def snmpwalk(self, mib):
# Walks specified mib
ips = self.ips
# Get a list of communities, starting with any that are known to
# work on this host.
communities = self.network.communities.copy()
if self.community:
# Means we have a functional community string. Use that first.
communities.append(self.community)
communities.reverse()
def scanAllCommunities(ip):
for community in communities:
results = scan(ip, community)
if results:
return results
return False
def scan(ip, community):
session = self.snmpInit(ip, community)
try:
responses = session.walk(mib)
self.community = community
self.setmgmntip(ip, True)
print('Response on', ip, 'with', community)
return responses
except easysnmp.exceptions.EasySNMPNoSuchNameError:
# Probably means that you're hitting the wrong kind of device.
self.community = None
self.setmgmntip(ip, False)
raise
except easysnmp.exceptions.EasySNMPTimeoutError:
# Either the community string is wrong, or the address is dead.
print('No response on', ip, 'with', community)
self.community = None
self.setmgmntip(ip, False)
pass
return False
# First, we try using known-good settings for communicating with this
# host.
if self.mgmntip:
if self.community:
results = scan(self.mgmntip, self.community)
if results:
return results
results = scanAllCommunities(self.mgmntip)
if results:
return results
# If we have no known-good settings, we just iterate over everything.
for ip in ips:
if not Toolbox.ipInNetworks(ip, self.network.inaccessiblenets):
results = scanAllCommunities(ip)
if results:
return results
return False
