#!/bin/sh
# ifupdown hook: ana-ml2 mesh RETURN routes via ana-scale (10.250.50.45), on the VLAN-50 NIC.
# Why: ana-ml2 has two DHCP defaults on two NICs; mesh traffic arrives on enp97s0f0np0.50 from
# ana-scale and the reply would otherwise leave via the other NIC's default -> dropped at the
# edge (off-site ssh to ana-ml2 timed out until 2026-09-08). Same-L2 next hop keeps both
# directions on the VLAN-50 NIC. Managed from eshpfi-management playbooks/ana-ml2-mesh-routes.yaml.
[ "$IFACE" = "enp97s0f0np0.50" ] || exit 0
for n in 10.100.0.0/16 10.0.0.0/16 10.6.110.0/24 100.64.0.0/10; do
    ip route replace "$n" via 10.250.50.45 dev enp97s0f0np0.50
done
exit 0