#Cisco mac address showing up under asus router mod#
interface gigabitethernet slot/port or interface tengigabitethernet slot/port or interface port-channel type.Hence, though there is no restriction for configuringīoth the features on the same EVC, ideally these two features should be considered mutually exclusive.Ĭonfiguring IP Source Guard SUMMARY STEPS Only when both the features give permit action, traffic is permitted. When ACL gives permit action and IPSG gives deny action for the same traffic, packets get denied, and vice versa. So, either of the features deny the non-matching
So, when both of theseįeatures are enabled in the same EFP, both lookups are launched in parallel. PBR is not supported on BDI that is associated with the IPSG enabled interface.ĪCL on EFP and IPSG perform the same functionality, that is, to deny or permit traffic on the EFP. If PBR is not enabled in the node, IPSG can be scaled to 1000.Īs IPSG and PBR share the same region, for a particular interface, these features are mutually exclusive. If PBR and IPSG are enabled in a node at the same time, 1000 entries are shared by PBR and IPSG based on first come, first IPv4 and IPv6 packets that have IPv6 as first header is included under this restriction.ĭue to IPv4 tunnel TCAM region space limitation, only 1000 TCAM entries are supported. In this region impacts the scalability of other features. Since this a sharing model, any feature contributing more entries The IPSG entries are in IPv4 Tunnel TCAM region of ASIC. IPSG is supported only on video template. IPSG is not supported on routed interfaces, layer2 and layer3 VPN and VRF.
IPSG configuration is not supported on port-channels, trunk EFP, and on BDI interfaces. IPSG configuration works only if DHCP snooping binding is enabled. IP Source Guard (IPSG) configuration is supported only on interface level at 12 bridge domain interfaces.
Configuring IP Source Guard With Static IP.This filtering limits the ability of a host to attack the networkīy claiming the IP address of a neighbor host. Static IP source binding is configured by the administrator, the IP source guard feature automatically creates TCAM entries After a client receives an IP address from the DHCP server, or after Initially, all IP traffic on the bridge domain associated with the DHCP snooping in a particular interface is blocked exceptįor DHCP packets that are captured by DHCP snooping. The feature uses dynamic DHCP snooping and static IP source binding to match IP addresses to hosts on untrusted layer An IP source guard filters a source IP address on a layer 2 port and prevents malicious hosts from impersonating a legitimate