Re: [PATCH v3] net/ipv4: always honour route mtu during forwarding

2020-09-24 Thread David Miller
From: Maciej Żenczykowski Date: Wed, 23 Sep 2020 13:18:15 -0700 > From: Maciej Żenczykowski > > Documentation/networking/ip-sysctl.txt:46 says: > ip_forward_use_pmtu - BOOLEAN > By default we don't trust protocol path MTUs while forwarding > because they could be easily forged and can

[PATCH v3] net/ipv4: always honour route mtu during forwarding

2020-09-23 Thread Maciej Żenczykowski
From: Maciej Żenczykowski Documentation/networking/ip-sysctl.txt:46 says: ip_forward_use_pmtu - BOOLEAN By default we don't trust protocol path MTUs while forwarding because they could be easily forged and can lead to unwanted fragmentation by the router. You only need to enable