iptables -L -n -v --line-numbers -t mangle
Chain PREROUTING (policy ACCEPT 0 packets, 0 bytes)
num   pkts bytes target     prot opt in     out     source               destination         

Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
num   pkts bytes target     prot opt in     out     source               destination         

Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
num   pkts bytes target     prot opt in     out     source               destination         

Chain OUTPUT (policy ACCEPT 4092M packets, 3788G bytes)
num   pkts bytes target     prot opt in     out     source               destination         
1    4092M 3788G OVN-KUBE-ITP  0    --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain POSTROUTING (policy ACCEPT 4092M packets, 3788G bytes)
num   pkts bytes target     prot opt in     out     source               destination         
1    4092M 3788G SUBMARINER-POSTROUTING  0    --  *      *       0.0.0.0/0            0.0.0.0/0           

Chain KUBE-IPTABLES-HINT (0 references)
num   pkts bytes target     prot opt in     out     source               destination         

Chain KUBE-KUBELET-CANARY (0 references)
num   pkts bytes target     prot opt in     out     source               destination         

Chain OVN-KUBE-ITP (1 references)
num   pkts bytes target     prot opt in     out     source               destination         

Chain SUBMARINER-POSTROUTING (1 references)
num   pkts bytes target     prot opt in     out     source               destination         
1        0     0 TCPMSS     6    --  *      *       0.0.0.0/0            0.0.0.0/0            match-set SUBMARINER-LOCALCIDRS src match-set SUBMARINER-REMOTECIDRS dst tcp flags:0x06/0x02 TCPMSS set 1380
2        0     0 TCPMSS     6    --  *      *       0.0.0.0/0            0.0.0.0/0            match-set SUBMARINER-REMOTECIDRS src match-set SUBMARINER-LOCALCIDRS dst tcp flags:0x06/0x02 TCPMSS set 1380