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check for unreachable root ip before assignment

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This commit is contained in:
Eric Miller
2006-04-05 02:09:06 +00:00
parent c530e25e02
commit 4b70bfa7c8
1 changed files with 3 additions and 2 deletions
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5
Info/Layer3.pm
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@@ -112,17 +112,18 @@ sub root_ip {
my $router_ip = $l3->router_ip();
my $ospf_ip = $l3->ospf_ip();
# return the first one found here (should be only)
# return the first one found here (should be only one)
if (defined $ospf_ip and scalar(keys %$ospf_ip)){
foreach my $key (keys %$ospf_ip){
my $ip = $ospf_ip->{$key};
next if $ip eq '0.0.0.0';
next unless $l3->_snmp_connect_ip($ip);
print " SNMP::Layer3::root_ip() using $ip\n" if $l3->debug();
return $ip;
}
}
return $router_ip if (defined $router_ip and $router_ip ne '0.0.0.0');
return $router_ip if ( (defined $router_ip) and ($router_ip ne '0.0.0.0') and ($l3->_snmp_connect_ip($router_ip)) );
return undef;
}