KB 305

How do I look at / modify / change broamax dhcp info (the telnet way)

Article:305
Created:2004-08-30 18:20:42
Categories:
  DSL

Question or Symptom

You want to inspect or change some dhcp config in your broadmax. Some clients can't get leases, others can. No one can get a lease, but dhcp is enabled.

Resolution

The broadmax sets a 720 hour lease time by default. I don't know how to clear this database when it is full without deleting and recreating the pool which is also very easy. First I'll give some commands to show the dhcp config, then I'll give an example of deleting and recreating the pool. Pieces of the same commands from the create command below can be used in the modify dhcp command as well. I'll give an example of modifying the pool dns, note you must delete and recreate a pool to resize it's start/end addresses.

# Gives currently listed pools, and their IDs.
$get dhcp server pool
  
Pool Id        : 0                  Status         : Enable         
Start Ip       : 192.168.100.10     End Ip         : 192.168.100.254
Def Lease(sec) : 900                Max Lease(sec) : 900            
Range Inuse    : 0                  Outstd Offers  : 0              
Low Thres      : 0                  Subnet Mask    : 255.255.255.0  
Domain Name    : 
Gateway Ip     : 192.168.100.1      Smtp Ip        : 0.0.0.0        
Dns Ip         : 216.184.2.2        Sec. Dns Ip    : 198.59.115.2   
Pop3 Ip        : 0.0.0.0            Nntp Ip        : 0.0.0.0        
Www Ip         : 0.0.0.0            Irc Ip         : 0.0.0.0        
Wins Ip        : 0.0.0.0            Sec. Wins Ip   : 0.0.0.0    
 
# Gives a list of the current leases
$get dhcp server address
  
Client-Ip      : 192.168.100.10     Subnet Mask  : 255.255.255.0       
Rem Lease(sec) : 0                  H/W Addr     : 00:0E:6A:D7:4E:E2   
Start Ip       : 192.168.100.10     Type         : Dynamic             
Domain Name    :                                                                  
  
# Deletes the dhcp server pool with id 0 <- thats a zero.
delete dhcp server pool poolid 0
  
# Creates the dhcp server pool id 1 with the info listed above *all one big line*
create dhcp server pool poolid 1 mask 255.255.255.0 \
mask 255.255.255.0 start-ip 192.168.1.50 end-ip 192.168.1.60 \
gwy 192.168.1.1 dns 198.59.115.2 sdns 216.184.2.2 dlease 900 mlease 900 \
dname swcp.com enable
  
commit
reboot
  
# This would modify the dns address of the pool in question
modify dhcp server pool poolid 0 dns 192.168.1.2
commit
reboot

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 KB 304 How do I get better debug info from the broadmax (the telnet way)