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Update network_tunnel_manager.sh #6084

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Update network_tunnel_manager.sh #6084

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13 changes: 7 additions & 6 deletions scripts/network_tunnel_manager.sh
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
#!/bin/bash

network_device=$(ip route show default | awk '/default/ {print $5}')
ipv6_network_device=$(ip -6 route show default | awk '/default/ {print $5}')
tunnel_interface="nymtun0"
wg_tunnel_interface="nymwg"

Expand All @@ -24,11 +25,11 @@ fetch_ipv6_address() {
}

fetch_and_display_ipv6() {
ipv6_address=$(ip -6 addr show "$network_device" scope global | grep inet6 | awk '{print $2}')
ipv6_address=$(ip -6 addr show "$ipv6_network_device" scope global | grep inet6 | awk '{print $2}')
if [[ -z "$ipv6_address" ]]; then
echo "no global IPv6 address found on $network_device."
echo "no global IPv6 address found on $ipv6_network_device."
else
echo "IPv6 address on $network_device: $ipv6_address"
echo "IPv6 address on $ipv6_network_device: $ipv6_address"
fi
}

Expand Down Expand Up @@ -89,9 +90,9 @@ apply_iptables_rules() {
sudo iptables -A FORWARD -i "$interface" -o "$network_device" -j ACCEPT
sudo iptables -A FORWARD -i "$network_device" -o "$interface" -m state --state RELATED,ESTABLISHED -j ACCEPT

sudo ip6tables -t nat -A POSTROUTING -o "$network_device" -j MASQUERADE
sudo ip6tables -A FORWARD -i "$interface" -o "$network_device" -j ACCEPT
sudo ip6tables -A FORWARD -i "$network_device" -o "$interface" -m state --state RELATED,ESTABLISHED -j ACCEPT
sudo ip6tables -t nat -A POSTROUTING -o "$ipv6_network_device" -j MASQUERADE
sudo ip6tables -A FORWARD -i "$interface" -o "$ipv6_network_device" -j ACCEPT
sudo ip6tables -A FORWARD -i "$ipv6_network_device" -o "$interface" -m state --state RELATED,ESTABLISHED -j ACCEPT

sudo iptables-save | sudo tee /etc/iptables/rules.v4
sudo ip6tables-save | sudo tee /etc/iptables/rules.v6
Expand Down
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