ng_ipv6: optimize multi-interface support
ng_ipv6: optimize multi-interface support

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