github.com/kubearmor/cilium@v1.6.12/daemon/sysctl_linux.go (about) 1 // Copyright 2019 Authors of Cilium 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package main 16 17 import ( 18 "github.com/cilium/cilium/pkg/option" 19 "github.com/cilium/cilium/pkg/sysctl" 20 ) 21 22 func enableIPForwarding() error { 23 if err := sysctl.Enable("net.ipv4.ip_forward"); err != nil { 24 return err 25 } 26 if err := sysctl.Enable("net.ipv4.conf.all.forwarding"); err != nil { 27 return err 28 } 29 if option.Config.EnableIPv6 { 30 if err := sysctl.Enable("net.ipv6.conf.all.forwarding"); err != nil { 31 return err 32 } 33 } 34 return nil 35 }