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-rw-r--r--sys/netinet/if_ether.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/netinet/if_ether.c b/sys/netinet/if_ether.c
index 94beb78..615a489 100644
--- a/sys/netinet/if_ether.c
+++ b/sys/netinet/if_ether.c
@@ -294,8 +294,10 @@ arp_rtrequest(req, rt, info)
rt->rt_expire = 0;
bcopy(IF_LLADDR(rt->rt_ifp), LLADDR(SDL(gate)),
SDL(gate)->sdl_alen = rt->rt_ifp->if_addrlen);
- if (useloopback)
+ if (useloopback) {
rt->rt_ifp = loif;
+ rt->rt_rmx.rmx_mtu = loif->if_mtu;
+ }
/*
* make sure to set rt->rt_ifa to the interface
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