![]() Vlan1 (vLan0) is the default one, which includes the LAN ethernet ports. So at this point in the narrative, we have five physical ports mapped to two vLans, both of which connect to the routing system on port 8 (port 5). In DD-WRT's default case, this is vLan1 (vLan0). Further, you can declare that one of the vLans be the "default": when a packet flows through the router that is otherwise missing vLan tag information, it will behave as if it were a packet on the default vLan. In a DD-WRT device, you make this possible by assuring that any vLan that you've defined has port 8 (port 5) as one of its member ports, thus tying the vLan to the router via trunking (note that by extension you can completely isolate a network by not including port 8 (port 5)). In order for it to be possible to move traffic outside the domain of any vLan, it is necessary for traffic to be manipulated by routing and filtering logic. Vlan2 (vLan1) is the one on which the WAN socket resides. Vlan1 (vLan0) is the one on which all of the numbered (1-4) RJ45 sockets on the back belong to. Within the switch entity there are defined two VLANs - vlan1 and vlan2 (vlan0 and vlan1). Do a nvram show | grep vlan.*ports to find out which one your model uses. Some N-and-newer models continue to use port 5 instead of 8. The internal port that connects to the router is usually port number 8 (port 5). To show the difference between the newer and older, the older is enclosed in italic parenthesis. Older devices (B/G) have a different vLAN and port numbering scheme. vLan assignments and port numbering describedĬurrent routers, typically N or AC, K3.x. Do the command: nvram show | grep vlan.*ports to find out which one your model uses. The mapping of port numbers to physically exposed external sockets varies according to model. One is the WAN RJ45 socket (0), four are the RJ45 sockets (numbered 1-4), and one is an electrically hardwired vlan trunk interface (8 '(5)') that connects the switch to the internal router. The internal network switch device has 6 ports. The internal device mappings in a B/G (pre-N) device - specifically the default configuration of a DD-WRT V23-SP2 firmware on a Linksys WRT54G v2.īy way of a narrative, the default configuration works like this (parenthesis are pre-N hardware):
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