Is there any truth to this claim?
Specifically we're talking about a 2501 whose show version output appears below.
The eBay seller claims "I have always used tftp to push from the routers out not in the conf t mode because not all routers support being a tftp-server"
I think that's probably bs; when we're talking about a 2501 running IOS 12.3.
Cisco Internetwork Operating System Software
IOS (tm) 2500 Software (C2500-IS-L), Version 12.3(24), RELEASE SOFTWARE (fc4)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2007 by cisco Systems, Inc.
Compiled Thu 18-Oct-07 13:41 by stshen
Image text-base: 0x0307E1D8, data-base: 0x00001000
ROM: System Bootstrap, Version 11.0(10c), SOFTWARE
BOOTLDR: 3000 Bootstrap Software (IGS-BOOT-R), Version 11.0(10c), RELEASE SOFTW)
Router uptime is 1 hour, 31 minutes
System returned to ROM by power-on
System image file is "flash:c2500-is-l.123-24.bin"
cisco 2500 (68030) processor (revision N) with 14336K/2048K bytes of memory.
Processor board ID 06250764, with hardware revision 00000000
X.25 software, Version 3.0.0.
1 Ethernet/IEEE 802.3 interface(s)
2 Serial network interface(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read ONLY)
Configuration register is 0x2102