# ACCESS                UPF tunmap                    UPF tunend (CORE)
#                       session 23 = tunmap           session 42 = encaps/decaps
# GTP 127.0.0.13        127.0.0.12                    127.0.0.11
# TEID l:23 r:123 <---> r:23 l:123 | l:142 r:42 <---> r:142 l:42 | 192.168.100.42
#
# Run two UPF, one listening on / sending from 127.0.0.11, the other on 127.0.0.12.
# (Each has to match on the sender address of incoming GTP packets.)

timer pfcp x23 0

pfcp-peer 127.0.0.11
 tx assoc-setup-req
 sleep 1
 session tunend 42
  ue ip 192.168.100.42
  gtp access local f-teid 127.0.0.11 42
  gtp access remote f-teid 127.0.0.12 142
  tx session-est-req
 sleep 1

pfcp-peer 127.0.0.12
 tx assoc-setup-req
 sleep 1
 session tunmap 23
  gtp core remote f-teid 127.0.0.11 42
  gtp core local f-teid 127.0.0.12 142
  gtp access local f-teid 127.0.0.12 123
  gtp access remote f-teid 127.0.0.13 23
  tx session-est-req
 sleep 1