awneil
1
Reference: Open AT® IP Connectivity Development Guide, WIPlib v5.20
WM_DEV_OAT_UGD_075
006
October 21, 2009
This Guide outlines IP Routing Management - including the the wip_ipRouteAdd function - on p60, but no header file is mentioned.
This appears to be because there is no prototype in any header file! 
See also: See also: viewtopic.php?f=23&t=5413
awneil
2
The return values are inconsistent with the rest of WIP:
Other WIP functions return WIP_BERR_… or WIP_CERR_… codes;
wip_ipRoute… functions return WM_E… codes.
(actually, there seems to be a growing divergence of new ADL features from the established patterns)
SPI
3
I can find it in wip_net.h of WIP 5.41 beta.
s8 wip_ipFwdEntryAdd(wip_in_addr_t dest_ip, u16 dest_port,wip_in_addr_t gateway_ip, u16 gateway_port, u8 protocol );
s8 wip_ipFwEntryDel(wip_in_addr_t gateway_ip, u16 gateway_port, u8 protocol );
s8 wip_ipRouteAdd( wip_in_addr_t dest, wip_in_addr_t netmask, wip_in_addr_t gateway) ;
s8 wip_ipRouteDel( wip_in_addr_t dest) ;
awneil
4
But can you find it in anything earlier?
Note that it is mentioned in the User Guide for v5.20
Still no comments, then? 
See: https://forum.sierrawireless.com/t/build-errors-when-adding-wip-to-project/4806/4
SPI
5
Not in WIP 5.40. Haven’t check older versions.
Hopefully, next release.