laforge has submitted this change. ( https://gerrit.osmocom.org/c/osmo-upf/+/35666?usp=email )
Change subject: manual: 'Running': tweak, mention 'tunmap' and 'tunend' ......................................................................
manual: 'Running': tweak, mention 'tunmap' and 'tunend'
Change-Id: I9760ca214933d0b05080a3e70807b0cd06380a27 --- M doc/manuals/chapters/running.adoc 1 file changed, 18 insertions(+), 5 deletions(-)
Approvals: laforge: Looks good to me, approved; Verified
diff --git a/doc/manuals/chapters/running.adoc b/doc/manuals/chapters/running.adoc index 683c444..009ec16 100644 --- a/doc/manuals/chapters/running.adoc +++ b/doc/manuals/chapters/running.adoc @@ -85,11 +85,11 @@
OsmoUPF uses two distinct Linux kernel features:
-* The GTP module is used for GTP encapsulation/decapsulation from/to +* The GTP module is used for `tunend`: GTP encapsulation/decapsulation from/to "the internet".
-* The netfilter module is used for GTP tunnel proxying, also known as - tunnel forwarding or tunnel mapping. +* The netfilter framework and nftables is used for `tunmap`: GTP tunnel proxying, + also known as tunnel forwarding or tunnel mapping.
.Linux kernel feature usage [graphviz] @@ -97,8 +97,12 @@ include::upf_gtp_roles.dot[] ----
-GTP kernel module configuration can be omitted for sites that serve only as GTP -forwarding proxy, without encapsulation/decapsulation of GTP payloads. +GTP kernel module configuration in the `tunend` section can be omitted for sites +that serve only as GTP forwarding proxy, without encapsulation/decapsulation of +GTP payloads. + +Likewise, netfilter configuration in the `tunmap` section can be omitted for +sites only serving as GTP tunnel endpoint.
[[gtp_module]] === Configure Linux Kernel GTP Module for `tunend`