File list (Check if you may need any files):
lwip-1.3.2
..........\CHANGELOG
..........\COPYING
..........\doc
..........\...\contrib.txt
..........\...\FILES
..........\...\rawapi.txt
..........\...\savannah.txt
..........\...\snmp_agent.txt
..........\...\sys_arch.txt
..........\FILES
..........\lwip-1.3.2.IAB
..........\lwip-1.3.2.IAD
..........\lwip-1.3.2.IMB
..........\lwip-1.3.2.IMD
..........\lwip-1.3.2.PFI
..........\lwip-1.3.2.PO
..........\lwip-1.3.2.PR
..........\lwip-1.3.2.PRI
..........\lwip-1.3.2.PS
..........\lwip-1.3.2.SearchResults
..........\lwip-1.3.2.WK3
..........\README
..........\src
..........\...\api
..........\...\...\api_lib.c
..........\...\...\api_msg.c
..........\...\...\err.c
..........\...\...\netbuf.c
..........\...\...\netdb.c
..........\...\...\netifapi.c
..........\...\...\sockets.c
..........\...\...\tcpip.c
..........\...\core
..........\...\....\dhcp.c
..........\...\....\dns.c
..........\...\....\init.c
..........\...\....\ipv4
..........\...\....\....\autoip.c
..........\...\....\....\icmp.c
..........\...\....\....\igmp.c
..........\...\....\....\inet.c
..........\...\....\....\inet_chksum.c
..........\...\....\....\ip.c
..........\...\....\....\ip_addr.c
..........\...\....\....\ip_frag.c
..........\...\....\ipv6
..........\...\....\....\icmp6.c
..........\...\....\....\inet6.c
..........\...\....\....\ip6.c
..........\...\....\....\ip6_addr.c
..........\...\....\....\README
..........\...\....\mem.c
..........\...\....\memp.c
..........\...\....\netif.c
..........\...\....\pbuf.c
..........\...\....\raw.c
..........\...\....\snmp
..........\...\....\....\asn1_dec.c
..........\...\....\....\asn1_enc.c
..........\...\....\....\mib2.c
..........\...\....\....\mib_structs.c
..........\...\....\....\msg_in.c
..........\...\....\....\msg_out.c
..........\...\....\stats.c
..........\...\....\sys.c
..........\...\....\tcp.c
..........\...\....\tcp_in.c
..........\...\....\tcp_out.c
..........\...\....\udp.c
..........\...\FILES
..........\...\include
..........\...\.......\ipv4
..........\...\.......\....\lwip
..........\...\.......\....\....\autoip.h
..........\...\.......\....\....\icmp.h
..........\...\.......\....\....\igmp.h
..........\...\.......\....\....\inet.h
..........\...\.......\....\....\inet_chksum.h
..........\...\.......\....\....\ip.h
..........\...\.......\....\....\ip_addr.h
..........\...\.......\....\....\ip_frag.h
..........\...\.......\ipv6
..........\...\.......\....\lwip
..........\...\.......\....\....\icmp.h
..........\...\.......\....\....\inet.h
..........\...\.......\....\....\ip.h
..........\...\.......\....\....\ip_addr.h
..........\...\.......\lwip
..........\...\.......\....\api.h
..........\...\.......\....\api_msg.h
..........\...\.......\....\arch.h
..........\...\.......\....\debug.h
..........\...\.......\....\def.h
..........\...\.......\....\dhcp.h
..........\...\.......\....\dns.h
..........\...\.......\....\err.h
..........\...\.......\....\init.h
..........\...\.......\....\mem.h
..........\...\.......\....\memp.h