* Bridge netfilter MTU discovery
@ 2006-06-02 18:15 Stephen Hemminger
2006-06-08 7:17 ` Patrick McHardy
0 siblings, 1 reply; 2+ messages in thread
From: Stephen Hemminger @ 2006-06-02 18:15 UTC (permalink / raw)
To: Patrick McHardy; +Cc: Netfilter Development Mailinglist
Is there an easy way to force bridge packets to cause an ICMP frag needed
if the MTU of the destination is too small. Normal bridging will just drop
the packet, but a rule to send ICMP would allow PMTU to work. Maybe even
having a module to fragment would be good.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Bridge netfilter MTU discovery
2006-06-02 18:15 Bridge netfilter MTU discovery Stephen Hemminger
@ 2006-06-08 7:17 ` Patrick McHardy
0 siblings, 0 replies; 2+ messages in thread
From: Patrick McHardy @ 2006-06-08 7:17 UTC (permalink / raw)
To: Stephen Hemminger; +Cc: Netfilter Development Mailinglist
Stephen Hemminger wrote:
> Is there an easy way to force bridge packets to cause an ICMP frag needed
> if the MTU of the destination is too small. Normal bridging will just drop
> the packet, but a rule to send ICMP would allow PMTU to work. Maybe even
> having a module to fragment would be good.
Conntrack breaks PMTU discovery by always defragmenting/refragmenting
packets, regardless of IP_DF. But there is no way to generate ICMP
frag required messages using iptables.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2006-06-08 7:17 ` Patrick McHardy
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