the DHCP client hardware address. If the addresses match (the default), the switch forwards the packet. If the addresses do not match, the switch drops the packet.”
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.