meta-google: gbmc-bridge: Restrict network from /72 to /76

We can have multiple gBMC networks within one "machine". This allows us
to have multiple address sets.

Change-Id: I5b18b7822f50bb0570e1aa5a70ac47036694d922
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/meta-google/recipes-google/ncsi/files/gbmc-ncsi-br-pub-addr.sh.in b/meta-google/recipes-google/ncsi/files/gbmc-ncsi-br-pub-addr.sh.in
index 961da50..b04f2aa 100644
--- a/meta-google/recipes-google/ncsi/files/gbmc-ncsi-br-pub-addr.sh.in
+++ b/meta-google/recipes-google/ncsi/files/gbmc-ncsi-br-pub-addr.sh.in
@@ -56,7 +56,7 @@
 Route=$ncsi_pfx/80
 LifetimeSec=60
 [Route]
-Destination=$stateless_pfx/72
+Destination=$stateless_pfx/76
 Type=unreachable
 Metric=1024
 EOF
diff --git a/meta-google/recipes-google/ncsi/files/gbmc-ncsi-nft.sh.in b/meta-google/recipes-google/ncsi/files/gbmc-ncsi-nft.sh.in
index d07b9e2..fc8e819 100644
--- a/meta-google/recipes-google/ncsi/files/gbmc-ncsi-nft.sh.in
+++ b/meta-google/recipes-google/ncsi/files/gbmc-ncsi-nft.sh.in
@@ -54,15 +54,15 @@
     if (( ${#ip_bytes[@]} != 0 )); then
       ip_bytes[8]=0xfd
       pfx="$(ip_bytes_to_str ip_bytes)"
-      contents+="        ip6 saddr != $pfx/72 ip6 daddr"
-      contents+=" $pfx/72 goto ncsi_gbmc_br_pub_input"$'\n'
+      contents+="        ip6 saddr != $pfx/76 ip6 daddr"
+      contents+=" $pfx/76 goto ncsi_gbmc_br_pub_input"$'\n'
     fi
   fi
 
   contents+='    }'$'\n'
   contents+='    chain ncsi_forward {'$'\n'
   if [ -n "$pfx" ]; then
-    contents+="        ip6 saddr != $pfx/72 ip6 daddr $pfx/72 accept"$'\n'
+    contents+="        ip6 saddr != $pfx/76 ip6 daddr $pfx/76 accept"$'\n'
   fi
   contents+='    }'$'\n'
   contents+='}'$'\n'