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sarjsheff/gre.sh

Created April 25, 2022 13:58
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ip netns gre
Raw
gre.sh
#!/bin/sh
./simple_lan.sh # https://gist.github.com/sarjsheff/1b5b088c18e237c9aa28fcc218578536#file-simple_net-sh
set -x
ip -n ve1 tunnel add ve1tun mode gre remote 10.20.1.6 local 10.20.1.1
ip -n ve1 addr add 10.20.2.1/24 dev ve1tun
ip -n ve4 tunnel add ve4tun mode gre remote 10.20.1.1 local 10.20.1.6
ip -n ve4 addr add 10.20.2.2/24 dev ve4tun
ip -n ve1 link set ve1tun up
ip -n ve4 link set ve4tun up
Raw
map_gre.md 
flowchart LR
    ve1e1 --- ve2e1
    ve1e2 --- ve3e1
    ve3e2 --- ve4e1
    ve1tun -.- ve4tun

subgraph ve1
   ve1tun(ve1tun<br/><small>.2.1</small>)
   ve1e1(ve1e1<br/><small>.1.1</small>)
   ve1e2(ve1e2<br/><small>.1.2</small>)
end

subgraph ve2
   ve2e1(ve2e1<br/><small>.1.3</small>)
end

subgraph ve3
   ve3e1(ve3e1<br/><small>.1.4</small>)
   ve3e2(ve3e1<br/><small>.1.5</small>)
end

subgraph ve4
   ve4e1(ve4e1<br/><small>.1.6</small>)
   ve4tun(ve4tun<br/><small>.2.2</small>)
end
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