Netgear FS726T VLANS

I am configuring three VLANS in Netgear FS726T layer 2 switch,which connects to a cisco 800 series router for inter-vlan comm..the router has been configured, just wondering how to configure trunk port in switch to connect it to a router trunk port...PS:three vlans are,,,port 2& port3 resp.).....the router trunk port fa0/0  has been configured with sub-interfaces..Could anyone assist?Thanks
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please take a look here:
page B-2 - in appendix about 802.1q vlans with examples

in few words: you have to configure port 4 as a tagged member of all your 3 vlans.
stevebungayAuthor Commented:
I made port 4 as tagged member of 3 VLANS but still it didnot work.No intervlan communication.Any other suggestion plz
have you configured your cisco properly?
it should also have multiple sub interfaces configured for particular port
stevebungayAuthor Commented:
Yes ,one of the router port had  been configured as trunk port with subinterfaces.This trunk port was connected to the switch trunk port.
VLAN connected devices can ping upto Router ...Router pings Switch ...but switch doesnot perform intervlan comm. somehow??

switch will never do that, because it is a L2 switch, you need( and you have already) router to do the job. allow intervlan routing on your router

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