Change IP subnet by SNMP

Products ePMP
#1

Hi

I'm trying to change IP address on ePMP SM via SNMP.

Works fine when new IP is in the same subnet as existing IP but if I try to change to a different subnet it throws an error. Same for when changing Gateway IP.

Is there any way around this?

I was hoping to be able to use a bash script to bulk change a bunch of SM's by SNMP.

Thanks

colin

#2

What firmware version, what error is it returning, and can you provide an example of the snmpset you're using?  Also, have you tried setting both at the same time in one snmpset invokation?

j

#3

Firmware: 3.5.1

Error Returned: Error in packet.
Reason: (badValue) The value given has the wrong type or length.

snmpset Command: snmpset -c private -v2c 10.96.10.22 1.3.6.1.4.1.17713.21.3.4.7.2.0 a "10.96.23.254" 1.3.6.1.4.1.17713.21.3.4.7.4.0 a "10.96.23.1"

The above command works when the IP and Gateway are in the same subnet as the current radio IP.

Running same command with IP and GW in different subnet and I get the above error.

Thanks

colin

#4

I ended up just using SSH commands in the bash script to change the IP and gateway.

Completed script is below for anyone interested.

It takes a list of IP addresses (could also be stored in a file).

Then checks to see if network mode is set to Bridge or NAT and changes IP and gateway accordingly.

It also adds DNS and cnMaestro details via SNMP.

#!/bin/bash
IP_LIST=(192.168.2.54 192.168.2.58 192.168.2.64 192.168.2.70)
CN_URL="CNMAESTRO_URL"
CN_USER="cnmaestro_on_premises"
CN_PASS="CNMAESTRO_ONBOARDING_KEY"
DNS1="8.8.8.8"
DNS2="8.8.4.4"
SSHPASS="PASSWORD"
SSHCOMMAND="ssh -p 22 -T -o StrictHostKeyChecking=no -o BatchMode=no"
SSHACC="admin"
BRIDGE="INTEGER: 2"
IP_NET="192.168.5."
IP_HOST="10"
NEW_GW="192.168.5.1"

for IP in “${IP_LIST[@]}”

do

echo “";

echo “Logging into: ${IP}”;

echo "”;

NEW_IP=$IP_NET.$IP_HOST

NETWORK_MODE=snmpget -c private -v 2c -O v ${IP} 1.3.6.1.4.1.17713.21.1.4.4.0

snmpset -c private -v 2c ${IP} 1.3.6.1.4.1.17713.21.3.4.7.7.0 a ${DNS1}

snmpset -c private -v 2c ${IP} 1.3.6.1.4.1.17713.21.3.4.7.8.0 a ${DNS2}

snmpset -c private -v 2c ${IP} 1.3.6.1.4.1.17713.21.3.20.1.0 i “1”

snmpset -c private -v 2c ${IP} 1.3.6.1.4.1.17713.21.3.20.2.0 s ${CN_URL}

snmpset -c private -v 2c ${IP} 1.3.6.1.4.1.17713.21.3.20.3.0 s ${CN_USER}

snmpset -c private -v 2c ${IP} 1.3.6.1.4.1.17713.21.3.20.4.0 s ${CN_PASS}


    if [ "$NETWORK_MODE" = "$BRIDGE" ]; then
            echo "Network Mode is Bridge"
            sshpass -p "$SSHPASS" $SSHCOMMAND $SSHACC@$IP <<-EOF
            config set networkBridgeIPAddr $NEW_IP
            config set networkBridgeGatewayIP $NEW_GW
            config save
            config apply
            EOF
    else
            echo "Network Mode is NAT"
            sshpass -p "$SSHPASS" $SSHCOMMAND $SSHACC@$IP <<-EOF
            config set mgmtIFIPAddr $NEW_IP
            config set mgmtIFGateway $NEW_GW
            config save
            config apply
            EOF
    fi
    ((IP_HOST++))



done

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