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https://git.proxmox.com/git/mirror_frr
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85 lines
2.2 KiB
Bash
85 lines
2.2 KiB
Bash
#!/bin/bash
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# Public domain, not copyrighted..
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NUM=5
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VTYBASE=2610
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ASBASE=64560
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BGPD=/path/to/bgpd
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PREFIX=192.168.145.
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#PREFIX=3ffe:123:456::
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ADDRPLEN=32
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CONFBASE=/tmp
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PIDBASE=/var/run/frr
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CHOWNSTR=frr:frr
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for H in `seq 1 ${NUM}` ; do
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CONF="${CONFBASE}"/bgpd${H}.conf
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ADDR=${PREFIX}${H}
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if [ ! -e "$CONF" ] ; then
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# This sets up a ring of bgpd peerings
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NEXT=$(( ($H % ${NUM}) + 1 ))
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PREV=$(( (($H + $NUM - 2) % ${NUM}) + 1 ))
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NEXTADDR="${PREFIX}${NEXT}"
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NEXTAS=$((${ASBASE} + $NEXT))
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PREVADDR="${PREFIX}${PREV}"
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PREVAS=$((${ASBASE} + $PREV))
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ASN=$((64560+${H}))
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# Edit config to suit.
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cat > "$CONF" <<- EOF
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password whatever
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service advanced-vty
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!
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router bgp ${ASN}
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bgp router-id ${ADDR}
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network 10.${H}.1.0/24 pathlimit 1
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network 10.${H}.2.0/24 pathlimit 2
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network 10.${H}.3.0/24 pathlimit 3
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neighbor default peer-group
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neighbor default update-source ${ADDR}
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neighbor default capability orf prefix-list both
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neighbor default soft-reconfiguration inbound
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neighbor default route-map test out
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neighbor ${NEXTADDR} remote-as ${NEXTAS}
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neighbor ${NEXTADDR} peer-group default
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neighbor ${PREVADDR} remote-as ${PREVAS}
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neighbor ${PREVADDR} peer-group default
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!
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address-family ipv6
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network 3ffe:${H}::/48
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network 3ffe:${H}:1::/48 pathlimit 1
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network 3ffe:${H}:2::/48 pathlimit 3
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network 3ffe:${H}:3::/48 pathlimit 3
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neighbor default activate
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neighbor default capability orf prefix-list both
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neighbor default default-originate
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neighbor default route-map test out
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neighbor ${NEXTADDR} peer-group default
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neighbor ${PREVADDR} peer-group default
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exit-address-family
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!
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! bgpd still has problems with extcommunity rt/soo
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route-map test permit 10
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set extcommunity rt ${ASN}:1
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set extcommunity soo ${ASN}:2
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set community ${ASN}:1
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line vty
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!
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end
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EOF
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chown ${CHOWNSTR} "$CONF"
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fi
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# You may want to automatically add configure a local address
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# on a loop interface.
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#
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# Solaris: ifconfig vni${H} plumb ${ADDR}/${ADDRPLEN} up
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# Linux: ip address add ${ADDR}/${ADDRPLEN} dev lo 2> /dev/null
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${BGPD} -i "${PIDBASE}"/bgpd${H}.pid \
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-l ${ADDR} \
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-f "${CONF}" \
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-P $((${VTYBASE}+${H})) \
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-d
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done
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