Hello JainAll most all routers allow you to configure more than one IP address and they route between different IP (sub)networks.If this is not what you meant to ask, request a bit more clarity on the question.

You may request your ISP to give you a /30 for the WAN ethernet link than a /28.And regarding the additional /28 which you have recieved, it shouldnt be difficult,have you tried assigning one IP from it as a secondary address to FE1.

HelloYou are getting IP address in the 169.254.0.0/16 range because there is no DHCP server in VLAN 51 nor the DHCP requests are forwarded to any other DHCP server.for the hosts in VLAN 51 to get an IP address via DHCP you need to have 1) a DHCP serv...

SW1 and SW2 may be connected back-to-back using access ports in VLan 450 ( rather than using a Trunk)

you can have them connected via straight/cross cable ( Ethernet MDI/MDIX Auto Cross feature), and configure the Virtual machine interface to be bridged with the Physical interface.If you are using NAT mode, then add a staic route for the virtual netw...