Question about ISDN [7:18937]

Hi, I have two ISDN BRI S/T interface routers. Any methods connect them together like connect serial port together at home (for Lab Test)? Thanks! Lithium Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=18937&t=18937 -- FAQ, li

Upgrade IOS for router 2501 [7:18581]

Hi all, Router: 2501 IOS: 9,14(9) Flash: 4MB Ram:4MB Problem: Can't upgrade IOS to any version. (Try 10.3 - (igs-in-l.103-13.bin) - and it is fulfill the HW config). Show check-sum error. I would like to upgrade the IOS for 2501 router using tftp server which is directly connected to my tftp ser