[Openswan Users] UDP fragmentation in Linux

Rolf Offermanns lists at sysgo.com
Fri Mar 4 19:43:53 CET 2005


Marcus Leech wrote:

> That appears to be the correct behaviour.
> 
> Do you run iptables on your system?  What sysctl variables do you have set?
I do not have any active iptable rules.
sysctl from /proc/sys/net attached.

-Rolf
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./ipv4/neigh/vmnet1/proxy_qlen:64
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./ipv4/neigh/vmnet1/retrans_time:99
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./ipv4/neigh/eth0/gc_stale_time:60
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./ipv4/neigh/eth0/base_reachable_time:30
./ipv4/neigh/eth0/retrans_time:99
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./ipv4/neigh/lo/locktime:99
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./ipv4/neigh/default/gc_thresh3:1024
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./ipv4/neigh/default/locktime:99
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./ipv4/tcp_no_metrics_save:0
./ipv4/ipfrag_secret_interval:600
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./ipv4/icmp_ratelimit:1000
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./ipv4/inet_peer_minttl:120
./ipv4/inet_peer_threshold:65664
./ipv4/igmp_max_msf:10
./ipv4/igmp_max_memberships:20
./ipv4/route/secret_interval:600
./ipv4/route/min_adv_mss:256
./ipv4/route/min_pmtu:552
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./ipv4/route/gc_elasticity:8
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./ipv4/route/error_cost:1000
./ipv4/route/redirect_silence:20480
./ipv4/route/redirect_number:9
./ipv4/route/redirect_load:20
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./ipv4/route/gc_timeout:300
./ipv4/route/gc_min_interval:0
./ipv4/route/max_size:65536
./ipv4/route/gc_thresh:4096
./ipv4/route/max_delay:10
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./ipv4/icmp_echo_ignore_broadcasts:0
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./ipv4/ip_local_port_range:32768	61000
./ipv4/tcp_max_syn_backlog:1024
./ipv4/tcp_rfc1337:0
./ipv4/tcp_stdurg:0
./ipv4/tcp_abort_on_overflow:0
./ipv4/tcp_tw_recycle:0
./ipv4/tcp_syncookies:0
./ipv4/tcp_fin_timeout:60
./ipv4/tcp_retries2:15
./ipv4/tcp_retries1:3
./ipv4/tcp_keepalive_intvl:75
./ipv4/tcp_keepalive_probes:9
./ipv4/tcp_keepalive_time:7200
./ipv4/ipfrag_time:30
./ipv4/ip_dynaddr:0
./ipv4/ipfrag_low_thresh:196608
./ipv4/ipfrag_high_thresh:262144
./ipv4/tcp_max_tw_buckets:180000
./ipv4/tcp_max_orphans:16384
./ipv4/tcp_synack_retries:5
./ipv4/tcp_syn_retries:5
./ipv4/ip_nonlocal_bind:0
./ipv4/ip_no_pmtu_disc:0
./ipv4/ip_autoconfig:0
./ipv4/ip_default_ttl:64
./ipv4/ip_forward:0
./ipv4/tcp_retrans_collapse:1
./ipv4/tcp_sack:1
./ipv4/tcp_window_scaling:1
./ipv4/tcp_timestamps:1
./core/somaxconn:128
./core/optmem_max:10240
./core/message_burst:10
./core/message_cost:5
./core/mod_cong:290
./core/lo_cong:100
./core/no_cong:20
./core/no_cong_thresh:10
./core/netdev_max_backlog:300
./core/dev_weight:64
./core/rmem_default:111616
./core/wmem_default:111616
./core/rmem_max:111616
./core/wmem_max:111616


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