ng_ipv6: add loopback support
ng_ipv6: add loopback support

EmuxEvans/RIOT,altairpearl/RIOT,adrianghc/RIOT,automote/RIOT,ntrtrung/RIOT,msolters/RIOT,khhhh/RIOT,adrianghc/RIOT,smlng/RIOT,tfar/RIOT,zhuoshuguo/RIOT,bartfaizoltan/RIOT,luciotorre/RIOT,automote/RIOT,watr-li/RIOT,OlegHahm/RIOT,ThanhVic/RIOT,basilfx/RIOT,BytesGalore/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,patkan/RIOT,wentaoshang/RIOT,josephnoir/RIOT,JensErdmann/RIOT,khhhh/RIOT,aeneby/RIOT,MohmadAyman/RIOT,latsku/RIOT,RIOT-OS/RIOT,luciotorre/RIOT,Darredevil/RIOT,TobiasFredersdorf/RIOT,marcosalm/RIOT,jbeyerstedt/RIOT-OTA-update,Hyungsin/RIOT-OS,dailab/RIOT,OlegHahm/RIOT,Ell-i/RIOT,TobiasFredersdorf/RIOT,openkosmosorg/RIOT,Josar/RIOT,Josar/RIOT,rfuentess/RIOT,msolters/RIOT,d00616/RIOT,Darredevil/RIOT,neumodisch/RIOT,MohmadAyman/RIOT,stevenj/RIOT,authmillenon/RIOT,robixnai/RIOT,alignan/RIOT,ks156/RIOT,malosek/RIOT,jbeyerstedt/RIOT-OTA-update,automote/RIOT,mfrey/RIOT,beurdouche/RIOT,cladmi/RIOT,asanka-code/RIOT,centurysys/RIOT,syin2/RIOT,abp719/RIOT,gbarnett/RIOT,brettswann/RIOT,daniel-k/RIOT,ThanhVic/RIOT,toonst/RIOT,l3nko/RIOT,plushvoxel/RIOT,shady33/RIOT,yogo1212/RIOT,zhuoshuguo/RIOT,dkm/RIOT,abp719/RIOT,ant9000/RIOT,tdautc19841202/RIOT,biboc/RIOT,arvindpdmn/RIOT,miri64/RIOT,ThanhVic/RIOT,miri64/RIOT,khhhh/RIOT,basilfx/RIOT,jfischer-phytec-iot/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,PSHIVANI/Riot-Code,beurdouche/RIOT,attdona/RIOT,abkam07/RIOT,kerneltask/RIOT,dkm/RIOT,DipSwitch/RIOT,biboc/RIOT,jasonatran/RIOT,jbeyerstedt/RIOT-OTA-update,neiljay/RIOT,MohmadAyman/RIOT,bartfaizoltan/RIOT,dhruvvyas90/RIOT,rfuentess/RIOT,lazytech-org/RIOT,jfischer-phytec-iot/RIOT,josephnoir/RIOT,khhhh/RIOT,dkm/RIOT,changbiao/RIOT,changbiao/RIOT,Osblouf/RIOT,openkosmosorg/RIOT,rakendrathapa/RIOT,immesys/RiSyn,neiljay/RIOT,PSHIVANI/Riot-Code,koenning/RIOT,gbarnett/RIOT,gautric/RIOT,ks156/RIOT,OlegHahm/RIOT,altairpearl/RIOT,katezilla/RIOT,beurdouche/RIOT,Lexandro92/RIOT-CoAP,jasonatran/RIOT,MonsterCode8000/RIOT,Osblouf/RIOT,Josar/RIOT,gautric/RIOT,kbumsik/RIOT,changbiao/RIOT,mtausig/RIOT,attdona/RIOT,ximus/RIOT,LudwigOrtmann/RIOT,toonst/RIOT,khhhh/RIOT,OTAkeys/RIOT,stevenj/RIOT,EmuxEvans/RIOT,shady33/RIOT,kaleb-himes/RIOT,shady33/RIOT,rousselk/RIOT,backenklee/RIOT,latsku/RIOT,LudwigOrtmann/RIOT,robixnai/RIOT,lebrush/RIOT,mtausig/RIOT,DipSwitch/RIOT,FrancescoErmini/RIOT,jremmert-phytec-iot/RIOT,RIOT-OS/RIOT,ks156/RIOT,malosek/RIOT,LudwigKnuepfer/RIOT,kbumsik/RIOT,Lexandro92/RIOT-CoAP,lazytech-org/RIOT,backenklee/RIOT,arvindpdmn/RIOT,abkam07/RIOT,gbarnett/RIOT,bartfaizoltan/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,openkosmosorg/RIOT,wentaoshang/RIOT,abkam07/RIOT,JensErdmann/RIOT,centurysys/RIOT,kb2ma/RIOT,LudwigOrtmann/RIOT,abp719/RIOT,haoyangyu/RIOT,FrancescoErmini/RIOT,MohmadAyman/RIOT,brettswann/RIOT,Lexandro92/RIOT-CoAP,roberthartung/RIOT,DipSwitch/RIOT,kushalsingh007/RIOT,gautric/RIOT,biboc/RIOT,alignan/RIOT,mziegert/RIOT,koenning/RIOT,PSHIVANI/Riot-Code,gebart/RIOT,patkan/RIOT,openkosmosorg/RIOT,kaspar030/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,zhuoshuguo/RIOT,watr-li/RIOT,plushvoxel/RIOT,lazytech-org/RIOT,watr-li/RIOT,PSHIVANI/Riot-Code,kushalsingh007/RIOT,robixnai/RIOT,immesys/RiSyn,syin2/RIOT,alignan/RIOT,kaspar030/RIOT,arvindpdmn/RIOT,A-Paul/RIOT,alignan/RIOT,bartfaizoltan/RIOT,chris-wood/RIOT,alex1818/RIOT,authmillenon/RIOT,RBartz/RIOT,brettswann/RIOT,watr-li/RIOT,daniel-k/RIOT,l3nko/RIOT,kushalsingh007/RIOT,bartfaizoltan/RIOT,kerneltask/RIOT,rousselk/RIOT,EmuxEvans/RIOT,jremmert-phytec-iot/RIOT,thomaseichinger/RIOT,gebart/RIOT,Hyungsin/RIOT-OS,toonst/RIOT,abkam07/RIOT,rakendrathapa/RIOT,kYc0o/RIOT,ntrtrung/RIOT,Osblouf/RIOT,marcosalm/RIOT,hamilton-mote/RIOT-OS,latsku/RIOT,hamilton-mote/RIOT-OS,patkan/RIOT,yogo1212/RIOT,l3nko/RIOT,binarylemon/RIOT,Osblouf/RIOT,mziegert/RIOT,changbiao/RIOT,chris-wood/RIOT,alex1818/RIOT,binarylemon/RIOT,smlng/RIOT,basilfx/RIOT,beurdouche/RIOT,kushalsingh007/RIOT,miri64/RIOT,Ell-i/RIOT,OTAkeys/RIOT,biboc/RIOT,robixnai/RIOT,miri64/RIOT,kushalsingh007/RIOT,lazytech-org/RIOT,thiagohd/RIOT,RubikonAlpha/RIOT,rfuentess/RIOT,BytesGalore/RIOT,shady33/RIOT,malosek/RIOT,marcosalm/RIOT,changbiao/RIOT,gebart/RIOT,josephnoir/RIOT,roberthartung/RIOT,avmelnikoff/RIOT,dkm/RIOT,RBartz/RIOT,x3ro/RIOT,wentaoshang/RIOT,cladmi/RIOT,ntrtrung/RIOT,jasonatran/RIOT,alex1818/RIOT,bartfaizoltan/RIOT,luciotorre/RIOT,msolters/RIOT,koenning/RIOT,koenning/RIOT,backenklee/RIOT,d00616/RIOT,daniel-k/RIOT,basilfx/RIOT,MarkXYang/RIOT,rfuentess/RIOT,avmelnikoff/RIOT,A-Paul/RIOT,haoyangyu/RIOT,rakendrathapa/RIOT,kaleb-himes/RIOT,DipSwitch/RIOT,openkosmosorg/RIOT,Darredevil/RIOT,wentaoshang/RIOT,LudwigKnuepfer/RIOT,mfrey/RIOT,JensErdmann/RIOT,mziegert/RIOT,x3ro/RIOT,patkan/RIOT,rajma996/RIOT,attdona/RIOT,mziegert/RIOT,d00616/RIOT,koenning/RIOT,jremmert-phytec-iot/RIOT,A-Paul/RIOT,Darredevil/RIOT,herrfz/RIOT,shady33/RIOT,kbumsik/RIOT,marcosalm/RIOT,BytesGalore/RIOT,thomaseichinger/RIOT,ks156/RIOT,attdona/RIOT,RubikonAlpha/RIOT,backenklee/RIOT,dhruvvyas90/RIOT,asanka-code/RIOT,jasonatran/RIOT,ntrtrung/RIOT,immesys/RiSyn,EmuxEvans/RIOT,herrfz/RIOT,cladmi/RIOT,smlng/RIOT,daniel-k/RIOT,chris-wood/RIOT,hamilton-mote/RIOT-OS,jasonatran/RIOT,RIOT-OS/RIOT,ThanhVic/RIOT,Ell-i/RIOT,abkam07/RIOT,herrfz/RIOT,haoyangyu/RIOT,attdona/RIOT,alex1818/RIOT,PSHIVANI/Riot-Code,arvindpdmn/RIOT,OTAkeys/RIOT,ntrtrung/RIOT,RBartz/RIOT,adrianghc/RIOT,authmillenon/RIOT,plushvoxel/RIOT,chris-wood/RIOT,smlng/RIOT,alex1818/RIOT,tdautc19841202/RIOT,abp719/RIOT,jfischer-phytec-iot/RIOT,wentaoshang/RIOT,chris-wood/RIOT,LudwigOrtmann/RIOT,TobiasFredersdorf/RIOT,FrancescoErmini/RIOT,gebart/RIOT,kaspar030/RIOT,adrianghc/RIOT,RubikonAlpha/RIOT,kaleb-himes/RIOT,plushvoxel/RIOT,altairpearl/RIOT,mfrey/RIOT,binarylemon/RIOT,d00616/RIOT,stevenj/RIOT,Josar/RIOT,Yonezawa-T2/RIOT,ant9000/RIOT,backenklee/RIOT,chris-wood/RIOT,rajma996/RIOT,thiagohd/RIOT,dhruvvyas90/RIOT,rousselk/RIOT,MarkXYang/RIOT,stevenj/RIOT,jremmert-phytec-iot/RIOT,openkosmosorg/RIOT,x3ro/RIOT,LudwigOrtmann/RIOT,tfar/RIOT,Josar/RIOT,stevenj/RIOT,zhuoshuguo/RIOT,JensErdmann/RIOT,tdautc19841202/RIOT,biboc/RIOT,mziegert/RIOT,syin2/RIOT,kaleb-himes/RIOT,ant9000/RIOT,neumodisch/RIOT,haoyangyu/RIOT,EmuxEvans/RIOT,msolters/RIOT,kYc0o/RIOT,Osblouf/RIOT,centurysys/RIOT,miri64/RIOT,abkam07/RIOT,lebrush/RIOT,jbeyerstedt/RIOT-OTA-update,Darredevil/RIOT,Hyungsin/RIOT-OS,latsku/RIOT,rakendrathapa/RIOT,OlegHahm/RIOT,jfischer-phytec-iot/RIOT,abp719/RIOT,kb2ma/RIOT,TobiasFredersdorf/RIOT,FrancescoErmini/RIOT,gbarnett/RIOT,ximus/RIOT,Osblouf/RIOT,centurysys/RIOT,arvindpdmn/RIOT,kbumsik/RIOT,d00616/RIOT,automote/RIOT,immesys/RiSyn,gbarnett/RIOT,syin2/RIOT,adjih/RIOT,neumodisch/RIOT,automote/RIOT,shady33/RIOT,DipSwitch/RIOT,adjih/RIOT,Yonezawa-T2/RIOT,rakendrathapa/RIOT,neumodisch/RIOT,robixnai/RIOT,MohmadAyman/RIOT,OlegHahm/RIOT,lazytech-org/RIOT,ximus/RIOT,ntrtrung/RIOT,neiljay/RIOT,Darredevil/RIOT,roberthartung/RIOT,ks156/RIOT,josephnoir/RIOT,rakendrathapa/RIOT,l3nko/RIOT,MarkXYang/RIOT,tfar/RIOT,alex1818/RIOT,MarkXYang/RIOT,altairpearl/RIOT,rousselk/RIOT,authmillenon/RIOT,adjih/RIOT,thomaseichinger/RIOT,neumodisch/RIOT,MonsterCode8000/RIOT,dailab/RIOT,altairpearl/RIOT,jfischer-phytec-iot/RIOT,aeneby/RIOT,Hyungsin/RIOT-OS,tdautc19841202/RIOT,malosek/RIOT,kb2ma/RIOT,dhruvvyas90/RIOT,asanka-code/RIOT,OTAkeys/RIOT,Ell-i/RIOT,tdautc19841202/RIOT,asanka-code/RIOT,kaspar030/RIOT,attdona/RIOT,LudwigKnuepfer/RIOT,kaleb-himes/RIOT,stevenj/RIOT,kushalsingh007/RIOT,d00616/RIOT,josephnoir/RIOT,adjih/RIOT,OTAkeys/RIOT,rfuentess/RIOT,Hyungsin/RIOT-OS,avmelnikoff/RIOT,gbarnett/RIOT,kb2ma/RIOT,Yonezawa-T2/RIOT,centurysys/RIOT,thomaseichinger/RIOT,A-Paul/RIOT,DipSwitch/RIOT,marcosalm/RIOT,roberthartung/RIOT,jremmert-phytec-iot/RIOT,dkm/RIOT,aeneby/RIOT,l3nko/RIOT,msolters/RIOT,RBartz/RIOT,MarkXYang/RIOT,patkan/RIOT,RBartz/RIOT,dailab/RIOT,kYc0o/RIOT,ant9000/RIOT,lebrush/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,binarylemon/RIOT,mziegert/RIOT,RBartz/RIOT,FrancescoErmini/RIOT,yogo1212/RIOT,neiljay/RIOT,neumodisch/RIOT,gautric/RIOT,kbumsik/RIOT,automote/RIOT,rajma996/RIOT,immesys/RiSyn,adjih/RIOT,mtausig/RIOT,LudwigKnuepfer/RIOT,katezilla/RIOT,RubikonAlpha/RIOT,RIOT-OS/RIOT,Yonezawa-T2/RIOT,herrfz/RIOT,daniel-k/RIOT,luciotorre/RIOT,khhhh/RIOT,lebrush/RIOT,centurysys/RIOT,robixnai/RIOT,Lexandro92/RIOT-CoAP,hamilton-mote/RIOT-OS,MonsterCode8000/RIOT,alignan/RIOT,dailab/RIOT,kerneltask/RIOT,brettswann/RIOT,msolters/RIOT,mfrey/RIOT,abp719/RIOT,zhuoshuguo/RIOT,koenning/RIOT,toonst/RIOT,avmelnikoff/RIOT,Yonezawa-T2/RIOT,kaspar030/RIOT,BytesGalore/RIOT,watr-li/RIOT,ThanhVic/RIOT,plushvoxel/RIOT,patkan/RIOT,yogo1212/RIOT,dhruvvyas90/RIOT,neiljay/RIOT,kYc0o/RIOT,ximus/RIOT,MohmadAyman/RIOT,thiagohd/RIOT,beurdouche/RIOT,LudwigOrtmann/RIOT,thiagohd/RIOT,Yonezawa-T2/RIOT,Lexandro92/RIOT-CoAP,latsku/RIOT,rajma996/RIOT,tfar/RIOT,FrancescoErmini/RIOT,cladmi/RIOT,authmillenon/RIOT,LudwigKnuepfer/RIOT,herrfz/RIOT,yogo1212/RIOT,JensErdmann/RIOT,katezilla/RIOT,asanka-code/RIOT,JensErdmann/RIOT,x3ro/RIOT,jbeyerstedt/RIOT-OTA-update,smlng/RIOT,ant9000/RIOT,dhruvvyas90/RIOT,MonsterCode8000/RIOT,tfar/RIOT,tdautc19841202/RIOT,MonsterCode8000/RIOT,katezilla/RIOT,mtausig/RIOT,MonsterCode8000/RIOT,ThanhVic/RIOT,EmuxEvans/RIOT,zhuoshuguo/RIOT,TobiasFredersdorf/RIOT,malosek/RIOT,aeneby/RIOT,wentaoshang/RIOT,katezilla/RIOT,mfrey/RIOT,yogo1212/RIOT,MarkXYang/RIOT,kYc0o/RIOT,luciotorre/RIOT,RIOT-OS/RIOT,gautric/RIOT,mtausig/RIOT,RubikonAlpha/RIOT,luciotorre/RIOT,RubikonAlpha/RIOT,PSHIVANI/Riot-Code,rajma996/RIOT,thomaseichinger/RIOT,altairpearl/RIOT,kerneltask/RIOT,binarylemon/RIOT,haoyangyu/RIOT,syin2/RIOT,avmelnikoff/RIOT,gebart/RIOT,Lexandro92/RIOT-CoAP,rajma996/RIOT,A-Paul/RIOT,jremmert-phytec-iot/RIOT,aeneby/RIOT,roberthartung/RIOT,cladmi/RIOT,lebrush/RIOT,marcosalm/RIOT,brettswann/RIOT,hamilton-mote/RIOT-OS,x3ro/RIOT,herrfz/RIOT,authmillenon/RIOT,immesys/RiSyn,rousselk/RIOT,lebrush/RIOT,toonst/RIOT,Ell-i/RIOT,dailab/RIOT,haoyangyu/RIOT,ximus/RIOT,kb2ma/RIOT,brettswann/RIOT,kerneltask/RIOT,arvindpdmn/RIOT,latsku/RIOT,daniel-k/RIOT,thiagohd/RIOT,watr-li/RIOT,binarylemon/RIOT,asanka-code/RIOT,BytesGalore/RIOT,basilfx/RIOT,ximus/RIOT,l3nko/RIOT,thiagohd/RIOT,changbiao/RIOT,rousselk/RIOT,malosek/RIOT,adrianghc/RIOT