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mesh_wg: increase the mtu so wg has to fragment
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Markus 2020-11-25 18:28:22 +01:00
parent 5422d3ad82
commit 5cd6b06053
2 changed files with 10 additions and 5 deletions
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2
host_vars/gw31.regensburg.freifunk.net
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@ -8,7 +8,7 @@ nextnode4: 10.90.96.1
nextnode6: fdef:f30f:1337:cafe::1 nextnode6: fdef:f30f:1337:cafe::1
mtu: 1312 mtu: 1312
wg_vni_id: 3120917 vx_wg_vni: 3120917
fastd_port: 10030 fastd_port: 10030

13
roles/mesh_wg/templates/mesh_wg.conf.j2
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@ -3,11 +3,15 @@
# vx-{{ site_code }} # vx-{{ site_code }}
auto vx-{{ site_code }} auto vx-{{ site_code }}
iface vx-{{ site_code }} iface vx-{{ site_code }}
vxlan-id 3120917 #vxlan-id {{ vx_wg_vni }}
vxlan-learning no #vxlan-local-tunnelip6 fe80::{{ gateway_id }}
vxlan-local-tunnelip6 fe80::{{ gateway_id }} #vxlan-physdev wg-ffrgb_tst
vxlan-physdev wg-ffrgb_tst pre-up ip -6 link add vx-{{ site_code }} type vxlan id {{ vx_wg_vni }} local fe80::{{ gateway_id }} dev wg-{{ site_code }} noudpcsum dstport 8472
up ip link set vx-{{ site_code }} up
post-up ip link set vx-{{ site_code }} mtu 1532
post-up batctl -m bat-{{ site_code }} if add vx-{{ site_code }} post-up batctl -m bat-{{ site_code }} if add vx-{{ site_code }}
down ip link set vx-{{ site_code }} down
post-down ip -6 link del vx-{{ site_code }}
# wg-{{ site_code }} # wg-{{ site_code }}
auto wg-{{ site_code }} auto wg-{{ site_code }}
@ -15,4 +19,5 @@ iface wg-{{ site_code }}
address fe80::{{ gateway_id }}/128 address fe80::{{ gateway_id }}/128
ipv6-addrgen no ipv6-addrgen no
link-type wireguard link-type wireguard
mtu 1610
pre-up wg setconf wg-{{ site_code }} /etc/wireguard/wg-{{ site_code }}.conf pre-up wg setconf wg-{{ site_code }} /etc/wireguard/wg-{{ site_code }}.conf