diff --git a/bin/start-vpn b/bin/start-vpn
index 4bfca83..87b79e4 100755
--- a/bin/start-vpn
+++ b/bin/start-vpn
@@ -29,8 +29,8 @@ sysctl net.ipv6.conf.all.forwarding=1
 sysctl net.ipv6.conf.eth0.proxy_ndp=1
 iptables -t nat -A POSTROUTING -s 10.8.0.0/16 -o eth0 -m policy --dir out --pol ipsec -j ACCEPT
 iptables -t nat -A POSTROUTING -s 10.8.0.0/16 -o eth0 -j MASQUERADE
-ip6tables -t nat -A POSTROUTING -s 2a00:1450:400c:c05::/64 -o eth0 -m policy --dir out --pol ipsec -j ACCEPT
-ip6tables -t nat -A POSTROUTING -s 2a00:1450:400c:c05::/64 -o eth0 -j MASQUERADE
+ip6tables -t nat -A POSTROUTING -s fd6a:6ce3:c8d8:7caa::/64 -o eth0 -m policy --dir out --pol ipsec -j ACCEPT
+ip6tables -t nat -A POSTROUTING -s fd6a:6ce3:c8d8:7caa::/64 -o eth0 -j MASQUERADE
 
 # hotfix for openssl `unable to write 'random state'` stderr
 SHARED_SECRET="123$(openssl rand -base64 32 2>/dev/null)"