Does RHEL support FOU aka Foo-over-UDP tunnels?
Issue
- Does RHEL support FOU aka Foo-over-UDP tunnels?
- We are trying to load
fou
andfou6
loadable kernel modules but cannot:
# modprobe fou
modprobe: FATAL: Module fou not found in directory /lib/modules/...x86_64
# modprobe fou6
modprobe: FATAL: Module fou6 not found in directory /lib/modules/...x86_64
# modinfo fou
modinfo: ERROR: Module fou not found.
# modinfo fou6
modinfo: ERROR: Module fou6 not found.
- Juniper Cloud Native Router (CNR) documentation specifies FOU as a requirement:
Additional kernel modules need to be loaded on the host before deploying Cloud-Native Router in L3 mode.
cat /etc/modules-load.d/crpd.conf
tun
fou
fou6
ipip
ip_tunnel
ip6_tunnel
mpls_gso
mpls_router
mpls_iptunnel
vrf
vxlan
Enable kernel-based forwarding on the Linux host.
ip fou add port 6635 ipproto 137
Environment
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 9
- Red Hat Enterprise Linux 8
- FOU or FOU6 (Foo-over-UDP protocol)
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