ndp: Set router lifetime to 9000s instead of 3600s

Seen while testing: lifetime expires while we're flooding a tap
interface with UDP packets, the router advertisement comes too late,
and the kernel drops the default router in the namespace. This
should only affect testing, so go for the maximum allowed value,
that is, 9000 seconds.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/ndp.c b/ndp.c
index a1d76c1..e18d4cc 100644
--- a/ndp.c
+++ b/ndp.c
@@ -100,7 +100,7 @@ int ndp(struct ctx *c, struct ethhdr *eh, size_t len)
 		info("NDP: received RS, sending RA");
 		ihr->icmp6_type = RA;
 		ihr->icmp6_code = 0;
-		ihr->icmp6_rt_lifetime = htons(3600);
+		ihr->icmp6_rt_lifetime = htons(9000);
 		ihr->icmp6_addrconf_managed = 1;
 
 		p = (unsigned char *)(ihr + 1);