Marking as Invalid since the default firewall policy is working as
intended.
** Changed in: ufw (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1882314
Title:
Firewall rule in before6.rules for dhcp6 is wrong
Status in ufw package in Ubuntu:
Invalid
Bug description:
When running DHCPv6, clients are not able get IP address.
The firewall rule in ip6table is incorrect, and not allowing client requests
in. The ports need to be swapped and the dst address needs to be removed, as
it's a broadcast
The file delivered - /usr/share/ufw/iptables/before6.rules
which is then copied to - /etc/ufw/before6.rules
Delivered by Package:
# allow dhcp client to work
-A ufw6-before-input -p udp -s fe80::/10 --sport 547 -d fe80::/10 --dport 546
-j ACCEPT
The ports for
--sport and --dport are swapped
-d fe80::/10 needs to be removed
Should be:
-A ufw6-before-input -p udp -s fe80::/10 --sport 546 --dport 547 -j
ACCEPT
Package version found in:
0.36-0ubuntu0.1
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