./inet/networklayer/ipv4/Ipv4RoutingTable.h:259:50: error: unknown type name 'Ipv4Header'

[lakshmikrish-97]

I am trying to use the Ipv4Header file and functionalities but I keep getting this error, this is on INET4.2.1

Not sure why, this was named as IPv4Datagram in earlier versions - INET3.6, so has it probably been changed again? But I am not sure from the changlog

any help or direction would be greatly appreciated!!

Edit : I noticed, under inet/networklayer/ipv4 : we have Ipv4Header.msg and Ipv4Header.cc but no Ipv4Header.h
Any help/ guidance on how we need to modify Ipv4Header.msg to generate this?

[edlongman]

You need to include inet/networklayer/ipv4/Ipv4Header_m.h

the Ipv4Header.cc is just the implementation of some custom header functions defined in Ipv4Header.msg which is transformed into Ipv4Header_m.h (and Ipv4Header_m.cc

I hope that helps.

[lakshmikrish-97]

Ohh, thank you so much! This fixed that issue now, thanks so much once again