I am seting up my own lab here.
I have 2 1721 rouers and 1 2620XM rourtes to upgtade to the new ios to support 12.4 IOS all the features needed for the practice.
1721 router with 64 MB RAM, 32 flash
ios running: k9sy2-122-13
What are the items needed for 1721 to upgrade the IOS to the latest one
What is cross-platfrom option in 1721 router?
I have one with out memory modules.
Inside router there are 2 memory slots are located. One in left down side with 2 memory slots near to each other,
another in center down edge with only one slot.
Give me how can i go for the 128 MB upgrade to install the Latest IOS for the LAB.