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nhrpd: add reference to net.ipv4.ip_forward_use_pmtu=1 thread

Add a mailing list reference regard net.ipv4.ip_forward_use_pmtu=1.
Timo Teräs 1 year ago
parent
commit
14c06e44cf
1 changed files with 1 additions and 0 deletions
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      nhrpd/README.kernel

+ 1 - 0
nhrpd/README.kernel

@@ -34,6 +34,7 @@ This list tries to collect them to one source of information:
     commit "ipv4: introduce ip_dst_mtu_maybe_forward and protect forwarding path against pmtu spoofing"
   Workaround:
     Set sysctl net.ipv4.ip_forward_use_pmtu=1
+    See: https://marc.info/?t=143636239500003&r=1&w=2 for details
     (Should fix kernel to have this by default on for tunnel devices)
 
 - subtle path mtu mishandling issues