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authorPhil Oester <kernel@linuxace.com>2005-09-19 15:00:33 +0000
committerHarald Welte <laforge@gnumonks.org>2005-09-19 15:00:33 +0000
commit8cf65913bb6353bf0e92eab0669d1c4c53b43623 (patch)
treeb77c8d881be4ec2a0e701e5bbd78ac6c6f0df111 /extensions/.nth-test
parent3643aca580531eb795832feb8a83cca57f57dc0e (diff)
Kernels higher than 2.6.10 don't support multiple --to arguments in
DNAT and SNAT targets. At present, the error is somewhat vague: # iptables -t nat -A foo -j SNAT --to 1.2.3.4 --to 2.3.4.5 iptables: Invalid argument But if we want current iptables to work with kernels <= 2.6.10, we cannot simply disallow this in all cases. So the below patch adds kernel version checking to iptables, and utilizes it in [DS]NAT. Now, users will see a more informative error: # iptables -t nat -A foo -j SNAT --to 1.2.3.4 --to 2.3.4.5 iptables v1.3.3: Multiple --to-source not supported This generic infrastructure (shamelessly lifted from procps btw) may come in handy in the future for other changes. This fixes bugzilla #367. (Phil Oester)
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