diff --git a/doc/ipv6.txt b/doc/ipv6.txt
index 1fe56ef..32517d2 100644
--- a/doc/ipv6.txt
+++ b/doc/ipv6.txt
@@ -2,12 +2,12 @@ IPv6 in Dirtbags CTF
 ====================
 
 The contest network uses IPs in the unique local address space
-fd82:b410:3441::/48.  Each team gets a /64 internal subnet, with
+fd84:b410:3441::/48.  Each team gets a /64 internal subnet, with
 their team number (generally the same as the switch port).
 
-Each subnet's gateway is ::1.
+Each subnet's gateway is fd84:b410:3441:$teamno::1.
 
-Team 5, in switch port 5, on VLAN 5, gets fd82:b410:3441:5::/64.
+Team 5, in switch port 5, on VLAN 5, gets fd84:b410:3441:5::/64.
 
 Server network is fd84:b410:3441::/64 (AKA fd84:b410:3441:0::/64).  To
 make things easier to type, use hosts in the /112.  The MCP server lives