Pix firewall 515 secondary IP address requirement

[m_aurangzeb]

i have cisco 515 pix firewall having 4.4(8) IOS. This (PIX or IOS) does not provide secondary IP address i.e can't assign more than one ip addresses to one interface. How can i assign more than one IP addresses. Do i need to upgrade IOS? if Yes, then how can i know the available IOS for pix 515? or is there any othere way ???

[jackko]

as far as i know, pix doesn't support secondary ip at all. however, it does support virtual ip with and only with vlan.