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I think from the perspective of SVI you have to apply the access list OUT. OUT means that the traffic will be process by the access list after is get routed or exiting the interface in other words packets origin from the outside GOING OUT to your LAN...
If you are just practicing you are the one who has to set the clockrate , you will do something like:interface serial 0/0.clockrate 128000.And by the default the encapsulation on cisco routers is HDLC but if you bought the routers with a previous con...
If you remember ICMP process after you send a ping it has to come back with a reply originating from the other host. So you should be able to ping from the router as well.