X-Git-Url: http://git.sameswireless.fr/l2tpns.git/blobdiff_plain/ca4801db5521d0dc9f7c7f854f62f27c55420558..b8af729dea582ff53076bd6610552e3437e430a4:/Docs/manual.html diff --git a/Docs/manual.html b/Docs/manual.html index e4cc1a5..a857d9b 100644 --- a/Docs/manual.html +++ b/Docs/manual.html @@ -56,6 +56,7 @@ H3 {
  • Filtering
  • Clustering
  • Routing
  • +
  • Avoiding Fragmentation
  • Performance
  • @@ -223,6 +224,17 @@ This secret will be used in all RADIUS queries. If this is not set then RADIUS queries will fail. +
  • radius_authtypes (string)
    +A comma separated list of supported RADIUS authentication methods +(pap or chap), in order of preference (default pap). +
  • + +
  • allow_duplicate_users (boolean)
    +Allow multiple logins with the same username. If false (the default), +any prior session with the same username will be dropped when a new +session is established. +
  • +
  • bind_address (ip address)
    When the tun interface is created, it is assigned the address specified here. If no address is given, 1.1.1.1 is used. Packets @@ -274,10 +286,6 @@ second. Even if this is disabled, you can see this information by running the uptime command on the CLI.
  • -
  • cleanup_interval (int)
    -Interval between regular cleanups (in seconds). -
  • -
  • multi_read_count (int)
    Number of packets to read off each of the UDP and TUN fds when returned as readable by select (default: 10). Avoids incurring the @@ -1023,6 +1031,22 @@ ibgp" for IBGP. If this is not supported by your IOS revision, you can use "maximum-paths" (which works for EBGP) and set as_number to a private value such as 64512.

    +

    Avoiding Fragmentation

    + +Fragmentation of encapsulated return packets to the LAC may be avoided +for TCP sessions by adding a firewall rule to clamps the MSS on +outgoing SYN packets. + +The following is appropriate for interfaces with a typical MTU of +1500: + +
    +iptables -A FORWARD -i tun+ -o eth0 	\
    +    -p tcp --tcp-flags SYN,RST SYN	\
    +    -m tcpmss --mss 1413:1600		\
    +    -j TCPMSS --set-mss 1412
    +
    +

    Performance

    Performance is great.