if len(config.get('interface', [])) < 2 or len(config.get('interface', [])) > 2:
           raise ConfigError('Only two interfaces are required for udp broadcast relay "{instance}"')

root@vyos:~# sysctl -a | grep send_redirect
net.ipv4.conf.all.send_redirects = 1
net.ipv4.conf.default.send_redirects = 0
net.ipv4.conf.eth0.send_redirects = 0
net.ipv4.conf.eth1.send_redirects = 0
net.ipv4.conf.eth2.send_redirects = 0
net.ipv4.conf.eth3.send_redirects = 0
net.ipv4.conf.lo.send_redirects = 0
net.ipv4.conf.wg0.send_redirects = 0

root@vyos:~# sysctl -a | grep send_redirect
net.ipv4.conf.all.send_redirects = 0
net.ipv4.conf.default.send_redirects = 0
net.ipv4.conf.eth0.send_redirects = 0
net.ipv4.conf.eth1.send_redirects = 0
net.ipv4.conf.eth2.send_redirects = 0
net.ipv4.conf.eth3.send_redirects = 0
net.ipv4.conf.lo.send_redirects = 1
net.ipv4.conf.wg0.send_redirects = 0

vyos@r14# run show conf com | match cont
set container name c1 allow-host-networks
set container name c1 description 'foof'
set container name c1 image 'busybox'
set container name c1 volume myvlm destination '/tmp'
set container name c1 volume myvlm propagation 'rshared'
set container name c1 volume myvlm source '/tmp'
set system sysctl parameter net.ipv4.tcp_congestion_control value 'bbr'
[edit]
vyos@r14# 
[edit]
vyos@r14# sudo podman inspect -f '{{.Mounts}}' c1
[{bind  /tmp /tmp   [nosuid nodev rbind] true rshared}]
[edit]
vyos@r14#