The bug is still valid.
Ubuntu release: Jaunty. pppoeconf version 1.18ubuntu1
Before running "poff -a", a partial excerpt of my iptables rules:
Chain FORWARD (policy ACCEPT)
num target prot opt source destination
1 TCPMSS tcp -- anywhere anywhere tcp
flags:SYN,RST/SYN tcpmss match 1400:1536 TCPMSS clamp to PMTU
2 TCPMSS tcp -- anywhere anywhere tcp
flags:SYN,RST/SYN tcpmss match 1400:1536 TCPMSS clamp to PMTU
3 ACCEPT all -- anywhere 10.0.0.0/24 state
RELATED,ESTABLISHED
(Note that the bug is only exhibited when the TCPMSS rule has been
double-inserted.)
After running "poff -a", a partial excerpt:
Chain FORWARD (policy ACCEPT)
num target prot opt source destination
1 TCPMSS tcp -- anywhere anywhere tcp
flags:SYN,RST/SYN tcpmss match 1400:1536 TCPMSS clamp to PMTU
2 LOG tcp -- anywhere 10.0.0.0/24 limit: avg
3/min burst 5 LOG level warning prefix `Unknown forward TCP: '
Note that:
1. one TCPMSS rule is still present
2. the ACCEPT rule at line #3 in the original output has vanished.
Note to triagers: as per my comment in October 2008, if /etc/ppp/ip-
down.d/0clampmss still has the exact line:
iptables -L -n -v --line-numbers | grep "TCPMSS.*$PPP_IFACE.*clamp" |
cut -f1 -d " " | xargs -n1 -r iptables -D FORWARD
then it's extraordinarily unlikely that the bug has magically fixed
itself.
** Changed in: pppoeconf (Ubuntu)
Status: Incomplete => Confirmed
--
pppoeconf's generated /etc/ppp/ip-down.d/0clampmss can remove the wrong
iptables rules
https://bugs.launchpad.net/bugs/116714
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