I use print (CEthPacket*) 0xeb609a0 to examine an object at the given address and get A syntax error in expression, near \') 0xeb609a0\'.
print (CEthPacket*) 0xeb609a0
A syntax error in expression, near \') 0xeb609a0\'.
W
You didn't say on which platform, which version of GDB, or what CEthPacket is.
CEthPacket
My first guess is that you should try print (struct CEthPacket *) 0xeb609a0 instead.
print (struct CEthPacket *) 0xeb609a0