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gnrc_dhcpv6_client_6lbr: disable router advertisements on upstream interface

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We don't want to advertise ourselves as a router to the upstream router.
This also leads to the border router ignoring advertisements from the upstream
router.
This commit is contained in:
Benjamin Valentin 2020-03-26 21:53:35 +01:00
parent 061eb88c05
commit fec156899c
1 changed files with 10 additions and 0 deletions
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10
sys/net/gnrc/application_layer/dhcpv6/client_6lbr.c
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@ -20,6 +20,7 @@
#include "net/dhcpv6/client.h" #include "net/dhcpv6/client.h"
#include "net/ipv6/addr.h" #include "net/ipv6/addr.h"
#include "net/gnrc.h" #include "net/gnrc.h"
#include "net/gnrc/ipv6/nib.h"
#include "net/gnrc/ipv6/nib/ft.h" #include "net/gnrc/ipv6/nib/ft.h"
#include "net/gnrc/netif/internal.h" #include "net/gnrc/netif/internal.h"
@ -85,6 +86,15 @@ static void _configure_upstream_netif(gnrc_netif_t *upstream_netif)
addr.u8[15] = 2; addr.u8[15] = 2;
gnrc_netif_ipv6_addr_add(upstream_netif, &addr, 64, 0); gnrc_netif_ipv6_addr_add(upstream_netif, &addr, 64, 0);
} }
/* Disable router advertisements on upstream interface. With this, the border
* router
* 1. Does not confuse the upstream router to add the border router to its
* default router list and
* 2. Solicits upstream Router Advertisements quicker to auto-configure its
* upstream global address.
*/
gnrc_ipv6_nib_change_rtr_adv_iface(upstream_netif, false);
} }
/** /**