信頼性を上げるため、相手方のチェックを直結I/Fに変更。

(banana403:/var/service/ucarp/run)
#!/bin/sh
exec 2>&1
exec env - TZ=JST-9 PATH="/usr/sbin:/sbin:/usr/bin:/bin:/usr/local/bin:/usr/local/sbin" \
ucarp --preempt --interface=vr0 \
--srcip=10.0.0.1 \
--vhid=1 --pass=むぎゅ \
--addr=206.223.150.96 \
--upscript=/usr/local/etc/zzz-matd-up.sh \
--downscript=/usr/local/etc/zzz-matd-down.sh \
--shutdown

(banana404:/var/service/ucarp/run)
#!/bin/sh
exec 2>&1
exec env - TZ=JST-9 PATH="/usr/sbin:/sbin:/usr/bin:/bin:/usr/local/bin:/usr/local/sbin" \
ucarp --preempt --interface=vr0 \
--srcip=10.0.0.2 \
--advskew=128 \
--vhid=1 --pass=むぎゅ \
--addr=206.223.150.96 \
--upscript=/usr/local/etc/zzz-matd-up.sh \
--downscript=/usr/local/etc/zzz-matd-down.sh \
--shutdown