diff --git a/ircc_v8930_vigenere/external/network.inc b/ircc_v8930_vigenere/external/network.inc
new file mode 100644
index 0000000..0c878af
--- /dev/null
+++ b/ircc_v8930_vigenere/external/network.inc
@@ -0,0 +1,125 @@
+; Socket types
+SOCK_STREAM     = 1
+SOCK_DGRAM      = 2
+SOCK_RAW        = 3
+
+; IP protocols
+IPPROTO_IP      = 0
+IPPROTO_ICMP    = 1
+IPPROTO_TCP     = 6
+IPPROTO_UDP     = 17
+IPPROTO_RAW     = 255
+
+; IP options
+IP_TTL          = 2
+
+; Address families
+AF_UNSPEC       = 0
+AF_LOCAL        = 1
+AF_INET4        = 2     ; IPv4
+AF_INET6        = 10    ; IPv6
+
+PF_UNSPEC       = AF_UNSPEC
+PF_LOCAL        = AF_LOCAL
+PF_INET4        = AF_INET4
+PF_INET6        = AF_INET6
+
+; Flags for addrinfo
+AI_PASSIVE      = 1
+AI_CANONNAME    = 2
+AI_NUMERICHOST  = 4
+AI_NUMERICSERV  = 8
+AI_ADDRCONFIG   = 0x400
+
+; internal definition
+AI_SUPPORTED    = 0x40F
+
+; for system function 76
+API_ETH         = 0 shl 16
+API_IPv4        = 1 shl 16
+API_ICMP        = 2 shl 16
+API_UDP         = 3 shl 16
+API_TCP         = 4 shl 16
+API_ARP         = 5 shl 16
+API_PPPOE       = 6 shl 16
+
+; Socket flags for user calls
+MSG_PEEK        = 0x02
+MSG_DONTWAIT    = 0x40
+
+; Socket levels
+SOL_SOCKET      = 0xffff
+
+; Socket options
+SO_BINDTODEVICE = 1 shl 9
+SO_NONBLOCK     = 1 shl 31
+
+struct sockaddr_in
+        sin_family      dw      ?       ; sa_family_t
+        sin_port        dw      ?       ; in_port_t
+        sin_addr        dd      ?       ; struct in_addr
+        sin_zero        rb      8       ; zero
+ends
+
+struct addrinfo
+        ai_flags        dd      ?       ; bitmask of AI_*
+        ai_family       dd      ?       ; PF_*
+        ai_socktype     dd      ?       ; SOCK_*
+        ai_protocol     dd      ?       ; 0 or IPPROTO_*
+        ai_addrlen      dd      ?       ; length of ai_addr
+        ai_canonname    dd      ?       ; char*
+        ai_addr         dd      ?       ; struct sockaddr*
+        ai_next         dd      ?       ; struct addrinfo*
+ends
+
+EAI_ADDRFAMILY  = 1
+EAI_AGAIN       = 2
+EAI_BADFLAGS    = 3
+EAI_FAIL        = 4
+EAI_FAMILY      = 5
+EAI_MEMORY      = 6
+EAI_NONAME      = 8
+EAI_SERVICE     = 9
+EAI_SOCKTYPE    = 10
+EAI_BADHINTS    = 12
+EAI_PROTOCOL    = 13
+EAI_OVERFLOW    = 14
+
+socket          fix 75, 0
+close           fix 75, 1
+bind            fix 75, 2
+listen          fix 75, 3
+connect         fix 75, 4
+accept          fix 75, 5
+send            fix 75, 6
+recv            fix 75, 7
+setsockopt      fix 75, 8
+getsockopt      fix 75, 9
+socketpair      fix 75, 10
+
+
+struct  ARP_entry
+        IP      dd ?
+        MAC     dp ?
+        status  dw ?
+        TTL     dw ?
+ends
+
+
+; Socket error codes
+; Error Codes
+ENOBUFS                 = 1
+EINPROGRESS             = 2
+EOPNOTSUPP              = 4
+EWOULDBLOCK             = 6
+ENOTCONN                = 9
+EALREADY                = 10
+EINVAL                  = 11
+EMSGSIZE                = 12
+ENOMEM                  = 18
+EADDRINUSE              = 20
+ECONNREFUSED            = 61
+ECONNRESET              = 52
+EISCONN                 = 56
+ETIMEDOUT               = 60
+ECONNABORTED            = 53
\ No newline at end of file