| #!/bin/bash |
| |
| # Public domain, not copyrighted.. |
| |
| NUM=5 |
| VTYBASE=2610 |
| ASBASE=64560 |
| BGPD=/path/to/bgpd |
| PREFIX=192.168.145 |
| CONFBASE=/tmp |
| PIDBASE=/var/run/quagga |
| |
| for H in `seq 1 ${NUM}` ; do |
| CONF="${CONFBASE}"/bgpd${H}.conf |
| ADDR=${PREFIX}.${H} |
| |
| if [ ! -e "$CONF" ] ; then |
| # This sets up a ring of bgpd peerings |
| NEXT=$(( ($H % ${NUM}) + 1 )) |
| PREV=$(( (($H + 3) % ${NUM}) + 1 )) |
| NEXTADDR="${PREFIX}.${NEXT}" |
| NEXTAS=$((${ASBASE} + $NEXT)) |
| PREVADDR="${PREFIX}.${PREV}" |
| PREVAS=$((${ASBASE} + $PREV)) |
| |
| # Edit config to suit. |
| cat > "$CONF" <<- EOF |
| password whatever |
| service advanced-vty |
| ! |
| router bgp $((64560+${H})) |
| bgp router-id ${ADDR} |
| network 10.${H}.1.0/24 pathlimit 1 |
| network 10.${H}.2.0/24 pathlimit 2 |
| network 10.${H}.3.0/24 pathlimit 3 |
| neighbor default peer-group |
| neighbor default update-source ${ADDR} |
| neighbor default capability orf prefix-list both |
| neighbor default soft-reconfiguration inbound |
| neighbor ${NEXTADDR} remote-as ${NEXTAS} |
| neighbor ${NEXTADDR} peer-group default |
| neighbor ${PREVADDR} remote-as ${PREVAS} |
| neighbor ${PREVADDR} peer-group default |
| EOF |
| chown quagga:quagga "$CONF" |
| fi |
| # You may want to automatically add configure a local address |
| # on a loop interface. |
| # |
| # Solaris: ifconfig vni${H} plumb ${ADDR}/32 up |
| # Linux: ip address add ${ADDR}/32 dev lo 2> /dev/null |
| ${BGPD} -i "${PIDBASE}"/bgpd${H}.pid \ |
| -l ${ADDR} \ |
| -f "${CONF}" \ |
| -P $((${VTYBASE}+${H})) \ |
| -d |
| done |